mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-21 15:12:02 +00:00
Merge branch 'master' into musl-7
This commit is contained in:
Alexey Milovidov
commit
15a0e6ab05
5
.github/workflows/pull_request.yml
vendored
5
.github/workflows/pull_request.yml
vendored
@ -537,6 +537,11 @@ jobs:
|
||||
run_command: |
|
||||
cd "$REPO_COPY/tests/ci"
|
||||
|
||||
mkdir -p "${REPORTS_PATH}/integration"
|
||||
mkdir -p "${REPORTS_PATH}/stateless"
|
||||
cp -r ${REPORTS_PATH}/changed_images* ${REPORTS_PATH}/integration
|
||||
cp -r ${REPORTS_PATH}/changed_images* ${REPORTS_PATH}/stateless
|
||||
|
||||
TEMP_PATH="${TEMP_PATH}/integration" \
|
||||
REPORTS_PATH="${REPORTS_PATH}/integration" \
|
||||
python3 integration_test_check.py "Integration $CHECK_NAME" \
|
||||
|
||||
6
.gitmodules
vendored
6
.gitmodules
vendored
@ -354,6 +354,6 @@
|
||||
[submodule "contrib/aklomp-base64"]
|
||||
path = contrib/aklomp-base64
|
||||
url = https://github.com/aklomp/base64.git
|
||||
[submodule "contrib/pocketfft"]
|
||||
path = contrib/pocketfft
|
||||
url = https://github.com/mreineck/pocketfft.git
|
||||
[submodule "contrib/sqids-cpp"]
|
||||
path = contrib/sqids-cpp
|
||||
url = https://github.com/sqids/sqids-cpp.git
|
||||
|
||||
238
CHANGELOG.md
238
CHANGELOG.md
@ -1,4 +1,5 @@
|
||||
### Table of Contents
|
||||
**[ClickHouse release v23.11, 2023-12-06](#2311)**<br/>
|
||||
**[ClickHouse release v23.10, 2023-11-02](#2310)**<br/>
|
||||
**[ClickHouse release v23.9, 2023-09-28](#239)**<br/>
|
||||
**[ClickHouse release v23.8 LTS, 2023-08-31](#238)**<br/>
|
||||
@ -13,7 +14,218 @@
|
||||
|
||||
# 2023 Changelog
|
||||
|
||||
### ClickHouse release 23.10, 2023-11-02
|
||||
### <a id="2311"></a> ClickHouse release 23.11, 2023-12-06
|
||||
|
||||
#### Backward Incompatible Change
|
||||
* The default ClickHouse server configuration file has enabled `access_management` (user manipulation by SQL queries) and `named_collection_control` (manipulation of named collection by SQL queries) for the `default` user by default. This closes [#56482](https://github.com/ClickHouse/ClickHouse/issues/56482). [#56619](https://github.com/ClickHouse/ClickHouse/pull/56619) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Multiple improvements for `RESPECT NULLS`/`IGNORE NULLS` for window functions. If you use them as aggregate functions and store the states of aggregate functions with these modifiers, they might become incompatible. [#57189](https://github.com/ClickHouse/ClickHouse/pull/57189) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Remove optimization `optimize_move_functions_out_of_any`. [#57190](https://github.com/ClickHouse/ClickHouse/pull/57190) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Formatters `%l`/`%k`/`%c` in function `parseDateTime` are now able to parse hours/months without leading zeros, e.g. `select parseDateTime('2023-11-26 8:14', '%F %k:%i')` now works. Set `parsedatetime_parse_without_leading_zeros = 0` to restore the previous behavior which required two digits. Function `formatDateTime` is now also able to print hours/months without leading zeros. This is controlled by setting `formatdatetime_format_without_leading_zeros` but off by default to not break existing use cases. [#55872](https://github.com/ClickHouse/ClickHouse/pull/55872) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* You can no longer use the aggregate function `avgWeighted` with arguments of type `Decimal`. Workaround: convert arguments to `Float64`. This closes [#43928](https://github.com/ClickHouse/ClickHouse/issues/43928). This closes [#31768](https://github.com/ClickHouse/ClickHouse/issues/31768). This closes [#56435](https://github.com/ClickHouse/ClickHouse/issues/56435). If you have used this function inside materialized views or projections with `Decimal` arguments, contact support@clickhouse.com. Fixed error in aggregate function `sumMap` and made it slower around 1.5..2 times. It does not matter because the function is garbage anyway. This closes [#54955](https://github.com/ClickHouse/ClickHouse/issues/54955). This closes [#53134](https://github.com/ClickHouse/ClickHouse/issues/53134). This closes [#55148](https://github.com/ClickHouse/ClickHouse/issues/55148). Fix a bug in function `groupArraySample` - it used the same random seed in case more than one aggregate state is generated in a query. [#56350](https://github.com/ClickHouse/ClickHouse/pull/56350) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
|
||||
#### New Feature
|
||||
* Added server setting `async_load_databases` for asynchronous loading of databases and tables. Speeds up the server start time. Applies to databases with `Ordinary`, `Atomic` and `Replicated` engines. Their tables load metadata asynchronously. Query to a table increases the priority of the load job and waits for it to be done. Added a new table `system.asynchronous_loader` for introspection. [#49351](https://github.com/ClickHouse/ClickHouse/pull/49351) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* Add system table `blob_storage_log`. It allows auditing all the data written to S3 and other object storages. [#52918](https://github.com/ClickHouse/ClickHouse/pull/52918) ([vdimir](https://github.com/vdimir)).
|
||||
* Use statistics to order prewhere conditions better. [#53240](https://github.com/ClickHouse/ClickHouse/pull/53240) ([Han Fei](https://github.com/hanfei1991)).
|
||||
* Added support for compression in the Keeper's protocol. It can be enabled on the ClickHouse side by using this flag `use_compression` inside `zookeeper` section. Keep in mind that only ClickHouse Keeper supports compression, while Apache ZooKeeper does not. Resolves [#49507](https://github.com/ClickHouse/ClickHouse/issues/49507). [#54957](https://github.com/ClickHouse/ClickHouse/pull/54957) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Introduce the feature `storage_metadata_write_full_object_key`. If it is set as `true` then metadata files are written with the new format. With that format ClickHouse stores full remote object key in the metadata file which allows better flexibility and optimization. [#55566](https://github.com/ClickHouse/ClickHouse/pull/55566) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Add new settings and syntax to protect named collections' fields from being overridden. This is meant to prevent a malicious user from obtaining unauthorized access to secrets. [#55782](https://github.com/ClickHouse/ClickHouse/pull/55782) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
|
||||
* Add `hostname` column to all system log tables - it is useful if you make the system tables replicated, shared, or distributed. [#55894](https://github.com/ClickHouse/ClickHouse/pull/55894) ([Bharat Nallan](https://github.com/bharatnc)).
|
||||
* Add `CHECK ALL TABLES` query. [#56022](https://github.com/ClickHouse/ClickHouse/pull/56022) ([vdimir](https://github.com/vdimir)).
|
||||
* Added function `fromDaysSinceYearZero` which is similar to MySQL's `FROM_DAYS`. E.g. `SELECT fromDaysSinceYearZero(739136)` returns `2023-09-08`. [#56088](https://github.com/ClickHouse/ClickHouse/pull/56088) ([Joanna Hulboj](https://github.com/jh0x)).
|
||||
* Add an external Python tool to view backups and to extract information from them without using ClickHouse. [#56268](https://github.com/ClickHouse/ClickHouse/pull/56268) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Implement a new setting called `preferred_optimize_projection_name`. If it is set to a non-empty string, the specified projection would be used if possible instead of choosing from all the candidates. [#56309](https://github.com/ClickHouse/ClickHouse/pull/56309) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Add 4-letter command for yielding/resigning leadership (https://github.com/ClickHouse/ClickHouse/issues/56352). [#56354](https://github.com/ClickHouse/ClickHouse/pull/56354) ([Pradeep Chhetri](https://github.com/chhetripradeep)). [#56620](https://github.com/ClickHouse/ClickHouse/pull/56620) ([Pradeep Chhetri](https://github.com/chhetripradeep)).
|
||||
* Added a new SQL function, `arrayRandomSample(arr, k)` which returns a sample of k elements from the input array. Similar functionality could previously be achieved only with less convenient syntax, e.g. `SELECT arrayReduce('groupArraySample(3)', range(10))`. [#56416](https://github.com/ClickHouse/ClickHouse/pull/56416) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Added support for `Float16` type data to use in `.npy` files. Closes [#56344](https://github.com/ClickHouse/ClickHouse/issues/56344). [#56424](https://github.com/ClickHouse/ClickHouse/pull/56424) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Added a system view `information_schema.statistics` for better compatibility with Tableau Online. [#56425](https://github.com/ClickHouse/ClickHouse/pull/56425) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Add `system.symbols` table useful for introspection of the binary. [#56548](https://github.com/ClickHouse/ClickHouse/pull/56548) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Configurable dashboards. Queries for charts are now loaded using a query, which by default uses a new `system.dashboards` table. [#56771](https://github.com/ClickHouse/ClickHouse/pull/56771) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* Introduce `fileCluster` table function - it is useful if you mount a shared filesystem (NFS and similar) into the `user_files` directory. [#56868](https://github.com/ClickHouse/ClickHouse/pull/56868) ([Andrey Zvonov](https://github.com/zvonand)).
|
||||
* Add `_size` virtual column with file size in bytes to `s3/file/hdfs/url/azureBlobStorage` engines. [#57126](https://github.com/ClickHouse/ClickHouse/pull/57126) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Expose the number of errors for each error code occurred on a server since last restart from the Prometheus endpoint. [#57209](https://github.com/ClickHouse/ClickHouse/pull/57209) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* ClickHouse keeper reports its running availability zone at `/keeper/availability-zone` path. This can be configured via `<availability_zone><value>us-west-1a</value></availability_zone>`. [#56715](https://github.com/ClickHouse/ClickHouse/pull/56715) ([Jianfei Hu](https://github.com/incfly)).
|
||||
* Make ALTER materialized_view MODIFY QUERY non experimental and deprecate `allow_experimental_alter_materialized_view_structure` setting. Fixes [#15206](https://github.com/ClickHouse/ClickHouse/issues/15206). [#57311](https://github.com/ClickHouse/ClickHouse/pull/57311) ([alesapin](https://github.com/alesapin)).
|
||||
* Setting `join_algorithm` respects specified order [#51745](https://github.com/ClickHouse/ClickHouse/pull/51745) ([vdimir](https://github.com/vdimir)).
|
||||
* Add support for the [well-known Protobuf types](https://protobuf.dev/reference/protobuf/google.protobuf/) in the Protobuf format. [#56741](https://github.com/ClickHouse/ClickHouse/pull/56741) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
|
||||
|
||||
#### Performance Improvement
|
||||
* Adaptive timeouts for interacting with S3. The first attempt is made with low send and receive timeouts. [#56314](https://github.com/ClickHouse/ClickHouse/pull/56314) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Increase the default value of `max_concurrent_queries` from 100 to 1000. This makes sense when there is a large number of connecting clients, which are slowly sending or receiving data, so the server is not limited by CPU, or when the number of CPU cores is larger than 100. Also, enable the concurrency control by default, and set the desired number of query processing threads in total as twice the number of CPU cores. It improves performance in scenarios with a very large number of concurrent queries. [#46927](https://github.com/ClickHouse/ClickHouse/pull/46927) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Support parallel evaluation of window functions. Fixes [#34688](https://github.com/ClickHouse/ClickHouse/issues/34688). [#39631](https://github.com/ClickHouse/ClickHouse/pull/39631) ([Dmitry Novik](https://github.com/novikd)).
|
||||
* `Numbers` table engine (of the `system.numbers` table) now analyzes the condition to generate the needed subset of data, like table's index. [#50909](https://github.com/ClickHouse/ClickHouse/pull/50909) ([JackyWoo](https://github.com/JackyWoo)).
|
||||
* Improved the performance of filtering by `IN (...)` condition for `Merge` table engine. [#54905](https://github.com/ClickHouse/ClickHouse/pull/54905) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* An improvement which takes place when the filesystem cache is full and there are big reads. [#55158](https://github.com/ClickHouse/ClickHouse/pull/55158) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Add ability to disable checksums for S3 to avoid excessive pass over the file (this is controlled by the setting `s3_disable_checksum`). [#55559](https://github.com/ClickHouse/ClickHouse/pull/55559) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Now we read synchronously from remote tables when data is in page cache (like we do for local tables). It is faster, it doesn't require synchronisation inside the thread pool, and doesn't hesitate to do `seek`-s on local FS, and reduces CPU wait. [#55841](https://github.com/ClickHouse/ClickHouse/pull/55841) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Optimization for getting value from `map`, `arrayElement`. It will bring about 30% speedup. - reduce the reserved memory - reduce the `resize` call. [#55957](https://github.com/ClickHouse/ClickHouse/pull/55957) ([lgbo](https://github.com/lgbo-ustc)).
|
||||
* Optimization of multi-stage filtering with AVX-512. The performance experiments of the OnTime dataset on the ICX device (Intel Xeon Platinum 8380 CPU, 80 cores, 160 threads) show that this change could bring the improvements of 7.4%, 5.9%, 4.7%, 3.0%, and 4.6% to the QPS of the query Q2, Q3, Q4, Q5 and Q6 respectively while having no impact on others. [#56079](https://github.com/ClickHouse/ClickHouse/pull/56079) ([Zhiguo Zhou](https://github.com/ZhiguoZh)).
|
||||
* Limit the number of threads busy inside the query profiler. If there are more - they will skip profiling. [#56105](https://github.com/ClickHouse/ClickHouse/pull/56105) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Decrease the amount of virtual function calls in window functions. [#56120](https://github.com/ClickHouse/ClickHouse/pull/56120) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Allow recursive Tuple field pruning in ORC data format to speed up scaning. [#56122](https://github.com/ClickHouse/ClickHouse/pull/56122) ([李扬](https://github.com/taiyang-li)).
|
||||
* Trivial count optimization for `Npy` data format: queries like `select count() from 'data.npy'` will work much more fast because of caching the results. [#56304](https://github.com/ClickHouse/ClickHouse/pull/56304) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Queries with aggregation and a large number of streams will use less amount of memory during the plan's construction. [#57074](https://github.com/ClickHouse/ClickHouse/pull/57074) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Improve performance of executing queries for use cases with many users and highly concurrent queries (>2000 QPS) by optimizing the access to ProcessList. [#57106](https://github.com/ClickHouse/ClickHouse/pull/57106) ([Andrej Hoos](https://github.com/adikus)).
|
||||
* Trivial improvement on array join, reuse some intermediate results. [#57183](https://github.com/ClickHouse/ClickHouse/pull/57183) ([李扬](https://github.com/taiyang-li)).
|
||||
* There are cases when stack unwinding was slow. Not anymore. [#57221](https://github.com/ClickHouse/ClickHouse/pull/57221) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Now we use default read pool for reading from external storage when `max_streams = 1`. It is beneficial when read prefetches are enabled. [#57334](https://github.com/ClickHouse/ClickHouse/pull/57334) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Keeper improvement: improve memory-usage during startup by delaying log preprocessing. [#55660](https://github.com/ClickHouse/ClickHouse/pull/55660) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Improved performance of glob matching for `File` and `HDFS` storages. [#56141](https://github.com/ClickHouse/ClickHouse/pull/56141) ([Andrey Zvonov](https://github.com/zvonand)).
|
||||
* Posting lists in experimental full text indexes are now compressed which reduces their size by 10-30%. [#56226](https://github.com/ClickHouse/ClickHouse/pull/56226) ([Harry Lee](https://github.com/HarryLeeIBM)).
|
||||
* Parallelise `BackupEntriesCollector` in backups. [#56312](https://github.com/ClickHouse/ClickHouse/pull/56312) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
|
||||
#### Improvement
|
||||
* Add a new `MergeTree` setting `add_implicit_sign_column_constraint_for_collapsing_engine` (disabled by default). When enabled, it adds an implicit CHECK constraint for `CollapsingMergeTree` tables that restricts the value of the `Sign` column to be only -1 or 1. [#56701](https://github.com/ClickHouse/ClickHouse/issues/56701). [#56986](https://github.com/ClickHouse/ClickHouse/pull/56986) ([Kevin Mingtarja](https://github.com/kevinmingtarja)).
|
||||
* Enable adding new disk to storage configuration without restart. [#56367](https://github.com/ClickHouse/ClickHouse/pull/56367) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Support creating and materializing index in the same alter query, also support "modify TTL" and "materialize TTL" in the same query. Closes [#55651](https://github.com/ClickHouse/ClickHouse/issues/55651). [#56331](https://github.com/ClickHouse/ClickHouse/pull/56331) ([flynn](https://github.com/ucasfl)).
|
||||
* Add a new table function named `fuzzJSON` with rows containing perturbed versions of the source JSON string with random variations. [#56490](https://github.com/ClickHouse/ClickHouse/pull/56490) ([Julia Kartseva](https://github.com/jkartseva)).
|
||||
* Engine `Merge` filters the records according to the row policies of the underlying tables, so you don't have to create another row policy on a `Merge` table. [#50209](https://github.com/ClickHouse/ClickHouse/pull/50209) ([Ilya Golshtein](https://github.com/ilejn)).
|
||||
* Add a setting `max_execution_time_leaf` to limit the execution time on shard for distributed query, and `timeout_overflow_mode_leaf` to control the behaviour if timeout happens. [#51823](https://github.com/ClickHouse/ClickHouse/pull/51823) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Add ClickHouse setting to disable tunneling for HTTPS requests over HTTP proxy. [#55033](https://github.com/ClickHouse/ClickHouse/pull/55033) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Set `background_fetches_pool_size` to 16, background_schedule_pool_size to 512 that is better for production usage with frequent small insertions. [#54327](https://github.com/ClickHouse/ClickHouse/pull/54327) ([Denny Crane](https://github.com/den-crane)).
|
||||
* While read data from a csv format file, and at end of line is `\r` , which not followed by `\n`, then we will enconter the exception as follows `Cannot parse CSV format: found \r (CR) not followed by \n (LF). Line must end by \n (LF) or \r\n (CR LF) or \n\r.` In clickhouse, the csv end of line must be `\n` or `\r\n` or `\n\r`, so the `\r` must be followed by `\n`, but in some suitation, the csv input data is abnormal, like above, `\r` is at end of line. [#54340](https://github.com/ClickHouse/ClickHouse/pull/54340) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Update Arrow library to release-13.0.0 that supports new encodings. Closes [#44505](https://github.com/ClickHouse/ClickHouse/issues/44505). [#54800](https://github.com/ClickHouse/ClickHouse/pull/54800) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Improve performance of ON CLUSTER queries by removing heavy system calls to get all network interfaces when looking for local ip address in the DDL entry hosts list. [#54909](https://github.com/ClickHouse/ClickHouse/pull/54909) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Fixed accounting of memory allocated before attaching a thread to a query or a user. [#56089](https://github.com/ClickHouse/ClickHouse/pull/56089) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Add support for `LARGE_LIST` in Apache Arrow formats. [#56118](https://github.com/ClickHouse/ClickHouse/pull/56118) ([edef](https://github.com/edef1c)).
|
||||
* Allow manual compaction of `EmbeddedRocksDB` via `OPTIMIZE` query. [#56225](https://github.com/ClickHouse/ClickHouse/pull/56225) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Add ability to specify BlockBasedTableOptions for `EmbeddedRocksDB` tables. [#56264](https://github.com/ClickHouse/ClickHouse/pull/56264) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* `SHOW COLUMNS` now displays MySQL's equivalent data type name when the connection was made through the MySQL protocol. Previously, this was the case when setting `use_mysql_types_in_show_columns = 1`. The setting is retained but made obsolete. [#56277](https://github.com/ClickHouse/ClickHouse/pull/56277) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fixed possible `The local set of parts of table doesn't look like the set of parts in ZooKeeper` error if server was restarted just after `TRUNCATE` or `DROP PARTITION`. [#56282](https://github.com/ClickHouse/ClickHouse/pull/56282) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fixed handling of non-const query strings in functions `formatQuery`/ `formatQuerySingleLine`. Also added `OrNull` variants of both functions that return a NULL when a query cannot be parsed instead of throwing an exception. [#56327](https://github.com/ClickHouse/ClickHouse/pull/56327) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Allow backup of materialized view with dropped inner table instead of failing the backup. [#56387](https://github.com/ClickHouse/ClickHouse/pull/56387) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Queries to `system.replicas` initiate requests to ZooKeeper when certain columns are queried. When there are thousands of tables these requests might produce a considerable load on ZooKeeper. If there are multiple simultaneous queries to `system.replicas` they do same requests multiple times. The change is to "deduplicate" requests from concurrent queries. [#56420](https://github.com/ClickHouse/ClickHouse/pull/56420) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Fix translation to MySQL compatible query for querying external databases. [#56456](https://github.com/ClickHouse/ClickHouse/pull/56456) ([flynn](https://github.com/ucasfl)).
|
||||
* Add support for backing up and restoring tables using `KeeperMap` engine. [#56460](https://github.com/ClickHouse/ClickHouse/pull/56460) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* 404 response for CompleteMultipartUpload has to be rechecked. Operation could be done on server even if client got timeout or other network errors. The next retry of CompleteMultipartUpload receives 404 response. If the object key exists that operation is considered as successful. [#56475](https://github.com/ClickHouse/ClickHouse/pull/56475) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Enable the HTTP OPTIONS method by default - it simplifies requesting ClickHouse from a web browser. [#56483](https://github.com/ClickHouse/ClickHouse/pull/56483) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* The value for `dns_max_consecutive_failures` was changed by mistake in [#46550](https://github.com/ClickHouse/ClickHouse/issues/46550) - this is reverted and adjusted to a better value. Also, increased the HTTP keep-alive timeout to a reasonable value from production. [#56485](https://github.com/ClickHouse/ClickHouse/pull/56485) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Load base backups lazily (a base backup won't be loaded until it's needed). Also add some log message and profile events for backups. [#56516](https://github.com/ClickHouse/ClickHouse/pull/56516) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Setting `query_cache_store_results_of_queries_with_nondeterministic_functions` (with values `false` or `true`) was marked obsolete. It was replaced by setting `query_cache_nondeterministic_function_handling`, a three-valued enum that controls how the query cache handles queries with non-deterministic functions: a) throw an exception (default behavior), b) save the non-deterministic query result regardless, or c) ignore, i.e. don't throw an exception and don't cache the result. [#56519](https://github.com/ClickHouse/ClickHouse/pull/56519) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Rewrite equality with `is null` check in JOIN ON section. Experimental *Analyzer only*. [#56538](https://github.com/ClickHouse/ClickHouse/pull/56538) ([vdimir](https://github.com/vdimir)).
|
||||
* Function`concat` now supports arbitrary argument types (instead of only String and FixedString arguments). This makes it behave more similar to MySQL `concat` implementation. For example, `SELECT concat('ab', 42)` now returns `ab42`. [#56540](https://github.com/ClickHouse/ClickHouse/pull/56540) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Allow getting cache configuration from 'named_collection' section in config or from SQL created named collections. [#56541](https://github.com/ClickHouse/ClickHouse/pull/56541) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Update `query_masking_rules` when reloading the config ([#56449](https://github.com/ClickHouse/ClickHouse/issues/56449)). [#56573](https://github.com/ClickHouse/ClickHouse/pull/56573) ([Mikhail Koviazin](https://github.com/mkmkme)).
|
||||
* PostgreSQL database engine: Make the removal of outdated tables less aggressive with unsuccessful postgres connection. [#56609](https://github.com/ClickHouse/ClickHouse/pull/56609) ([jsc0218](https://github.com/jsc0218)).
|
||||
* It took too much time to connnect to PG when URL is not right, so the relevant query stucks there and get cancelled. [#56648](https://github.com/ClickHouse/ClickHouse/pull/56648) ([jsc0218](https://github.com/jsc0218)).
|
||||
* Keeper improvement: disable compressed logs by default in Keeper. [#56763](https://github.com/ClickHouse/ClickHouse/pull/56763) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Add config setting `wait_dictionaries_load_at_startup`. [#56782](https://github.com/ClickHouse/ClickHouse/pull/56782) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* There was a potential vulnerability in previous ClickHouse versions: if a user has connected and unsuccessfully tried to authenticate with the "interserver secret" method, the server didn't terminate the connection immediately but continued to receive and ignore the leftover packets from the client. While these packets are ignored, they are still parsed, and if they use a compression method with another known vulnerability, it will lead to exploitation of it without authentication. This issue was found with [ClickHouse Bug Bounty Program](https://github.com/ClickHouse/ClickHouse/issues/38986) by https://twitter.com/malacupa. [#56794](https://github.com/ClickHouse/ClickHouse/pull/56794) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fetching a part waits when that part is fully committed on remote replica. It is better not send part in PreActive state. In case of zero copy this is mandatory restriction. [#56808](https://github.com/ClickHouse/ClickHouse/pull/56808) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Fix possible postgresql logical replication conversion error when using experimental `MaterializedPostgreSQL`. [#53721](https://github.com/ClickHouse/ClickHouse/pull/53721) ([takakawa](https://github.com/takakawa)).
|
||||
* Implement user-level setting `alter_move_to_space_execute_async` which allow to execute queries `ALTER TABLE ... MOVE PARTITION|PART TO DISK|VOLUME` asynchronously. The size of pool for background executions is controlled by `background_move_pool_size`. Default behavior is synchronous execution. Fixes [#47643](https://github.com/ClickHouse/ClickHouse/issues/47643). [#56809](https://github.com/ClickHouse/ClickHouse/pull/56809) ([alesapin](https://github.com/alesapin)).
|
||||
* Able to filter by engine when scanning system.tables, avoid unnecessary (potentially time-consuming) connection. [#56813](https://github.com/ClickHouse/ClickHouse/pull/56813) ([jsc0218](https://github.com/jsc0218)).
|
||||
* Show `total_bytes` and `total_rows` in system tables for RocksDB storage. [#56816](https://github.com/ClickHouse/ClickHouse/pull/56816) ([Aleksandr Musorin](https://github.com/AVMusorin)).
|
||||
* Allow basic commands in ALTER for TEMPORARY tables. [#56892](https://github.com/ClickHouse/ClickHouse/pull/56892) ([Sergey](https://github.com/icuken)).
|
||||
* LZ4 compression. Buffer compressed block in a rare case when out buffer capacity is not enough for writing compressed block directly to out's buffer. [#56938](https://github.com/ClickHouse/ClickHouse/pull/56938) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Add metrics for the number of queued jobs, which is useful for the IO thread pool. [#56958](https://github.com/ClickHouse/ClickHouse/pull/56958) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add a setting for PostgreSQL table engine setting in the config file. Added a check for the setting Added documentation around the additional setting. [#56959](https://github.com/ClickHouse/ClickHouse/pull/56959) ([Peignon Melvyn](https://github.com/melvynator)).
|
||||
* Function `concat` can now be called with a single argument, e.g., `SELECT concat('abc')`. This makes its behavior more consistent with MySQL's concat implementation. [#57000](https://github.com/ClickHouse/ClickHouse/pull/57000) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Signs all `x-amz-*` headers as required by AWS S3 docs. [#57001](https://github.com/ClickHouse/ClickHouse/pull/57001) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Function `fromDaysSinceYearZero` (alias: `FROM_DAYS`) can now be used with unsigned and signed integer types (previously, it had to be an unsigned integer). This improve compatibility with 3rd party tools such as Tableau Online. [#57002](https://github.com/ClickHouse/ClickHouse/pull/57002) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Add `system.s3queue_log` to default config. [#57036](https://github.com/ClickHouse/ClickHouse/pull/57036) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Change the default for `wait_dictionaries_load_at_startup` to true, and use this setting only if `dictionaries_lazy_load` is false. [#57133](https://github.com/ClickHouse/ClickHouse/pull/57133) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Check dictionary source type on creation even if `dictionaries_lazy_load` is enabled. [#57134](https://github.com/ClickHouse/ClickHouse/pull/57134) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Plan-level optimizations can now be enabled/disabled individually. Previously, it was only possible to disable them all. The setting which previously did that (`query_plan_enable_optimizations`) is retained and can still be used to disable all optimizations. [#57152](https://github.com/ClickHouse/ClickHouse/pull/57152) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* The server's exit code will correspond to the exception code. For example, if the server cannot start due to memory limit, it will exit with the code 241 = MEMORY_LIMIT_EXCEEDED. In previous versions, the exit code for exceptions was always 70 = Poco::Util::ExitCode::EXIT_SOFTWARE. [#57153](https://github.com/ClickHouse/ClickHouse/pull/57153) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Do not demangle and symbolize stack frames from `functional` C++ header. [#57201](https://github.com/ClickHouse/ClickHouse/pull/57201) ([Mike Kot](https://github.com/myrrc)).
|
||||
* HTTP server page `/dashboard` now supports charts with multiple lines. [#57236](https://github.com/ClickHouse/ClickHouse/pull/57236) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* The `max_memory_usage_in_client` command line option supports a string value with a suffix (K, M, G, etc). Closes [#56879](https://github.com/ClickHouse/ClickHouse/issues/56879). [#57273](https://github.com/ClickHouse/ClickHouse/pull/57273) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Bumped Intel QPL (used by codec `DEFLATE_QPL`) from v1.2.0 to v1.3.1 . Also fixed a bug in case of BOF (Block On Fault) = 0, changed to handle page faults by falling back to SW path. [#57291](https://github.com/ClickHouse/ClickHouse/pull/57291) ([jasperzhu](https://github.com/jinjunzh)).
|
||||
* Increase default `replicated_deduplication_window` of MergeTree settings from 100 to 1k. [#57335](https://github.com/ClickHouse/ClickHouse/pull/57335) ([sichenzhao](https://github.com/sichenzhao)).
|
||||
* Stop using `INCONSISTENT_METADATA_FOR_BACKUP` that much. If possible prefer to continue scanning instead of stopping and starting the scanning for backup from the beginning. [#57385](https://github.com/ClickHouse/ClickHouse/pull/57385) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
|
||||
#### Build/Testing/Packaging Improvement
|
||||
* Add SQLLogic test. [#56078](https://github.com/ClickHouse/ClickHouse/pull/56078) ([Han Fei](https://github.com/hanfei1991)).
|
||||
* Make `clickhouse-local` and `clickhouse-client` available under short names (`ch`, `chl`, `chc`) for usability. [#56634](https://github.com/ClickHouse/ClickHouse/pull/56634) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Optimized build size further by removing unused code from external libraries. [#56786](https://github.com/ClickHouse/ClickHouse/pull/56786) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add automatic check that there are no large translation units. [#56559](https://github.com/ClickHouse/ClickHouse/pull/56559) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Lower the size of the single-binary distribution. This closes [#55181](https://github.com/ClickHouse/ClickHouse/issues/55181). [#56617](https://github.com/ClickHouse/ClickHouse/pull/56617) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Information about the sizes of every translation unit and binary file after each build will be sent to the CI database in ClickHouse Cloud. This closes [#56107](https://github.com/ClickHouse/ClickHouse/issues/56107). [#56636](https://github.com/ClickHouse/ClickHouse/pull/56636) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Certain files of "Apache Arrow" library (which we use only for non-essential things like parsing the arrow format) were rebuilt all the time regardless of the build cache. This is fixed. [#56657](https://github.com/ClickHouse/ClickHouse/pull/56657) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Avoid recompiling translation units depending on the autogenerated source file about version. [#56660](https://github.com/ClickHouse/ClickHouse/pull/56660) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Tracing data of the linker invocations will be sent to the CI database in ClickHouse Cloud. [#56725](https://github.com/ClickHouse/ClickHouse/pull/56725) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Use DWARF 5 debug symbols for the clickhouse binary (was DWARF 4 previously). [#56770](https://github.com/ClickHouse/ClickHouse/pull/56770) ([Michael Kolupaev](https://github.com/al13n321)).
|
||||
* Add a new build option `SANITIZE_COVERAGE`. If it is enabled, the code is instrumented to track the coverage. The collected information is available inside ClickHouse with: (1) a new function `coverage` that returns an array of unique addresses in the code found after the previous coverage reset; (2) `SYSTEM RESET COVERAGE` query that resets the accumulated data. This allows us to compare the coverage of different tests, including differential code coverage. Continuation of [#20539](https://github.com/ClickHouse/ClickHouse/issues/20539). [#56102](https://github.com/ClickHouse/ClickHouse/pull/56102) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Some of the stack frames might not be resolved when collecting stacks. In such cases the raw address might be helpful. [#56267](https://github.com/ClickHouse/ClickHouse/pull/56267) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Add an option to disable `libssh`. [#56333](https://github.com/ClickHouse/ClickHouse/pull/56333) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Enable temporary_data_in_cache in S3 tests in CI. [#48425](https://github.com/ClickHouse/ClickHouse/pull/48425) ([vdimir](https://github.com/vdimir)).
|
||||
* Set the max memory usage for clickhouse-client (`1G`) in the CI. [#56873](https://github.com/ClickHouse/ClickHouse/pull/56873) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
|
||||
#### Bug Fix (user-visible misbehavior in an official stable release)
|
||||
* Fix exerimental Analyzer - insertion from select with subquery referencing insertion table should process only insertion block. [#50857](https://github.com/ClickHouse/ClickHouse/pull/50857) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
|
||||
* Fix a bug in `str_to_map` function. [#56423](https://github.com/ClickHouse/ClickHouse/pull/56423) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Keeper `reconfig`: add timeout before yielding/taking leadership [#53481](https://github.com/ClickHouse/ClickHouse/pull/53481) ([Mike Kot](https://github.com/myrrc)).
|
||||
* Fix incorrect header in grace hash join and filter pushdown [#53922](https://github.com/ClickHouse/ClickHouse/pull/53922) ([vdimir](https://github.com/vdimir)).
|
||||
* Select from system tables when table based on table function. [#55540](https://github.com/ClickHouse/ClickHouse/pull/55540) ([MikhailBurdukov](https://github.com/MikhailBurdukov)).
|
||||
* RFC: Fix "Cannot find column X in source stream" for Distributed queries with LIMIT BY [#55836](https://github.com/ClickHouse/ClickHouse/pull/55836) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Fix 'Cannot read from file:' while running client in a background [#55976](https://github.com/ClickHouse/ClickHouse/pull/55976) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix clickhouse-local exit on bad send_logs_level setting [#55994](https://github.com/ClickHouse/ClickHouse/pull/55994) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Bug fix explain ast with parameterized view [#56004](https://github.com/ClickHouse/ClickHouse/pull/56004) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Fix a crash during table loading on startup [#56232](https://github.com/ClickHouse/ClickHouse/pull/56232) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix ClickHouse-sourced dictionaries with an explicit query [#56236](https://github.com/ClickHouse/ClickHouse/pull/56236) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix segfault in signal handler for Keeper [#56266](https://github.com/ClickHouse/ClickHouse/pull/56266) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix incomplete query result for UNION in view() function. [#56274](https://github.com/ClickHouse/ClickHouse/pull/56274) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix inconsistency of "cast('0' as DateTime64(3))" and "cast('0' as Nullable(DateTime64(3)))" [#56286](https://github.com/ClickHouse/ClickHouse/pull/56286) ([李扬](https://github.com/taiyang-li)).
|
||||
* Fix rare race condition related to Memory allocation failure [#56303](https://github.com/ClickHouse/ClickHouse/pull/56303) ([alesapin](https://github.com/alesapin)).
|
||||
* Fix restore from backup with `flatten_nested` and `data_type_default_nullable` [#56306](https://github.com/ClickHouse/ClickHouse/pull/56306) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix crash in case of adding a column with type Object(JSON) [#56307](https://github.com/ClickHouse/ClickHouse/pull/56307) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Fix crash in filterPushDown [#56380](https://github.com/ClickHouse/ClickHouse/pull/56380) ([vdimir](https://github.com/vdimir)).
|
||||
* Fix restore from backup with mat view and dropped source table [#56383](https://github.com/ClickHouse/ClickHouse/pull/56383) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix segfault during Kerberos initialization [#56401](https://github.com/ClickHouse/ClickHouse/pull/56401) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix buffer overflow in T64 [#56434](https://github.com/ClickHouse/ClickHouse/pull/56434) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fix nullable primary key in final (2) [#56452](https://github.com/ClickHouse/ClickHouse/pull/56452) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix ON CLUSTER queries without database on initial node [#56484](https://github.com/ClickHouse/ClickHouse/pull/56484) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix startup failure due to TTL dependency [#56489](https://github.com/ClickHouse/ClickHouse/pull/56489) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix ALTER COMMENT queries ON CLUSTER [#56491](https://github.com/ClickHouse/ClickHouse/pull/56491) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix ALTER COLUMN with ALIAS [#56493](https://github.com/ClickHouse/ClickHouse/pull/56493) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix empty NAMED COLLECTIONs [#56494](https://github.com/ClickHouse/ClickHouse/pull/56494) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix two cases of projection analysis. [#56502](https://github.com/ClickHouse/ClickHouse/pull/56502) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix handling of aliases in query cache [#56545](https://github.com/ClickHouse/ClickHouse/pull/56545) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix conversion from `Nullable(Enum)` to `Nullable(String)` [#56644](https://github.com/ClickHouse/ClickHouse/pull/56644) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* More reliable log handling in Keeper [#56670](https://github.com/ClickHouse/ClickHouse/pull/56670) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix configuration merge for nodes with substitution attributes [#56694](https://github.com/ClickHouse/ClickHouse/pull/56694) ([Konstantin Bogdanov](https://github.com/thevar1able)).
|
||||
* Fix duplicate usage of table function input(). [#56695](https://github.com/ClickHouse/ClickHouse/pull/56695) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix: RabbitMQ OpenSSL dynamic loading issue [#56703](https://github.com/ClickHouse/ClickHouse/pull/56703) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Fix crash in GCD codec in case when zeros present in data [#56704](https://github.com/ClickHouse/ClickHouse/pull/56704) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Fix 'mutex lock failed: Invalid argument' in clickhouse-local during insert into function [#56710](https://github.com/ClickHouse/ClickHouse/pull/56710) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix Date text parsing in optimistic path [#56765](https://github.com/ClickHouse/ClickHouse/pull/56765) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix crash in FPC codec [#56795](https://github.com/ClickHouse/ClickHouse/pull/56795) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* DatabaseReplicated: fix DDL query timeout after recovering a replica [#56796](https://github.com/ClickHouse/ClickHouse/pull/56796) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix incorrect nullable columns reporting in MySQL binary protocol [#56799](https://github.com/ClickHouse/ClickHouse/pull/56799) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Support Iceberg metadata files for metastore tables [#56810](https://github.com/ClickHouse/ClickHouse/pull/56810) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix TSAN report under transform [#56817](https://github.com/ClickHouse/ClickHouse/pull/56817) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix SET query and SETTINGS formatting [#56825](https://github.com/ClickHouse/ClickHouse/pull/56825) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix failure to start due to table dependency in joinGet [#56828](https://github.com/ClickHouse/ClickHouse/pull/56828) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix flattening existing Nested columns during ADD COLUMN [#56830](https://github.com/ClickHouse/ClickHouse/pull/56830) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix allow cr end of line for csv [#56901](https://github.com/ClickHouse/ClickHouse/pull/56901) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Fix `tryBase64Decode` with invalid input [#56913](https://github.com/ClickHouse/ClickHouse/pull/56913) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix generating deep nested columns in CapnProto/Protobuf schemas [#56941](https://github.com/ClickHouse/ClickHouse/pull/56941) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Prevent incompatible ALTER of projection columns [#56948](https://github.com/ClickHouse/ClickHouse/pull/56948) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix sqlite file path validation [#56984](https://github.com/ClickHouse/ClickHouse/pull/56984) ([San](https://github.com/santrancisco)).
|
||||
* S3Queue: fix metadata reference increment [#56990](https://github.com/ClickHouse/ClickHouse/pull/56990) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* S3Queue minor fix [#56999](https://github.com/ClickHouse/ClickHouse/pull/56999) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix file path validation for DatabaseFileSystem [#57029](https://github.com/ClickHouse/ClickHouse/pull/57029) ([San](https://github.com/santrancisco)).
|
||||
* Fix `fuzzBits` with `ARRAY JOIN` [#57033](https://github.com/ClickHouse/ClickHouse/pull/57033) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix Nullptr dereference in partial merge join with joined_subquery_re… [#57048](https://github.com/ClickHouse/ClickHouse/pull/57048) ([vdimir](https://github.com/vdimir)).
|
||||
* Fix race condition in RemoteSource [#57052](https://github.com/ClickHouse/ClickHouse/pull/57052) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Implement `bitHammingDistance` for big integers [#57073](https://github.com/ClickHouse/ClickHouse/pull/57073) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* S3-style links bug fix [#57075](https://github.com/ClickHouse/ClickHouse/pull/57075) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Fix JSON_QUERY function with multiple numeric paths [#57096](https://github.com/ClickHouse/ClickHouse/pull/57096) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Fix buffer overflow in Gorilla codec [#57107](https://github.com/ClickHouse/ClickHouse/pull/57107) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Close interserver connection on any exception before authentication [#57142](https://github.com/ClickHouse/ClickHouse/pull/57142) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix segfault after ALTER UPDATE with Nullable MATERIALIZED column [#57147](https://github.com/ClickHouse/ClickHouse/pull/57147) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix incorrect JOIN plan optimization with partially materialized normal projection [#57196](https://github.com/ClickHouse/ClickHouse/pull/57196) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Ignore comments when comparing column descriptions [#57259](https://github.com/ClickHouse/ClickHouse/pull/57259) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix `ReadonlyReplica` metric for all cases [#57267](https://github.com/ClickHouse/ClickHouse/pull/57267) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Background merges correctly use temporary data storage in the cache [#57275](https://github.com/ClickHouse/ClickHouse/pull/57275) ([vdimir](https://github.com/vdimir)).
|
||||
* Keeper fix for changelog and snapshots [#57299](https://github.com/ClickHouse/ClickHouse/pull/57299) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Ignore finished ON CLUSTER tasks if hostname changed [#57339](https://github.com/ClickHouse/ClickHouse/pull/57339) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* MergeTree mutations reuse source part index granularity [#57352](https://github.com/ClickHouse/ClickHouse/pull/57352) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* FS cache: add a limit for background download [#57424](https://github.com/ClickHouse/ClickHouse/pull/57424) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
|
||||
|
||||
### <a id="2310"></a> ClickHouse release 23.10, 2023-11-02
|
||||
|
||||
#### Backward Incompatible Change
|
||||
* There is no longer an option to automatically remove broken data parts. This closes [#55174](https://github.com/ClickHouse/ClickHouse/issues/55174). [#55184](https://github.com/ClickHouse/ClickHouse/pull/55184) ([Alexey Milovidov](https://github.com/alexey-milovidov)). [#55557](https://github.com/ClickHouse/ClickHouse/pull/55557) ([Jihyuk Bok](https://github.com/tomahawk28)).
|
||||
@ -39,7 +251,7 @@
|
||||
* Allow to drop cache for Protobuf format with `SYSTEM DROP SCHEMA FORMAT CACHE [FOR Protobuf]`. [#55064](https://github.com/ClickHouse/ClickHouse/pull/55064) ([Aleksandr Musorin](https://github.com/AVMusorin)).
|
||||
* Add external HTTP Basic authenticator. [#55199](https://github.com/ClickHouse/ClickHouse/pull/55199) ([Aleksei Filatov](https://github.com/aalexfvk)).
|
||||
* Added function `byteSwap` which reverses the bytes of unsigned integers. This is particularly useful for reversing values of types which are represented as unsigned integers internally such as IPv4. [#55211](https://github.com/ClickHouse/ClickHouse/pull/55211) ([Priyansh Agrawal](https://github.com/Priyansh121096)).
|
||||
* Added function `formatQuery()` which returns a formatted version (possibly spanning multiple lines) of a SQL query string. Also added function `formatQuerySingleLine()` which does the same but the returned string will not contain linebreaks. [#55239](https://github.com/ClickHouse/ClickHouse/pull/55239) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
|
||||
* Added function `formatQuery` which returns a formatted version (possibly spanning multiple lines) of a SQL query string. Also added function `formatQuerySingleLine` which does the same but the returned string will not contain linebreaks. [#55239](https://github.com/ClickHouse/ClickHouse/pull/55239) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
|
||||
* Added `DWARF` input format that reads debug symbols from an ELF executable/library/object file. [#55450](https://github.com/ClickHouse/ClickHouse/pull/55450) ([Michael Kolupaev](https://github.com/al13n321)).
|
||||
* Allow to save unparsed records and errors in RabbitMQ, NATS and FileLog engines. Add virtual columns `_error` and `_raw_message`(for NATS and RabbitMQ), `_raw_record` (for FileLog) that are filled when ClickHouse fails to parse new record. The behaviour is controlled under storage settings `nats_handle_error_mode` for NATS, `rabbitmq_handle_error_mode` for RabbitMQ, `handle_error_mode` for FileLog similar to `kafka_handle_error_mode`. If it's set to `default`, en exception will be thrown when ClickHouse fails to parse a record, if it's set to `stream`, erorr and raw record will be saved into virtual columns. Closes [#36035](https://github.com/ClickHouse/ClickHouse/issues/36035). [#55477](https://github.com/ClickHouse/ClickHouse/pull/55477) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Keeper client improvement: add `get_all_children_number command` that returns number of all children nodes under a specific path. [#55485](https://github.com/ClickHouse/ClickHouse/pull/55485) ([guoxiaolong](https://github.com/guoxiaolongzte)).
|
||||
@ -74,11 +286,11 @@
|
||||
* Reduced memory consumption during loading of hierarchical dictionaries. [#55838](https://github.com/ClickHouse/ClickHouse/pull/55838) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* All dictionaries support setting `dictionary_use_async_executor`. [#55839](https://github.com/ClickHouse/ClickHouse/pull/55839) ([vdimir](https://github.com/vdimir)).
|
||||
* Prevent excesive memory usage when deserializing AggregateFunctionTopKGenericData. [#55947](https://github.com/ClickHouse/ClickHouse/pull/55947) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* On a Keeper with lots of watches AsyncMetrics threads can consume 100% of CPU for noticable time in `DB::KeeperStorage::getSessionsWithWatchesCount()`. The fix is to avoid traversing heavy `watches` and `list_watches` sets. [#56054](https://github.com/ClickHouse/ClickHouse/pull/56054) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Add setting `optimize_trivial_approximate_count_query` to use `count()` approximation for storage EmbeddedRocksDB. Enable trivial count for StorageJoin. [#55806](https://github.com/ClickHouse/ClickHouse/pull/55806) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* On a Keeper with lots of watches AsyncMetrics threads can consume 100% of CPU for noticable time in `DB::KeeperStorage::getSessionsWithWatchesCount`. The fix is to avoid traversing heavy `watches` and `list_watches` sets. [#56054](https://github.com/ClickHouse/ClickHouse/pull/56054) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Add setting `optimize_trivial_approximate_count_query` to use `count` approximation for storage EmbeddedRocksDB. Enable trivial count for StorageJoin. [#55806](https://github.com/ClickHouse/ClickHouse/pull/55806) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
|
||||
#### Improvement
|
||||
* Functions `toDayOfWeek()` (MySQL alias: `DAYOFWEEK()`), `toYearWeek()` (`YEARWEEK()`) and `toWeek()` (`WEEK()`) now supports `String` arguments. This makes its behavior consistent with MySQL's behavior. [#55589](https://github.com/ClickHouse/ClickHouse/pull/55589) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Functions `toDayOfWeek` (MySQL alias: `DAYOFWEEK`), `toYearWeek` (`YEARWEEK`) and `toWeek` (`WEEK`) now supports `String` arguments. This makes its behavior consistent with MySQL's behavior. [#55589](https://github.com/ClickHouse/ClickHouse/pull/55589) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Introduced setting `date_time_overflow_behavior` with possible values `ignore`, `throw`, `saturate` that controls the overflow behavior when converting from Date, Date32, DateTime64, Integer or Float to Date, Date32, DateTime or DateTime64. [#55696](https://github.com/ClickHouse/ClickHouse/pull/55696) ([Andrey Zvonov](https://github.com/zvonand)).
|
||||
* Implement query parameters support for `ALTER TABLE ... ACTION PARTITION [ID] {parameter_name:ParameterType}`. Merges [#49516](https://github.com/ClickHouse/ClickHouse/issues/49516). Closes [#49449](https://github.com/ClickHouse/ClickHouse/issues/49449). [#55604](https://github.com/ClickHouse/ClickHouse/pull/55604) ([alesapin](https://github.com/alesapin)).
|
||||
* Print processor ids in a prettier manner in EXPLAIN. [#48852](https://github.com/ClickHouse/ClickHouse/pull/48852) ([Vlad Seliverstov](https://github.com/behebot)).
|
||||
@ -112,7 +324,7 @@
|
||||
* Functions `(add|subtract)(Year|Quarter|Month|Week|Day|Hour|Minute|Second|Millisecond|Microsecond|Nanosecond)` now support string-encoded date arguments, e.g. `SELECT addDays('2023-10-22', 1)`. This increases compatibility with MySQL and is needed by Tableau Online. [#55869](https://github.com/ClickHouse/ClickHouse/pull/55869) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* The setting `apply_deleted_mask` when disabled allows to read rows that where marked as deleted by lightweight DELETE queries. This is useful for debugging. [#55952](https://github.com/ClickHouse/ClickHouse/pull/55952) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Allow skipping `null` values when serailizing Tuple to json objects, which makes it possible to keep compatiability with Spark's `to_json` function, which is also useful for gluten. [#55956](https://github.com/ClickHouse/ClickHouse/pull/55956) ([李扬](https://github.com/taiyang-li)).
|
||||
* Functions `(add|sub)Date()` now support string-encoded date arguments, e.g. `SELECT addDate('2023-10-22 11:12:13', INTERVAL 5 MINUTE)`. The same support for string-encoded date arguments is added to the plus and minus operators, e.g. `SELECT '2023-10-23' + INTERVAL 1 DAY`. This increases compatibility with MySQL and is needed by Tableau Online. [#55960](https://github.com/ClickHouse/ClickHouse/pull/55960) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Functions `(add|sub)Date` now support string-encoded date arguments, e.g. `SELECT addDate('2023-10-22 11:12:13', INTERVAL 5 MINUTE)`. The same support for string-encoded date arguments is added to the plus and minus operators, e.g. `SELECT '2023-10-23' + INTERVAL 1 DAY`. This increases compatibility with MySQL and is needed by Tableau Online. [#55960](https://github.com/ClickHouse/ClickHouse/pull/55960) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Allow unquoted strings with CR (`\r`) in CSV format. Closes [#39930](https://github.com/ClickHouse/ClickHouse/issues/39930). [#56046](https://github.com/ClickHouse/ClickHouse/pull/56046) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Allow to run `clickhouse-keeper` using embedded config. [#56086](https://github.com/ClickHouse/ClickHouse/pull/56086) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Set limit of the maximum configuration value for `queued.min.messages` to avoid problem with start fetching data with Kafka. [#56121](https://github.com/ClickHouse/ClickHouse/pull/56121) ([Stas Morozov](https://github.com/r3b-fish)).
|
||||
@ -133,7 +345,7 @@
|
||||
* Fixed bug of `match` function (regex) with pattern containing alternation produces incorrect key condition. Closes #53222. [#54696](https://github.com/ClickHouse/ClickHouse/pull/54696) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
|
||||
* Fix 'Cannot find column' in read-in-order optimization with ARRAY JOIN [#51746](https://github.com/ClickHouse/ClickHouse/pull/51746) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Support missed experimental `Object(Nullable(json))` subcolumns in query. [#54052](https://github.com/ClickHouse/ClickHouse/pull/54052) ([zps](https://github.com/VanDarkholme7)).
|
||||
* Re-add fix for `accurateCastOrNull()` [#54629](https://github.com/ClickHouse/ClickHouse/pull/54629) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
|
||||
* Re-add fix for `accurateCastOrNull` [#54629](https://github.com/ClickHouse/ClickHouse/pull/54629) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
|
||||
* Fix detecting `DEFAULT` for columns of a Distributed table created without AS [#55060](https://github.com/ClickHouse/ClickHouse/pull/55060) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Proper cleanup in case of exception in ctor of ShellCommandSource [#55103](https://github.com/ClickHouse/ClickHouse/pull/55103) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Fix deadlock in LDAP assigned role update [#55119](https://github.com/ClickHouse/ClickHouse/pull/55119) ([Julian Maicher](https://github.com/jmaicher)).
|
||||
@ -191,7 +403,7 @@
|
||||
* Add error handler to odbc-bridge [#56185](https://github.com/ClickHouse/ClickHouse/pull/56185) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
|
||||
|
||||
|
||||
### ClickHouse release 23.9, 2023-09-28
|
||||
### <a id="239"></a> ClickHouse release 23.9, 2023-09-28
|
||||
|
||||
#### Backward Incompatible Change
|
||||
* Remove the `status_info` configuration option and dictionaries status from the default Prometheus handler. [#54090](https://github.com/ClickHouse/ClickHouse/pull/54090) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
@ -213,7 +425,7 @@
|
||||
* Add function `decodeHTMLComponent`. [#54097](https://github.com/ClickHouse/ClickHouse/pull/54097) ([Bharat Nallan](https://github.com/bharatnc)).
|
||||
* Added `peak_threads_usage` to query_log table. [#54335](https://github.com/ClickHouse/ClickHouse/pull/54335) ([Alexey Gerasimchuck](https://github.com/Demilivor)).
|
||||
* Add `SHOW FUNCTIONS` support to clickhouse-client. [#54337](https://github.com/ClickHouse/ClickHouse/pull/54337) ([Julia Kartseva](https://github.com/wat-ze-hex)).
|
||||
* Added function `toDaysSinceYearZero` with alias `TO_DAYS` (for compatibility with MySQL) which returns the number of days passed since `0001-01-01` (in Proleptic Gregorian Calendar). [#54479](https://github.com/ClickHouse/ClickHouse/pull/54479) ([Robert Schulze](https://github.com/rschu1ze)). Function `toDaysSinceYearZero()` now supports arguments of type `DateTime` and `DateTime64`. [#54856](https://github.com/ClickHouse/ClickHouse/pull/54856) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Added function `toDaysSinceYearZero` with alias `TO_DAYS` (for compatibility with MySQL) which returns the number of days passed since `0001-01-01` (in Proleptic Gregorian Calendar). [#54479](https://github.com/ClickHouse/ClickHouse/pull/54479) ([Robert Schulze](https://github.com/rschu1ze)). Function `toDaysSinceYearZero` now supports arguments of type `DateTime` and `DateTime64`. [#54856](https://github.com/ClickHouse/ClickHouse/pull/54856) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Added functions `YYYYMMDDtoDate`, `YYYYMMDDtoDate32`, `YYYYMMDDhhmmssToDateTime` and `YYYYMMDDhhmmssToDateTime64`. They convert a date or date with time encoded as integer (e.g. 20230911) into a native date or date with time. As such, they provide the opposite functionality of existing functions `YYYYMMDDToDate`, `YYYYMMDDToDateTime`, `YYYYMMDDhhmmddToDateTime`, `YYYYMMDDhhmmddToDateTime64`. [#54509](https://github.com/ClickHouse/ClickHouse/pull/54509) ([Quanfa Fu](https://github.com/dentiscalprum)) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Add several string distance functions, including `byteHammingDistance`, `editDistance`. [#54935](https://github.com/ClickHouse/ClickHouse/pull/54935) ([flynn](https://github.com/ucasfl)).
|
||||
* Allow specifying the expiration date and, optionally, the time for user credentials with `VALID UNTIL datetime` clause. [#51261](https://github.com/ClickHouse/ClickHouse/pull/51261) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
@ -229,7 +441,7 @@
|
||||
* An optimization to rewrite `COUNT(DISTINCT ...)` and various `uniq` variants to `count` if it is selected from a subquery with GROUP BY. [#52082](https://github.com/ClickHouse/ClickHouse/pull/52082) [#52645](https://github.com/ClickHouse/ClickHouse/pull/52645) ([JackyWoo](https://github.com/JackyWoo)).
|
||||
* Remove manual calls to `mmap/mremap/munmap` and delegate all this work to `jemalloc` - and it slightly improves performance. [#52792](https://github.com/ClickHouse/ClickHouse/pull/52792) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Fixed high in CPU consumption when working with NATS. [#54399](https://github.com/ClickHouse/ClickHouse/pull/54399) ([Vasilev Pyotr](https://github.com/vahpetr)).
|
||||
* Since we use separate instructions for executing `toString()` with datetime argument, it is possible to improve performance a bit for non-datetime arguments and have some parts of the code cleaner. Follows up [#53680](https://github.com/ClickHouse/ClickHouse/issues/53680). [#54443](https://github.com/ClickHouse/ClickHouse/pull/54443) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Since we use separate instructions for executing `toString` with datetime argument, it is possible to improve performance a bit for non-datetime arguments and have some parts of the code cleaner. Follows up [#53680](https://github.com/ClickHouse/ClickHouse/issues/53680). [#54443](https://github.com/ClickHouse/ClickHouse/pull/54443) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Instead of serializing json elements into a `std::stringstream`, this PR try to put the serialization result into `ColumnString` direclty. [#54613](https://github.com/ClickHouse/ClickHouse/pull/54613) ([lgbo](https://github.com/lgbo-ustc)).
|
||||
* Enable ORDER BY optimization for reading data in corresponding order from a MergeTree table in case that the table is behind a view. [#54628](https://github.com/ClickHouse/ClickHouse/pull/54628) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Improve JSON SQL functions by reusing `GeneratorJSONPath` and removing several shared pointers. [#54735](https://github.com/ClickHouse/ClickHouse/pull/54735) ([lgbo](https://github.com/lgbo-ustc)).
|
||||
@ -479,7 +691,7 @@
|
||||
* The `domainRFC` function now supports IPv6 in square brackets. [#53506](https://github.com/ClickHouse/ClickHouse/pull/53506) ([Chen768959](https://github.com/Chen768959)).
|
||||
* Use longer timeout for S3 CopyObject requests, which are used in backups. [#53533](https://github.com/ClickHouse/ClickHouse/pull/53533) ([Michael Kolupaev](https://github.com/al13n321)).
|
||||
* Added server setting `aggregate_function_group_array_max_element_size`. This setting is used to limit array size for `groupArray` function at serialization. The default value is `16777215`. [#53550](https://github.com/ClickHouse/ClickHouse/pull/53550) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* `SCHEMA()` was added as alias for `DATABASE()` to improve MySQL compatibility. [#53587](https://github.com/ClickHouse/ClickHouse/pull/53587) ([Daniël van Eeden](https://github.com/dveeden)).
|
||||
* `SCHEMA` was added as alias for `DATABASE` to improve MySQL compatibility. [#53587](https://github.com/ClickHouse/ClickHouse/pull/53587) ([Daniël van Eeden](https://github.com/dveeden)).
|
||||
* Add asynchronous metrics about tables in the system database. For example, `TotalBytesOfMergeTreeTablesSystem`. This closes [#53603](https://github.com/ClickHouse/ClickHouse/issues/53603). [#53604](https://github.com/ClickHouse/ClickHouse/pull/53604) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* SQL editor in the Play UI and Dashboard will not use Grammarly. [#53614](https://github.com/ClickHouse/ClickHouse/pull/53614) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* As expert-level settings, it is now possible to (1) configure the size_ratio (i.e. the relative size of the protected queue) of the [index] mark/uncompressed caches, (2) configure the cache policy of the index mark and index uncompressed caches. [#53657](https://github.com/ClickHouse/ClickHouse/pull/53657) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
@ -741,7 +953,7 @@
|
||||
* Disable expression templates for time intervals [#52335](https://github.com/ClickHouse/ClickHouse/pull/52335) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix `apply_snapshot` in Keeper [#52358](https://github.com/ClickHouse/ClickHouse/pull/52358) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Update build-osx.md [#52377](https://github.com/ClickHouse/ClickHouse/pull/52377) ([AlexBykovski](https://github.com/AlexBykovski)).
|
||||
* Fix `countSubstrings()` hang with empty needle and a column haystack [#52409](https://github.com/ClickHouse/ClickHouse/pull/52409) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* Fix `countSubstrings` hang with empty needle and a column haystack [#52409](https://github.com/ClickHouse/ClickHouse/pull/52409) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* Fix normal projection with merge table [#52432](https://github.com/ClickHouse/ClickHouse/pull/52432) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix possible double-free in Aggregator [#52439](https://github.com/ClickHouse/ClickHouse/pull/52439) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Fixed inserting into Buffer engine [#52440](https://github.com/ClickHouse/ClickHouse/pull/52440) ([Vasily Nemkov](https://github.com/Enmk)).
|
||||
@ -1585,7 +1797,7 @@
|
||||
* A couple of segfaults have been reported around `c-ares`. They were introduced in my previous pull requests. I have fixed them with the help of Alexander Tokmakov. [#45629](https://github.com/ClickHouse/ClickHouse/pull/45629) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Fix key description when encountering duplicate primary keys. This can happen in projections. See [#45590](https://github.com/ClickHouse/ClickHouse/issues/45590) for details. [#45686](https://github.com/ClickHouse/ClickHouse/pull/45686) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Set compression method and level for backup Closes [#45690](https://github.com/ClickHouse/ClickHouse/issues/45690). [#45737](https://github.com/ClickHouse/ClickHouse/pull/45737) ([Pradeep Chhetri](https://github.com/chhetripradeep)).
|
||||
* Should use `select_query_typed.limitByOffset()` instead of `select_query_typed.limitOffset()`. [#45817](https://github.com/ClickHouse/ClickHouse/pull/45817) ([刘陶峰](https://github.com/taofengliu)).
|
||||
* Should use `select_query_typed.limitByOffset` instead of `select_query_typed.limitOffset`. [#45817](https://github.com/ClickHouse/ClickHouse/pull/45817) ([刘陶峰](https://github.com/taofengliu)).
|
||||
* When use experimental analyzer, queries like `SELECT number FROM numbers(100) LIMIT 10 OFFSET 10;` get wrong results (empty result for this sql). That is caused by an unnecessary offset step added by planner. [#45822](https://github.com/ClickHouse/ClickHouse/pull/45822) ([刘陶峰](https://github.com/taofengliu)).
|
||||
* Backward compatibility - allow implicit narrowing conversion from UInt64 to IPv4 - required for "INSERT ... VALUES ..." expression. [#45865](https://github.com/ClickHouse/ClickHouse/pull/45865) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
|
||||
* Bugfix IPv6 parser for mixed ip4 address with missed first octet (like `::.1.2.3`). [#45871](https://github.com/ClickHouse/ClickHouse/pull/45871) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
|
||||
|
||||
@ -33,10 +33,9 @@ curl https://clickhouse.com/ | sh
|
||||
|
||||
## Upcoming Events
|
||||
|
||||
* [**ClickHouse Meetup in San Francisco**](https://www.meetup.com/clickhouse-silicon-valley-meetup-group/events/296334923/) - Nov 14
|
||||
* [**ClickHouse Meetup in Singapore**](https://www.meetup.com/clickhouse-singapore-meetup-group/events/296334976/) - Nov 15
|
||||
* [**ClickHouse Meetup in Berlin**](https://www.meetup.com/clickhouse-berlin-user-group/events/296488501/) - Nov 30
|
||||
* [**ClickHouse Meetup in NYC**](https://www.meetup.com/clickhouse-new-york-user-group/events/296488779/) - Dec 11
|
||||
* [**ClickHouse Meetup in Sydney**](https://www.meetup.com/clickhouse-sydney-user-group/events/297638812/) - Dec 12
|
||||
* [**ClickHouse Meetup in Boston**](https://www.meetup.com/clickhouse-boston-user-group/events/296488840/) - Dec 12
|
||||
|
||||
Also, keep an eye out for upcoming meetups around the world. Somewhere else you want us to be? Please feel free to reach out to tyler <at> clickhouse <dot> com.
|
||||
|
||||
@ -13,6 +13,7 @@ The following versions of ClickHouse server are currently being supported with s
|
||||
|
||||
| Version | Supported |
|
||||
|:-|:-|
|
||||
| 23.11 | ✔️ |
|
||||
| 23.10 | ✔️ |
|
||||
| 23.9 | ✔️ |
|
||||
| 23.8 | ✔️ |
|
||||
|
||||
@ -2,11 +2,11 @@
|
||||
|
||||
# NOTE: has nothing common with DBMS_TCP_PROTOCOL_VERSION,
|
||||
# only DBMS_TCP_PROTOCOL_VERSION should be incremented on protocol changes.
|
||||
SET(VERSION_REVISION 54480)
|
||||
SET(VERSION_REVISION 54481)
|
||||
SET(VERSION_MAJOR 23)
|
||||
SET(VERSION_MINOR 11)
|
||||
SET(VERSION_MINOR 12)
|
||||
SET(VERSION_PATCH 1)
|
||||
SET(VERSION_GITHASH 13adae0e42fd48de600486fc5d4b64d39f80c43e)
|
||||
SET(VERSION_DESCRIBE v23.11.1.1-testing)
|
||||
SET(VERSION_STRING 23.11.1.1)
|
||||
SET(VERSION_GITHASH 05bc8ef1e02b9c7332f08091775b255d191341bf)
|
||||
SET(VERSION_DESCRIBE v23.12.1.1-testing)
|
||||
SET(VERSION_STRING 23.12.1.1)
|
||||
# end of autochange
|
||||
|
||||
2
contrib/CMakeLists.txt
vendored
2
contrib/CMakeLists.txt
vendored
@ -44,7 +44,6 @@ else ()
|
||||
endif ()
|
||||
add_contrib (miniselect-cmake miniselect)
|
||||
add_contrib (pdqsort-cmake pdqsort)
|
||||
add_contrib (pocketfft-cmake pocketfft)
|
||||
add_contrib (crc32-vpmsum-cmake crc32-vpmsum)
|
||||
add_contrib (sparsehash-c11-cmake sparsehash-c11)
|
||||
add_contrib (abseil-cpp-cmake abseil-cpp)
|
||||
@ -156,6 +155,7 @@ add_contrib (nuraft-cmake NuRaft)
|
||||
add_contrib (fast_float-cmake fast_float)
|
||||
add_contrib (datasketches-cpp-cmake datasketches-cpp)
|
||||
add_contrib (incbin-cmake incbin)
|
||||
add_contrib (sqids-cpp-cmake sqids-cpp)
|
||||
|
||||
option(ENABLE_NLP "Enable NLP functions support" ${ENABLE_LIBRARIES})
|
||||
if (ENABLE_NLP)
|
||||
|
||||
@ -385,9 +385,25 @@ endif ()
|
||||
|
||||
include("${ClickHouse_SOURCE_DIR}/contrib/google-protobuf-cmake/protobuf_generate.cmake")
|
||||
|
||||
# These files needs to be installed to make it possible that users can use well-known protobuf types
|
||||
set(google_proto_files
|
||||
${protobuf_source_dir}/src/google/protobuf/any.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/api.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/descriptor.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/duration.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/empty.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/field_mask.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/source_context.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/struct.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/timestamp.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/type.proto
|
||||
${protobuf_source_dir}/src/google/protobuf/wrappers.proto
|
||||
)
|
||||
|
||||
add_library(_protobuf INTERFACE)
|
||||
target_link_libraries(_protobuf INTERFACE _libprotobuf)
|
||||
target_include_directories(_protobuf INTERFACE "${Protobuf_INCLUDE_DIR}")
|
||||
set_target_properties(_protobuf PROPERTIES google_proto_files "${google_proto_files}")
|
||||
add_library(ch_contrib::protobuf ALIAS _protobuf)
|
||||
|
||||
add_library(_protoc INTERFACE)
|
||||
|
||||
@ -33,7 +33,7 @@ target_include_directories(cxxabi SYSTEM BEFORE
|
||||
PRIVATE $<BUILD_INTERFACE:${LIBCXXABI_SOURCE_DIR}/../libcxx/include>
|
||||
PRIVATE $<BUILD_INTERFACE:${LIBCXXABI_SOURCE_DIR}/../libcxx/src>
|
||||
)
|
||||
target_compile_definitions(cxxabi PRIVATE -D_LIBCPP_BUILDING_LIBRARY)
|
||||
target_compile_definitions(cxxabi PRIVATE -D_LIBCPP_BUILDING_LIBRARY -DHAS_THREAD_LOCAL)
|
||||
target_compile_options(cxxabi PRIVATE -nostdinc++ -fno-sanitize=undefined -Wno-macro-redefined) # If we don't disable UBSan, infinite recursion happens in dynamic_cast.
|
||||
target_link_libraries(cxxabi PUBLIC unwind)
|
||||
|
||||
|
||||
2
contrib/libpqxx
vendored
2
contrib/libpqxx
vendored
@ -1 +1 @@
|
||||
Subproject commit 791d68fd89902835133c50435e380ec7a73271b7
|
||||
Subproject commit c995193a3a14d71f4711f1f421f65a1a1db64640
|
||||
1
contrib/pocketfft
vendored
1
contrib/pocketfft
vendored
@ -1 +0,0 @@
|
||||
Subproject commit 9efd4da52cf8d28d14531d14e43ad9d913807546
|
||||
@ -1,10 +0,0 @@
|
||||
option (ENABLE_POCKETFFT "Enable pocketfft" ${ENABLE_LIBRARIES})
|
||||
|
||||
if (NOT ENABLE_POCKETFFT)
|
||||
message(STATUS "Not using pocketfft")
|
||||
return()
|
||||
endif()
|
||||
|
||||
add_library(_pocketfft INTERFACE)
|
||||
target_include_directories(_pocketfft INTERFACE ${ClickHouse_SOURCE_DIR}/contrib/pocketfft)
|
||||
add_library(ch_contrib::pocketfft ALIAS _pocketfft)
|
||||
2
contrib/qpl
vendored
2
contrib/qpl
vendored
@ -1 +1 @@
|
||||
Subproject commit faaf19350459c076e66bb5df11743c3fade59b73
|
||||
Subproject commit a61bdd845fd7ca363b2bcc55454aa520dfcd8298
|
||||
1
contrib/sqids-cpp
vendored
Submodule
1
contrib/sqids-cpp
vendored
Submodule
@ -0,0 +1 @@
|
||||
Subproject commit 3756e537d4d48cc0dd4176801fe19f99601439b0
|
||||
14
contrib/sqids-cpp-cmake/CMakeLists.txt
Normal file
14
contrib/sqids-cpp-cmake/CMakeLists.txt
Normal file
@ -0,0 +1,14 @@
|
||||
option(ENABLE_SQIDS "Enable sqids support" ${ENABLE_LIBRARIES})
|
||||
if ((NOT ENABLE_SQIDS))
|
||||
message (STATUS "Not using sqids")
|
||||
return()
|
||||
endif()
|
||||
|
||||
set (SQIDS_SOURCE_DIR "${ClickHouse_SOURCE_DIR}/contrib/sqids-cpp")
|
||||
set (SQIDS_INCLUDE_DIR "${SQIDS_SOURCE_DIR}/include")
|
||||
|
||||
add_library(_sqids INTERFACE)
|
||||
target_include_directories(_sqids SYSTEM INTERFACE ${SQIDS_INCLUDE_DIR})
|
||||
|
||||
add_library(ch_contrib::sqids ALIAS _sqids)
|
||||
target_compile_definitions(_sqids INTERFACE ENABLE_SQIDS)
|
||||
@ -34,7 +34,7 @@ RUN arch=${TARGETARCH:-amd64} \
|
||||
# lts / testing / prestable / etc
|
||||
ARG REPO_CHANNEL="stable"
|
||||
ARG REPOSITORY="https://packages.clickhouse.com/tgz/${REPO_CHANNEL}"
|
||||
ARG VERSION="23.10.5.20"
|
||||
ARG VERSION="23.11.1.2711"
|
||||
ARG PACKAGES="clickhouse-keeper"
|
||||
|
||||
# user/group precreated explicitly with fixed uid/gid on purpose.
|
||||
|
||||
@ -32,7 +32,7 @@ RUN arch=${TARGETARCH:-amd64} \
|
||||
# lts / testing / prestable / etc
|
||||
ARG REPO_CHANNEL="stable"
|
||||
ARG REPOSITORY="https://packages.clickhouse.com/tgz/${REPO_CHANNEL}"
|
||||
ARG VERSION="23.10.5.20"
|
||||
ARG VERSION="23.11.1.2711"
|
||||
ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
|
||||
|
||||
# user/group precreated explicitly with fixed uid/gid on purpose.
|
||||
|
||||
@ -30,7 +30,7 @@ RUN sed -i "s|http://archive.ubuntu.com|${apt_archive}|g" /etc/apt/sources.list
|
||||
|
||||
ARG REPO_CHANNEL="stable"
|
||||
ARG REPOSITORY="deb [signed-by=/usr/share/keyrings/clickhouse-keyring.gpg] https://packages.clickhouse.com/deb ${REPO_CHANNEL} main"
|
||||
ARG VERSION="23.10.5.20"
|
||||
ARG VERSION="23.11.1.2711"
|
||||
ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
|
||||
|
||||
# set non-empty deb_location_url url to create a docker image
|
||||
@ -83,7 +83,7 @@ RUN if ! clickhouse local -q "SELECT ''" > /dev/null 2>&1; then \
|
||||
&& GNUPGHOME="$GNUPGHOME" gpg --no-default-keyring \
|
||||
--keyring /usr/share/keyrings/clickhouse-keyring.gpg \
|
||||
--keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 8919F6BD2B48D754 \
|
||||
&& rm -r "$GNUPGHOME" \
|
||||
&& rm -rf "$GNUPGHOME" \
|
||||
&& chmod +r /usr/share/keyrings/clickhouse-keyring.gpg \
|
||||
&& echo "${REPOSITORY}" > /etc/apt/sources.list.d/clickhouse.list \
|
||||
&& echo "installing from repository: ${REPOSITORY}" \
|
||||
|
||||
@ -20,7 +20,8 @@ RUN apt-get update --yes \
|
||||
RUN pip3 install \
|
||||
numpy \
|
||||
pyodbc \
|
||||
deepdiff
|
||||
deepdiff \
|
||||
sqlglot
|
||||
|
||||
ARG odbc_repo="https://github.com/ClickHouse/clickhouse-odbc.git"
|
||||
|
||||
@ -35,7 +36,7 @@ RUN git clone --recursive ${odbc_repo} \
|
||||
&& odbcinst -i -s -l -f /clickhouse-odbc/packaging/odbc.ini.sample
|
||||
|
||||
ENV TZ=Europe/Amsterdam
|
||||
ENV MAX_RUN_TIME=900
|
||||
ENV MAX_RUN_TIME=9000
|
||||
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
|
||||
|
||||
ARG sqllogic_test_repo="https://github.com/gregrahn/sqllogictest.git"
|
||||
|
||||
@ -75,6 +75,20 @@ function run_tests()
|
||||
cat /test_output/statements-test/check_status.tsv >> /test_output/check_status.tsv
|
||||
cat /test_output/statements-test/test_results.tsv >> /test_output/test_results.tsv
|
||||
tar -zcvf statements-check.tar.gz statements-test 1>/dev/null
|
||||
|
||||
mkdir -p /test_output/complete-test
|
||||
/clickhouse-tests/sqllogic/runner.py \
|
||||
--log-file /test_output/runner-complete-test.log \
|
||||
--log-level info \
|
||||
complete-test \
|
||||
--input-dir /sqllogictest \
|
||||
--out-dir /test_output/complete-test \
|
||||
2>&1 \
|
||||
| ts '%Y-%m-%d %H:%M:%S'
|
||||
|
||||
cat /test_output/complete-test/check_status.tsv >> /test_output/check_status.tsv
|
||||
cat /test_output/complete-test/test_results.tsv >> /test_output/test_results.tsv
|
||||
tar -zcvf complete-check.tar.gz complete-test 1>/dev/null
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
@ -19,10 +19,14 @@ dpkg -i package_folder/clickhouse-common-static-dbg_*.deb
|
||||
dpkg -i package_folder/clickhouse-server_*.deb
|
||||
dpkg -i package_folder/clickhouse-client_*.deb
|
||||
|
||||
echo "$BUGFIX_VALIDATE_CHECK"
|
||||
|
||||
# Check that the tools are available under short names
|
||||
ch --query "SELECT 1" || exit 1
|
||||
chl --query "SELECT 1" || exit 1
|
||||
chc --version || exit 1
|
||||
if [[ -z "$BUGFIX_VALIDATE_CHECK" ]]; then
|
||||
ch --query "SELECT 1" || exit 1
|
||||
chl --query "SELECT 1" || exit 1
|
||||
chc --version || exit 1
|
||||
fi
|
||||
|
||||
ln -s /usr/share/clickhouse-test/clickhouse-test /usr/bin/clickhouse-test
|
||||
|
||||
@ -46,6 +50,16 @@ fi
|
||||
|
||||
config_logs_export_cluster /etc/clickhouse-server/config.d/system_logs_export.yaml
|
||||
|
||||
if [[ -n "$BUGFIX_VALIDATE_CHECK" ]] && [[ "$BUGFIX_VALIDATE_CHECK" -eq 1 ]]; then
|
||||
sudo cat /etc/clickhouse-server/config.d/zookeeper.xml \
|
||||
| sed "/<use_compression>1<\/use_compression>/d" \
|
||||
> /etc/clickhouse-server/config.d/zookeeper.xml.tmp
|
||||
sudo mv /etc/clickhouse-server/config.d/zookeeper.xml.tmp /etc/clickhouse-server/config.d/zookeeper.xml
|
||||
|
||||
# it contains some new settings, but we can safely remove it
|
||||
rm /etc/clickhouse-server/users.d/s3_cache_new.xml
|
||||
fi
|
||||
|
||||
# For flaky check we also enable thread fuzzer
|
||||
if [ "$NUM_TRIES" -gt "1" ]; then
|
||||
export THREAD_FUZZER_CPU_TIME_PERIOD_US=1000
|
||||
|
||||
@ -191,6 +191,12 @@ sudo cat /etc/clickhouse-server/config.d/logger_trace.xml \
|
||||
> /etc/clickhouse-server/config.d/logger_trace.xml.tmp
|
||||
mv /etc/clickhouse-server/config.d/logger_trace.xml.tmp /etc/clickhouse-server/config.d/logger_trace.xml
|
||||
|
||||
# Randomize async_load_databases
|
||||
if [ $(( $(date +%-d) % 2 )) -eq 1 ]; then
|
||||
sudo echo "<clickhouse><async_load_databases>true</async_load_databases></clickhouse>" \
|
||||
> /etc/clickhouse-server/config.d/enable_async_load_databases.xml
|
||||
fi
|
||||
|
||||
start
|
||||
|
||||
stress --hung-check --drop-databases --output-folder test_output --skip-func-tests "$SKIP_TESTS_OPTION" --global-time-limit 1200 \
|
||||
|
||||
@ -79,6 +79,7 @@ rm /etc/clickhouse-server/config.d/merge_tree.xml
|
||||
rm /etc/clickhouse-server/config.d/enable_wait_for_shutdown_replicated_tables.xml
|
||||
rm /etc/clickhouse-server/users.d/nonconst_timezone.xml
|
||||
rm /etc/clickhouse-server/users.d/s3_cache_new.xml
|
||||
rm /etc/clickhouse-server/users.d/replicated_ddl_entry.xml
|
||||
|
||||
start
|
||||
stop
|
||||
@ -116,6 +117,7 @@ rm /etc/clickhouse-server/config.d/merge_tree.xml
|
||||
rm /etc/clickhouse-server/config.d/enable_wait_for_shutdown_replicated_tables.xml
|
||||
rm /etc/clickhouse-server/users.d/nonconst_timezone.xml
|
||||
rm /etc/clickhouse-server/users.d/s3_cache_new.xml
|
||||
rm /etc/clickhouse-server/users.d/replicated_ddl_entry.xml
|
||||
|
||||
start
|
||||
|
||||
|
||||
525
docs/changelogs/v23.11.1.2711-stable.md
Normal file
525
docs/changelogs/v23.11.1.2711-stable.md
Normal file
@ -0,0 +1,525 @@
|
||||
---
|
||||
sidebar_position: 1
|
||||
sidebar_label: 2023
|
||||
---
|
||||
|
||||
# 2023 Changelog
|
||||
|
||||
### ClickHouse release v23.11.1.2711-stable (05bc8ef1e02) FIXME as compared to v23.10.1.1976-stable (13adae0e42f)
|
||||
|
||||
#### Backward Incompatible Change
|
||||
* Formatters `%l`/`%k`/`%c` in function `parseDateTime()` are now able to parse hours/months without leading zeros, e.g. `select parseDateTime('2023-11-26 8:14', '%F %k:%i')` now works. Set `parsedatetime_parse_without_leading_zeros = 0` to restore the previous behavior which required two digits. Function `formatDateTime` is now also able to print hours/months without leading zeros. This is controlled by setting `formatdatetime_format_without_leading_zeros` but off by default to not break existing use cases. [#55872](https://github.com/ClickHouse/ClickHouse/pull/55872) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* You can no longer use the aggregate function `avgWeighted` with arguments of type `Decimal`. Workaround: convert arguments to `Float64`. This closes [#43928](https://github.com/ClickHouse/ClickHouse/issues/43928). This closes [#31768](https://github.com/ClickHouse/ClickHouse/issues/31768). This closes [#56435](https://github.com/ClickHouse/ClickHouse/issues/56435). If you have used this function inside materialized views or projections with `Decimal` arguments, contact support@clickhouse.com. Fixed error in aggregate function `sumMap` and made it slower around 1.5..2 times. It does not matter because the function is garbage anyway. This closes [#54955](https://github.com/ClickHouse/ClickHouse/issues/54955). This closes [#53134](https://github.com/ClickHouse/ClickHouse/issues/53134). This closes [#55148](https://github.com/ClickHouse/ClickHouse/issues/55148). Fix a bug in function `groupArraySample` - it used the same random seed in case more than one aggregate state is generated in a query. [#56350](https://github.com/ClickHouse/ClickHouse/pull/56350) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* The default ClickHouse server configuration file has enabled `access_management` (user manipulation by SQL queries) and `named_collection_control` (manipulation of named collection by SQL queries) for the `default` user by default. This closes [#56482](https://github.com/ClickHouse/ClickHouse/issues/56482). [#56619](https://github.com/ClickHouse/ClickHouse/pull/56619) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Multiple improvements for RESPECT/IGNORE NULLS. [#57189](https://github.com/ClickHouse/ClickHouse/pull/57189) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Remove optimization optimize_move_functions_out_of_any. [#57190](https://github.com/ClickHouse/ClickHouse/pull/57190) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
|
||||
#### New Feature
|
||||
* Added server setting `async_load_databases` for asynchronous loading of databases and tables. Speeds up the server start time. Applies to databases with Ordinary, Atomic and Replicated engines. Their tables load metadata asynchronously. Query to a table increases the priority of the load job and waits for it to be done. Added table `system.async_loader`. [#49351](https://github.com/ClickHouse/ClickHouse/pull/49351) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* 1. Add function `extractPlainRanges` to `KeyCondition`. 2. Add some useful functions to `Range` 3. Add `PlainRanges` who represent a serious of ranges that ordered and no overlapping. 4. Add `NumbersRangedSource` who can accurately return user selected numbers. [#50909](https://github.com/ClickHouse/ClickHouse/pull/50909) ([JackyWoo](https://github.com/JackyWoo)).
|
||||
* Add system table `blob_storage_log`. [#52918](https://github.com/ClickHouse/ClickHouse/pull/52918) ([vdimir](https://github.com/vdimir)).
|
||||
* Use statistic to order prewhere conditions better. [#53240](https://github.com/ClickHouse/ClickHouse/pull/53240) ([Han Fei](https://github.com/hanfei1991)).
|
||||
* Added a new aggregation function `groupArraySorted(n)(value)` which returns an array with the n first values from a field value sorted by itself. [#53562](https://github.com/ClickHouse/ClickHouse/pull/53562) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Added support for compression in keeper protocol. Can be enabled on clickhouse by using this flag `use_compression` inside `zookeeper`. resolves [#49507](https://github.com/ClickHouse/ClickHouse/issues/49507). [#54957](https://github.com/ClickHouse/ClickHouse/pull/54957) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Add ClickHouse setting to disable tunneling for HTTPS requests over HTTP proxy. [#55033](https://github.com/ClickHouse/ClickHouse/pull/55033) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Introduce the feature `storage_metadata_write_full_object_key`. If it is set as `true` then metadata files are written with new format VERSION_FULL_OBJECT_KEY. With that format CH stores full remote object key in the metadata file. [#55566](https://github.com/ClickHouse/ClickHouse/pull/55566) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Add new settings and syntax to protect named collections' fields from being overridden. This is meant to prevent a malicious user from obtaining unauthorized access to secrets. [#55782](https://github.com/ClickHouse/ClickHouse/pull/55782) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
|
||||
* Add `hostname` column to all system log tables;. [#55894](https://github.com/ClickHouse/ClickHouse/pull/55894) ([Bharat Nallan](https://github.com/bharatnc)).
|
||||
* Add `CHECK ALL TABLES` query. [#56022](https://github.com/ClickHouse/ClickHouse/pull/56022) ([vdimir](https://github.com/vdimir)).
|
||||
* Added function `fromDaysSinceYearZero()` which is similar to MySQL's `FROM_DAYS`. E.g. `SELECT fromDaysSinceYearZero(739136)` returns `2023-09-08`. [#56088](https://github.com/ClickHouse/ClickHouse/pull/56088) ([Joanna Hulboj](https://github.com/jh0x)).
|
||||
* Implemented series period detect method using FFT in pocketFFT lib. [#56171](https://github.com/ClickHouse/ClickHouse/pull/56171) ([Bhavna Jindal](https://github.com/bhavnajindal)).
|
||||
* Add an external Python tool to view backups and to extract information from them without using ClickHouse. [#56268](https://github.com/ClickHouse/ClickHouse/pull/56268) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* ... [#56275](https://github.com/ClickHouse/ClickHouse/pull/56275) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* This pull request implements new setting called `preferred_projection_name`. If it is set to a non-empty string, the specified projection would be used if possible. [#56309](https://github.com/ClickHouse/ClickHouse/pull/56309) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* S3 adaptive timeout means that first attempt made with low send and receive timeouts. [#56314](https://github.com/ClickHouse/ClickHouse/pull/56314) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Add 4-letter command for yielding/resigning leadership (https://github.com/ClickHouse/ClickHouse/issues/56352). [#56354](https://github.com/ClickHouse/ClickHouse/pull/56354) ([Pradeep Chhetri](https://github.com/chhetripradeep)).
|
||||
* Added a new SQL function, "arrayRandomSample(arr, k)" which returns a sample of k elements from the input array. Similar functionality could previously be achieved only with less convenient syntax, e.g. "SELECT arrayReduce('groupArraySample(3)', range(10))". [#56416](https://github.com/ClickHouse/ClickHouse/pull/56416) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Added support for `float16` type data to use in `.npy` files. Closes [#56344](https://github.com/ClickHouse/ClickHouse/issues/56344). [#56424](https://github.com/ClickHouse/ClickHouse/pull/56424) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Added system view `information_schema.statistics` for better compatibility with Tableau Online. [#56425](https://github.com/ClickHouse/ClickHouse/pull/56425) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Add function `getClientHTTPHeader` for fetching values header values set in the HTTP request. [#56488](https://github.com/ClickHouse/ClickHouse/pull/56488) ([凌涛](https://github.com/lingtaolf)).
|
||||
* Add a new table function named `fuzzJSON` with rows containing perturbed versions of the source JSON string with random variations. [#56490](https://github.com/ClickHouse/ClickHouse/pull/56490) ([Julia Kartseva](https://github.com/jkartseva)).
|
||||
* Add `system.symbols` table useful for introspection of the binary. [#56548](https://github.com/ClickHouse/ClickHouse/pull/56548) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add 4-letter command for yielding/resigning leadership. [#56620](https://github.com/ClickHouse/ClickHouse/pull/56620) ([Pradeep Chhetri](https://github.com/chhetripradeep)).
|
||||
* Configurable dashboards. Queries for charts are now loaded using a query, which by default uses a new `system.dashboards` table. [#56771](https://github.com/ClickHouse/ClickHouse/pull/56771) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* Introduce `fileCluster` table function. [#56868](https://github.com/ClickHouse/ClickHouse/pull/56868) ([Andrey Zvonov](https://github.com/zvonand)).
|
||||
* Add `_size` virtual column with file size in bytes to `s3/file/hdfs/url/azureBlobStorage` engines. [#57126](https://github.com/ClickHouse/ClickHouse/pull/57126) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Expose the number of errors occurred on a server since last restart from the Prometheus endpoint. [#57209](https://github.com/ClickHouse/ClickHouse/pull/57209) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Added a new SQL function `sqid` to generate Sqids (https://sqids.org/), example: `SELECT sqid(125, 126)`. [#57442](https://github.com/ClickHouse/ClickHouse/pull/57442) ([awakeljw](https://github.com/awakeljw)).
|
||||
|
||||
#### Performance Improvement
|
||||
* Support window functions parallel evaluation. Fixes [#34688](https://github.com/ClickHouse/ClickHouse/issues/34688). [#39631](https://github.com/ClickHouse/ClickHouse/pull/39631) ([Dmitry Novik](https://github.com/novikd)).
|
||||
* Increase the default value of `max_concurrent_queries` from 100 to 1000. This makes sense when there is a large number of connecting clients, which are slowly sending or receiving data, so the server is not limited by CPU, or when the number of CPU cores is larger than 100. Also, enable the concurrency control by default, and set the desired number of query processing threads in total as twice the number of CPU cores. It improves performance in scenarios with a very large number of concurrent queries. [#46927](https://github.com/ClickHouse/ClickHouse/pull/46927) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fixed filtering by `IN(...)` condition for `Merge` table engine. [#54905](https://github.com/ClickHouse/ClickHouse/pull/54905) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* An improvement which takes place when cache is full and there are big reads. [#55158](https://github.com/ClickHouse/ClickHouse/pull/55158) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Add ability to disable checksums for S3 to avoid excessive input file read (this new behavior could be enabled with `s3_disable_checksum=true`). [#55559](https://github.com/ClickHouse/ClickHouse/pull/55559) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Now we read synchronously from remote tables when data is in page cache (like we do for local tables). It is faster, doesn't require synchronisation inside thread pool, doesn't hesitate to do `seek`-s on local fs and reduces cpu wait. [#55841](https://github.com/ClickHouse/ClickHouse/pull/55841) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* ... This PR follows [#55929](https://github.com/ClickHouse/ClickHouse/issues/55929), it will bring about 30% speedup. - reduce the reserved memory - reduce the `resize` call. [#55957](https://github.com/ClickHouse/ClickHouse/pull/55957) ([lgbo](https://github.com/lgbo-ustc)).
|
||||
* The performance experiments of **OnTime** on the ICX device (Intel Xeon Platinum 8380 CPU, 80 cores, 160 threads) show that this change could bring the improvements of **7.4%, 5.9%, 4.7%, 3.0%, and 4.6%** to the QPS of the query Q2, Q3, Q4, Q5 and Q6 respectively while having no impact on others. [#56079](https://github.com/ClickHouse/ClickHouse/pull/56079) ([Zhiguo Zhou](https://github.com/ZhiguoZh)).
|
||||
* Limit the number of threads busy inside the query profiler. If there are more - they will skip profiling. [#56105](https://github.com/ClickHouse/ClickHouse/pull/56105) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* WindowTransform decrease amount of virtual function calls. [#56120](https://github.com/ClickHouse/ClickHouse/pull/56120) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Allow recursive tuple field pruning in ORC to speed up scaning. [#56122](https://github.com/ClickHouse/ClickHouse/pull/56122) ([李扬](https://github.com/taiyang-li)).
|
||||
* This pull request provides countRows support for Npy data format. Now with setting `optimize_count_from_files=1` queries like `select count() from file(data.npy)` will work much more fast because of caching the results. [#56304](https://github.com/ClickHouse/ClickHouse/pull/56304) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Queries with aggregation and a large number of streams will use less amount of memory during the plan's construction. [#57074](https://github.com/ClickHouse/ClickHouse/pull/57074) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Improve performance of executing queries for use cases with many users. [#57106](https://github.com/ClickHouse/ClickHouse/pull/57106) ([Andrej Hoos](https://github.com/adikus)).
|
||||
* Trivial improvement on array join, reuse some intermediate results. [#57183](https://github.com/ClickHouse/ClickHouse/pull/57183) ([李扬](https://github.com/taiyang-li)).
|
||||
* There are cases when stack unwinding was slow. [#57221](https://github.com/ClickHouse/ClickHouse/pull/57221) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Now we use default read pool for reading from external storage when `max_streams = 1`. It is beneficial when read prefetches are enabled. [#57334](https://github.com/ClickHouse/ClickHouse/pull/57334) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
|
||||
#### Improvement
|
||||
* Engine `Merge` filters the records according to the row policies of the underlying tables. [#50209](https://github.com/ClickHouse/ClickHouse/pull/50209) ([Ilya Golshtein](https://github.com/ilejn)).
|
||||
* Add a setting `max_execution_time_leaf` to limit the execution time on shard for distributed query, and `timeout_overflow_mode_leaf` to control the behaviour if timeout happens. [#51823](https://github.com/ClickHouse/ClickHouse/pull/51823) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Fix possible postgresql logical replication conversion_error when using MaterializedPostgreSQL. [#53721](https://github.com/ClickHouse/ClickHouse/pull/53721) ([takakawa](https://github.com/takakawa)).
|
||||
* Set `background_fetches_pool_size` to 16, background_schedule_pool_size to 512 that is better for production usage with frequent small insertions. [#54327](https://github.com/ClickHouse/ClickHouse/pull/54327) ([Denny Crane](https://github.com/den-crane)).
|
||||
* While read data from a csv format file, and at end of line is'\r' , which not followed by '\n', then we will enconter the exception as below ``` Cannot parse CSV format: found \r (CR) not followed by \n (LF). Line must end by \n (LF) or \r\n (CR LF) or \n\r.: ``` In clickhouse, the csv end of line must be \n or \r\n or \n\r, so the \r must be followed by \n , but in some suitation, the csv input data is abnormal, like above, \r is at end of line. [#54340](https://github.com/ClickHouse/ClickHouse/pull/54340) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Update arrow library to release-13.0.0 that supports new encodings. Closes [#44505](https://github.com/ClickHouse/ClickHouse/issues/44505). [#54800](https://github.com/ClickHouse/ClickHouse/pull/54800) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Improve performance of ON CLUSTER queries by removing heavy system calls to get all network interfaces when looking for local ip address in the DDL entry hosts list. [#54909](https://github.com/ClickHouse/ClickHouse/pull/54909) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Keeper improvement: improve memory-usage during startup by delaying log preprocessing. [#55660](https://github.com/ClickHouse/ClickHouse/pull/55660) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fixed accounting of memory allocated before attaching thread to a query or a user. [#56089](https://github.com/ClickHouse/ClickHouse/pull/56089) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* ClickHouse keeper reports its running availability zone at `/keeper/availability-zone` path, when running on AWS environment. [#56104](https://github.com/ClickHouse/ClickHouse/pull/56104) ([Jianfei Hu](https://github.com/incfly)).
|
||||
* Add support for LARGE_LIST with Arrow. [#56118](https://github.com/ClickHouse/ClickHouse/pull/56118) ([edef](https://github.com/edef1c)).
|
||||
* Improved performance of glob matching for `file` and `hdfs` storages. [#56141](https://github.com/ClickHouse/ClickHouse/pull/56141) ([Andrey Zvonov](https://github.com/zvonand)).
|
||||
* Allow manual compaction of `EmbeddedRocksDB` via `OPTIMIZE` query. [#56225](https://github.com/ClickHouse/ClickHouse/pull/56225) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Posting lists in inverted indexes are now compressed which reduces their size by 10-30%. [#56226](https://github.com/ClickHouse/ClickHouse/pull/56226) ([Harry Lee](https://github.com/HarryLeeIBM)).
|
||||
* Add ability to specify BlockBasedTableOptions for EmbeddedRocksDB. [#56264](https://github.com/ClickHouse/ClickHouse/pull/56264) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* `SHOW COLUMNS` now displays MySQL's equivalent data type name when the connection was made through the MySQL protocol. Previously, this was the case when setting `use_mysql_types_in_show_columns = 1`. The setting is retained but made obsolete. [#56277](https://github.com/ClickHouse/ClickHouse/pull/56277) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fixed possible `The local set of parts of table doesn't look like the set of parts in ZooKeeper` error if server was restarted just after `TRUNCATE` or `DROP PARTITION`. [#56282](https://github.com/ClickHouse/ClickHouse/pull/56282) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Parallelise `BackupEntriesCollector`. [#56312](https://github.com/ClickHouse/ClickHouse/pull/56312) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fixed handling of non-const query strings in functions `formatQuery()`/ `formatQuerySingleLine()`. Also added `OrNull` variants of both functions that return a NULL when a query cannot be parsed instead of throwing an exception. [#56327](https://github.com/ClickHouse/ClickHouse/pull/56327) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Support create and materialized index in the same alter query, also support modity TTL and materialize TTL in the same query. Closes [#55651](https://github.com/ClickHouse/ClickHouse/issues/55651). [#56331](https://github.com/ClickHouse/ClickHouse/pull/56331) ([flynn](https://github.com/ucasfl)).
|
||||
* Enable adding new disk to storage configuration without restart. [#56367](https://github.com/ClickHouse/ClickHouse/pull/56367) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Allow backup of materialized view with dropped inner table instead of failing the backup. [#56387](https://github.com/ClickHouse/ClickHouse/pull/56387) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Queries to `system.replicas` initiate requests to ZooKeeper when certain columns are queried. When there are thousands of tables these requests might produce a considerable load on ZooKeeper. If there are multiple simultaneous queries to `system.replicas` they do same requests multiple times. The change is to "deduplicate" requests from concurrent queries. [#56420](https://github.com/ClickHouse/ClickHouse/pull/56420) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Add transition from reading key to reading quoted key when double quotes are found. [#56423](https://github.com/ClickHouse/ClickHouse/pull/56423) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Fix transfer query to MySQL compatible query. [#56456](https://github.com/ClickHouse/ClickHouse/pull/56456) ([flynn](https://github.com/ucasfl)).
|
||||
* Add support for backing up and restoring tables using KeeperMap engine. [#56460](https://github.com/ClickHouse/ClickHouse/pull/56460) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* 404 response for CompleteMultipartUpload has to be rechecked. Operation could be done on server even if client got timeout or other network errors. The next retry of CompleteMultipartUpload receives 404 response. If the object key exists that operation is considered as successful. [#56475](https://github.com/ClickHouse/ClickHouse/pull/56475) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Enable the HTTP OPTIONS method by default - it simplifies requesting ClickHouse from a web browser. [#56483](https://github.com/ClickHouse/ClickHouse/pull/56483) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* The value for `dns_max_consecutive_failures` was changed by mistake in [#46550](https://github.com/ClickHouse/ClickHouse/issues/46550) - this is reverted and adjusted to a better value. Also, increased the HTTP keep-alive timeout to a reasonable value from production. [#56485](https://github.com/ClickHouse/ClickHouse/pull/56485) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Load base backups lazily (a base backup won't be loaded until it's needed). Also add some log message and profile events for backups. [#56516](https://github.com/ClickHouse/ClickHouse/pull/56516) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Setting `query_cache_store_results_of_queries_with_nondeterministic_functions` (with values `false` or `true`) was marked obsolete. It was replaced by setting `query_cache_nondeterministic_function_handling`, a three-valued enum that controls how the query cache handles queries with non-deterministic functions: a) throw an exception (default behavior), b) save the non-deterministic query result regardless, or c) ignore, i.e. don't throw an exception and don't cache the result. [#56519](https://github.com/ClickHouse/ClickHouse/pull/56519) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Rewrite equality with `is null` check in JOIN ON section. *Analyzer only*. [#56538](https://github.com/ClickHouse/ClickHouse/pull/56538) ([vdimir](https://github.com/vdimir)).
|
||||
* Function`concat` now supports arbitrary argument types (instead of only String and FixedString arguments). This makes it behave more similar to MySQL `concat` implementation. For example, `SELECT concat('ab', 42)` now returns `ab42`. [#56540](https://github.com/ClickHouse/ClickHouse/pull/56540) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Allow getting cache configuration from 'named_collection' section in config or from sql created named collection. [#56541](https://github.com/ClickHouse/ClickHouse/pull/56541) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Update `query_masking_rules` when reloading the config ([#56449](https://github.com/ClickHouse/ClickHouse/issues/56449)). [#56573](https://github.com/ClickHouse/ClickHouse/pull/56573) ([Mikhail Koviazin](https://github.com/mkmkme)).
|
||||
* Make removeoutdatedtables() less aggressive with unsuccessful postgres connection. [#56609](https://github.com/ClickHouse/ClickHouse/pull/56609) ([jsc0218](https://github.com/jsc0218)).
|
||||
* Currenting setting takes too much time to connnect to PG when URL is not right, so the relevant query stucks there and get cancelled. [#56648](https://github.com/ClickHouse/ClickHouse/pull/56648) ([jsc0218](https://github.com/jsc0218)).
|
||||
* ClickHouse keeper reports its running availability zone at `/keeper/availability-zone` path. This can be configured via `<availability_zone><value>us-west-1a</value></availability_zone>`. [#56715](https://github.com/ClickHouse/ClickHouse/pull/56715) ([Jianfei Hu](https://github.com/incfly)).
|
||||
* Do not allow tables on different replicas have different aggregate functions in SimpleAggregateFunction columns. [#56724](https://github.com/ClickHouse/ClickHouse/pull/56724) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Add support for the [well-known Protobuf types](https://protobuf.dev/reference/protobuf/google.protobuf/) in the Protobuf format. [#56741](https://github.com/ClickHouse/ClickHouse/pull/56741) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
|
||||
* Keeper improvement: disable compressed logs by default in Keeper. [#56763](https://github.com/ClickHouse/ClickHouse/pull/56763) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Add config setting `wait_dictionaries_load_at_startup`:. [#56782](https://github.com/ClickHouse/ClickHouse/pull/56782) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* There was a potential vulnerability in previous ClickHouse versions: if a user has connected and unsuccessfully tried to authenticate with the "interserver secret" method, the server didn't terminate the connection immediately but continued to receive and ignore the leftover packets from the client. While these packets are ignored, they are still parsed, and if they use a compression method with another known vulnerability, it will lead to exploitation of it without authentication. This issue was found with [ClickHouse Bug Bounty Program](https://github.com/ClickHouse/ClickHouse/issues/38986) by https://twitter.com/malacupa. [#56794](https://github.com/ClickHouse/ClickHouse/pull/56794) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fetching a part waits when that part is fully committed on remote replica. It is better not send part in PreActive state. In case of zero copy this is mandatory restriction. [#56808](https://github.com/ClickHouse/ClickHouse/pull/56808) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Implement user-level setting `alter_move_to_space_execute_async` which allow to execute queries `ALTER TABLE ... MOVE PARTITION|PART TO DISK|VOLUME` asynchronously. The size of pool for background executions is controlled by `background_move_pool_size`. Default behavior is synchronous execution. Fixes [#47643](https://github.com/ClickHouse/ClickHouse/issues/47643). [#56809](https://github.com/ClickHouse/ClickHouse/pull/56809) ([alesapin](https://github.com/alesapin)).
|
||||
* Able to filter by engine when scanning system.tables, avoid unnecessary (potentially time-consuming) connection. [#56813](https://github.com/ClickHouse/ClickHouse/pull/56813) ([jsc0218](https://github.com/jsc0218)).
|
||||
* Show `total_bytes` and `total_rows` in system tables for RocksDB storage. [#56816](https://github.com/ClickHouse/ClickHouse/pull/56816) ([Aleksandr Musorin](https://github.com/AVMusorin)).
|
||||
* Allow basic commands in ALTER for TEMPORARY tables. [#56892](https://github.com/ClickHouse/ClickHouse/pull/56892) ([Sergey](https://github.com/icuken)).
|
||||
* Lz4 compression. Buffer compressed block in a rare case when out buffer capacity is not enough for writing compressed block directly to out's buffer. [#56938](https://github.com/ClickHouse/ClickHouse/pull/56938) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Add metrics for the number of queued jobs, which is useful for the IO thread pool. [#56958](https://github.com/ClickHouse/ClickHouse/pull/56958) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add a setting for PostgreSQL table engine setting in the config file Added a check for the setting Added documentation around the additional setting. [#56959](https://github.com/ClickHouse/ClickHouse/pull/56959) ([Peignon Melvyn](https://github.com/melvynator)).
|
||||
* Run interpreter with `only_analyze` flag in getsampleblock method. [#56972](https://github.com/ClickHouse/ClickHouse/pull/56972) ([Mikhail Artemenko](https://github.com/Michicosun)).
|
||||
* Add a new `MergeTree` setting `add_implicit_sign_column_constraint_for_collapsing_engine` (disabled by default). When enabled, it adds an implicit CHECK constraint for `CollapsingMergeTree` tables that restricts the value of the `Sign` column to be only -1 or 1. [#56701](https://github.com/ClickHouse/ClickHouse/issues/56701). [#56986](https://github.com/ClickHouse/ClickHouse/pull/56986) ([Kevin Mingtarja](https://github.com/kevinmingtarja)).
|
||||
* Function `concat()` can now be called with a single argument, e.g., `SELECT concat('abc')`. This makes its behavior more consistent with MySQL's concat implementation. [#57000](https://github.com/ClickHouse/ClickHouse/pull/57000) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Signs all `x-amz-*` headers as required by AWS S3 docs. [#57001](https://github.com/ClickHouse/ClickHouse/pull/57001) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Function `fromDaysSinceYearZero` (alias: `FROM_DAYS`) can now be used with unsigned and signed integer types (previously, it had to be an unsigned integer). This improve compatibility with 3rd party tools such as Tableau Online. [#57002](https://github.com/ClickHouse/ClickHouse/pull/57002) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Add system.s3queue_log to default config. [#57036](https://github.com/ClickHouse/ClickHouse/pull/57036) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Change the default for `wait_dictionaries_load_at_startup` to true, and use this setting only if `dictionaries_lazy_load` is false. [#57133](https://github.com/ClickHouse/ClickHouse/pull/57133) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Check dictionary source type on creation even if `dictionaries_lazy_load` is enabled. [#57134](https://github.com/ClickHouse/ClickHouse/pull/57134) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Plan-level optimizations can now be enabled/disabled individually. Previously, it was only possible to disable them all. The setting which previously did that (`query_plan_enable_optimizations`) is retained and can still be used to disable all optimizations. [#57152](https://github.com/ClickHouse/ClickHouse/pull/57152) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* The server's exit code will correspond to the exception code. For example, if the server cannot start due to memory limit, it will exit with the code 241 = MEMORY_LIMIT_EXCEEDED. In previous versions, the exit code for exceptions was always 70 = Poco::Util::ExitCode::EXIT_SOFTWARE. [#57153](https://github.com/ClickHouse/ClickHouse/pull/57153) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Do not demangle and symbolize stack frames from __functional c++ header. [#57201](https://github.com/ClickHouse/ClickHouse/pull/57201) ([Mike Kot](https://github.com/myrrc)).
|
||||
* It is now possible to refer to ALIAS column in index (non-primary-key) definitions (issue [#55650](https://github.com/ClickHouse/ClickHouse/issues/55650)). Example: `CREATE TABLE tab(col UInt32, col_alias ALIAS col + 1, INDEX idx (col_alias) TYPE minmax) ENGINE = MergeTree ORDER BY col;`. [#57220](https://github.com/ClickHouse/ClickHouse/pull/57220) ([flynn](https://github.com/ucasfl)).
|
||||
* HTTP server page `/dashboard` now supports charts with multiple lines. [#57236](https://github.com/ClickHouse/ClickHouse/pull/57236) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* This pr gives possibility to use suffixes (K, M, G, T, E) along with the amount of memory to be used. Closes [#56879](https://github.com/ClickHouse/ClickHouse/issues/56879). [#57273](https://github.com/ClickHouse/ClickHouse/pull/57273) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Bumped Intel QPL (used by codec `DEFLATE_QPL`) from v1.2.0 to v1.3.1 . Also fixed a bug in case of BOF (Block On Fault) = 0, changed to handle page faults by falling back to SW path. [#57291](https://github.com/ClickHouse/ClickHouse/pull/57291) ([jasperzhu](https://github.com/jinjunzh)).
|
||||
* Make alter materialized view non experimental and deprecate `allow_experimental_alter_materialized_view_structure` setting. Fixes [#15206](https://github.com/ClickHouse/ClickHouse/issues/15206). [#57311](https://github.com/ClickHouse/ClickHouse/pull/57311) ([alesapin](https://github.com/alesapin)).
|
||||
* Increase default `replicated_deduplication_window` of MergeTree settings from 100 to 1k. [#57335](https://github.com/ClickHouse/ClickHouse/pull/57335) ([sichenzhao](https://github.com/sichenzhao)).
|
||||
* Stop using `INCONSISTENT_METADATA_FOR_BACKUP` that much. If possible prefer to continue scanning instead of stopping and starting the scanning for backup from the beginning. [#57385](https://github.com/ClickHouse/ClickHouse/pull/57385) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Introduce the limit for the maximum number of table projections (default 25). [#57491](https://github.com/ClickHouse/ClickHouse/pull/57491) ([Julia Kartseva](https://github.com/jkartseva)).
|
||||
* Enable `async_block_ids_cache` by default for `async_inserts` deduplication. [#57513](https://github.com/ClickHouse/ClickHouse/pull/57513) ([alesapin](https://github.com/alesapin)).
|
||||
|
||||
#### Build/Testing/Packaging Improvement
|
||||
* Enable temporary_data_in_cache in s3 tests in CI. [#48425](https://github.com/ClickHouse/ClickHouse/pull/48425) ([vdimir](https://github.com/vdimir)).
|
||||
* Run sqllogic test. [#56078](https://github.com/ClickHouse/ClickHouse/pull/56078) ([Han Fei](https://github.com/hanfei1991)).
|
||||
* Add a new build option `SANITIZE_COVERAGE`. If it is enabled, the code is instrumented to track the coverage. The collected information is available inside ClickHouse with: (1) a new function `coverage` that returns an array of unique addresses in the code found after the previous coverage reset; (2) `SYSTEM RESET COVERAGE` query that resets the accumulated data. This allows us to compare the coverage of different tests, including differential code coverage. Continuation of [#20539](https://github.com/ClickHouse/ClickHouse/issues/20539). [#56102](https://github.com/ClickHouse/ClickHouse/pull/56102) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* In [#54043](https://github.com/ClickHouse/ClickHouse/issues/54043) the setup plan started to appear in the logs. It should be only in the `runner_get_all_tests.log` only. As well, send the failed infrastructure event to CI db. [#56214](https://github.com/ClickHouse/ClickHouse/pull/56214) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Some of the stack frames might not be resolved when collecting stacks. In such cases the raw address might be helpful. [#56267](https://github.com/ClickHouse/ClickHouse/pull/56267) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Add an option to disable libssh. [#56333](https://github.com/ClickHouse/ClickHouse/pull/56333) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add automatic check that there are no large translation units. [#56559](https://github.com/ClickHouse/ClickHouse/pull/56559) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Lower the size of the single-binary distribution. This closes [#55181](https://github.com/ClickHouse/ClickHouse/issues/55181). [#56617](https://github.com/ClickHouse/ClickHouse/pull/56617) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Make `clickhouse-local` and `clickhouse-client` available under short names (`ch`, `chl`, `chc`) for usability. [#56634](https://github.com/ClickHouse/ClickHouse/pull/56634) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Information about the sizes of every translation unit and binary file after each build will be sent to the CI database in ClickHouse Cloud. This closes [#56107](https://github.com/ClickHouse/ClickHouse/issues/56107). [#56636](https://github.com/ClickHouse/ClickHouse/pull/56636) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Certain files of "Apache Arrow" library (which we use only for non-essential things like parsing the arrow format) were rebuilt all the time regardless of the build cache. This is fixed. [#56657](https://github.com/ClickHouse/ClickHouse/pull/56657) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Avoid recompiling translation units depending on the autogenerated source file about version. [#56660](https://github.com/ClickHouse/ClickHouse/pull/56660) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Do not fetch changed submodules in the builder container. [#56689](https://github.com/ClickHouse/ClickHouse/pull/56689) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Tracing data of the linker invocations will be sent to the CI database in ClickHouse Cloud. [#56725](https://github.com/ClickHouse/ClickHouse/pull/56725) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Use DWARF 5 debug symbols for the clickhouse binary (was DWARF 4 previously). [#56770](https://github.com/ClickHouse/ClickHouse/pull/56770) ([Michael Kolupaev](https://github.com/al13n321)).
|
||||
* Optimized build size further by removing unused code from external libraries. [#56786](https://github.com/ClickHouse/ClickHouse/pull/56786) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Set memory usage for client (`1G`) to address problems like this: https://s3.amazonaws.com/clickhouse-test-reports/0/f1bf3f1fc39f520871ec878d815e515e12fd3e7b/fuzzer_astfuzzertsan/report.html. [#56873](https://github.com/ClickHouse/ClickHouse/pull/56873) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* There was an attempt to have the proper listing in [#44311](https://github.com/ClickHouse/ClickHouse/issues/44311), but the fix itself was in the wrong place, so it's still broken. See an [example](https://github.com/ClickHouse/ClickHouse/actions/runs/6897342568/job/18781001022#step:8:25). [#56989](https://github.com/ClickHouse/ClickHouse/pull/56989) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Fixed the memory leak in integration test of postgres dictionary. The case of network partition is not correctly handled at the time of the repo pulled years ago. [#57231](https://github.com/ClickHouse/ClickHouse/pull/57231) ([jsc0218](https://github.com/jsc0218)).
|
||||
* Fix a test filename typo. [#57272](https://github.com/ClickHouse/ClickHouse/pull/57272) ([jsc0218](https://github.com/jsc0218)).
|
||||
* Fix issue caught in https://github.com/docker-library/official-images/pull/15846. [#57571](https://github.com/ClickHouse/ClickHouse/pull/57571) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
|
||||
#### Bug Fix (user-visible misbehavior in an official stable release)
|
||||
|
||||
* Fix analyzer - insertion from select with subquery referencing insertion table should process only insertion block. [#50857](https://github.com/ClickHouse/ClickHouse/pull/50857) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
|
||||
* Setting JoinAlgorithm respect specified order [#51745](https://github.com/ClickHouse/ClickHouse/pull/51745) ([vdimir](https://github.com/vdimir)).
|
||||
* Keeper `reconfig`: add timeout before yielding/taking leadership [#53481](https://github.com/ClickHouse/ClickHouse/pull/53481) ([Mike Kot](https://github.com/myrrc)).
|
||||
* Fix incorrect header in grace hash join and filter pushdown [#53922](https://github.com/ClickHouse/ClickHouse/pull/53922) ([vdimir](https://github.com/vdimir)).
|
||||
* Select from system tables when table based on table function. [#55540](https://github.com/ClickHouse/ClickHouse/pull/55540) ([MikhailBurdukov](https://github.com/MikhailBurdukov)).
|
||||
* RFC: Fix "Cannot find column X in source stream" for Distributed queries with LIMIT BY [#55836](https://github.com/ClickHouse/ClickHouse/pull/55836) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Fix 'Cannot read from file:' while running client in a background [#55976](https://github.com/ClickHouse/ClickHouse/pull/55976) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix clickhouse-local exit on bad send_logs_level setting [#55994](https://github.com/ClickHouse/ClickHouse/pull/55994) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Bug fix explain ast with parameterized view [#56004](https://github.com/ClickHouse/ClickHouse/pull/56004) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Fix a crash during table loading on startup [#56232](https://github.com/ClickHouse/ClickHouse/pull/56232) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix ClickHouse-sourced dictionaries with an explicit query [#56236](https://github.com/ClickHouse/ClickHouse/pull/56236) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix segfault in signal handler for Keeper [#56266](https://github.com/ClickHouse/ClickHouse/pull/56266) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix incomplete query result for UNION in view() function. [#56274](https://github.com/ClickHouse/ClickHouse/pull/56274) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix inconsistency of "cast('0' as DateTime64(3))" and "cast('0' as Nullable(DateTime64(3)))" [#56286](https://github.com/ClickHouse/ClickHouse/pull/56286) ([李扬](https://github.com/taiyang-li)).
|
||||
* Fix rare race condition related to Memory allocation failure [#56303](https://github.com/ClickHouse/ClickHouse/pull/56303) ([alesapin](https://github.com/alesapin)).
|
||||
* Fix restore from backup with `flatten_nested` and `data_type_default_nullable` [#56306](https://github.com/ClickHouse/ClickHouse/pull/56306) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix crash in case of adding a column with type Object(JSON) [#56307](https://github.com/ClickHouse/ClickHouse/pull/56307) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Fix crash in filterPushDown [#56380](https://github.com/ClickHouse/ClickHouse/pull/56380) ([vdimir](https://github.com/vdimir)).
|
||||
* Fix restore from backup with mat view and dropped source table [#56383](https://github.com/ClickHouse/ClickHouse/pull/56383) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix segfault during Kerberos initialization [#56401](https://github.com/ClickHouse/ClickHouse/pull/56401) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix buffer overflow in T64 [#56434](https://github.com/ClickHouse/ClickHouse/pull/56434) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fix nullable primary key in final (2) [#56452](https://github.com/ClickHouse/ClickHouse/pull/56452) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix ON CLUSTER queries without database on initial node [#56484](https://github.com/ClickHouse/ClickHouse/pull/56484) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix startup failure due to TTL dependency [#56489](https://github.com/ClickHouse/ClickHouse/pull/56489) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix ALTER COMMENT queries ON CLUSTER [#56491](https://github.com/ClickHouse/ClickHouse/pull/56491) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix ALTER COLUMN with ALIAS [#56493](https://github.com/ClickHouse/ClickHouse/pull/56493) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix empty NAMED COLLECTIONs [#56494](https://github.com/ClickHouse/ClickHouse/pull/56494) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix two cases of projection analysis. [#56502](https://github.com/ClickHouse/ClickHouse/pull/56502) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix handling of aliases in query cache [#56545](https://github.com/ClickHouse/ClickHouse/pull/56545) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix conversion from `Nullable(Enum)` to `Nullable(String)` [#56644](https://github.com/ClickHouse/ClickHouse/pull/56644) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* More reliable log handling in Keeper [#56670](https://github.com/ClickHouse/ClickHouse/pull/56670) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix configuration merge for nodes with substitution attributes [#56694](https://github.com/ClickHouse/ClickHouse/pull/56694) ([Konstantin Bogdanov](https://github.com/thevar1able)).
|
||||
* Fix duplicate usage of table function input(). [#56695](https://github.com/ClickHouse/ClickHouse/pull/56695) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix: RabbitMQ OpenSSL dynamic loading issue [#56703](https://github.com/ClickHouse/ClickHouse/pull/56703) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Fix crash in GCD codec in case when zeros present in data [#56704](https://github.com/ClickHouse/ClickHouse/pull/56704) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Fix 'mutex lock failed: Invalid argument' in clickhouse-local during insert into function [#56710](https://github.com/ClickHouse/ClickHouse/pull/56710) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix Date text parsing in optimistic path [#56765](https://github.com/ClickHouse/ClickHouse/pull/56765) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix crash in FPC codec [#56795](https://github.com/ClickHouse/ClickHouse/pull/56795) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* DatabaseReplicated: fix DDL query timeout after recovering a replica [#56796](https://github.com/ClickHouse/ClickHouse/pull/56796) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix incorrect nullable columns reporting in MySQL binary protocol [#56799](https://github.com/ClickHouse/ClickHouse/pull/56799) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Support Iceberg metadata files for metastore tables [#56810](https://github.com/ClickHouse/ClickHouse/pull/56810) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix TSAN report under transform [#56817](https://github.com/ClickHouse/ClickHouse/pull/56817) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix SET query and SETTINGS formatting [#56825](https://github.com/ClickHouse/ClickHouse/pull/56825) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix failure to start due to table dependency in joinGet [#56828](https://github.com/ClickHouse/ClickHouse/pull/56828) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix flattening existing Nested columns during ADD COLUMN [#56830](https://github.com/ClickHouse/ClickHouse/pull/56830) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix allow cr end of line for csv [#56901](https://github.com/ClickHouse/ClickHouse/pull/56901) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Fix `tryBase64Decode()` with invalid input [#56913](https://github.com/ClickHouse/ClickHouse/pull/56913) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix generating deep nested columns in CapnProto/Protobuf schemas [#56941](https://github.com/ClickHouse/ClickHouse/pull/56941) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Prevent incompatible ALTER of projection columns [#56948](https://github.com/ClickHouse/ClickHouse/pull/56948) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix sqlite file path validation [#56984](https://github.com/ClickHouse/ClickHouse/pull/56984) ([San](https://github.com/santrancisco)).
|
||||
* S3Queue: fix metadata reference increment [#56990](https://github.com/ClickHouse/ClickHouse/pull/56990) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* S3Queue minor fix [#56999](https://github.com/ClickHouse/ClickHouse/pull/56999) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix file path validation for DatabaseFileSystem [#57029](https://github.com/ClickHouse/ClickHouse/pull/57029) ([San](https://github.com/santrancisco)).
|
||||
* Fix `fuzzBits` with `ARRAY JOIN` [#57033](https://github.com/ClickHouse/ClickHouse/pull/57033) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix Nullptr dereference in partial merge join with joined_subquery_re… [#57048](https://github.com/ClickHouse/ClickHouse/pull/57048) ([vdimir](https://github.com/vdimir)).
|
||||
* Fix race condition in RemoteSource [#57052](https://github.com/ClickHouse/ClickHouse/pull/57052) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Implement `bitHammingDistance` for big integers [#57073](https://github.com/ClickHouse/ClickHouse/pull/57073) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* S3-style links bug fix [#57075](https://github.com/ClickHouse/ClickHouse/pull/57075) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* Fix JSON_QUERY function with multiple numeric paths [#57096](https://github.com/ClickHouse/ClickHouse/pull/57096) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Fix buffer overflow in Gorilla codec [#57107](https://github.com/ClickHouse/ClickHouse/pull/57107) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Close interserver connection on any exception before authentication [#57142](https://github.com/ClickHouse/ClickHouse/pull/57142) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix segfault after ALTER UPDATE with Nullable MATERIALIZED column [#57147](https://github.com/ClickHouse/ClickHouse/pull/57147) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix incorrect JOIN plan optimization with partially materialized normal projection [#57196](https://github.com/ClickHouse/ClickHouse/pull/57196) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Ignore comments when comparing column descriptions [#57259](https://github.com/ClickHouse/ClickHouse/pull/57259) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix `ReadonlyReplica` metric for all cases [#57267](https://github.com/ClickHouse/ClickHouse/pull/57267) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Background merges correctly use temporary data storage in the cache [#57275](https://github.com/ClickHouse/ClickHouse/pull/57275) ([vdimir](https://github.com/vdimir)).
|
||||
* Keeper fix for changelog and snapshots [#57299](https://github.com/ClickHouse/ClickHouse/pull/57299) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Ignore finished ON CLUSTER tasks if hostname changed [#57339](https://github.com/ClickHouse/ClickHouse/pull/57339) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* MergeTree mutations reuse source part index granularity [#57352](https://github.com/ClickHouse/ClickHouse/pull/57352) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Fix function jsonMergePatch for partially const columns [#57379](https://github.com/ClickHouse/ClickHouse/pull/57379) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix ubsan error in `Arena` [#57407](https://github.com/ClickHouse/ClickHouse/pull/57407) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* fs cache: add limit for background download [#57424](https://github.com/ClickHouse/ClickHouse/pull/57424) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* bugfix: correctly parse SYSTEM STOP LISTEN TCP SECURE [#57483](https://github.com/ClickHouse/ClickHouse/pull/57483) ([joelynch](https://github.com/joelynch)).
|
||||
|
||||
#### NO CL ENTRY
|
||||
|
||||
* NO CL ENTRY: 'Revert "Add function `arrayRandomSample()`"'. [#56399](https://github.com/ClickHouse/ClickHouse/pull/56399) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Update README.md'. [#56549](https://github.com/ClickHouse/ClickHouse/pull/56549) ([Tyler Hannan](https://github.com/tylerhannan)).
|
||||
* NO CL ENTRY: 'Revert "FunctionSleep exception message fix"'. [#56591](https://github.com/ClickHouse/ClickHouse/pull/56591) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Inserting only non-duplicate chunks in MV"'. [#56598](https://github.com/ClickHouse/ClickHouse/pull/56598) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* NO CL ENTRY: 'Add new header for README with updated logo'. [#56607](https://github.com/ClickHouse/ClickHouse/pull/56607) ([Justin de Guzman](https://github.com/justindeguzman)).
|
||||
* NO CL ENTRY: 'Revert "Add /keeper/availability-zone node to allow server load balancing within AZ."'. [#56610](https://github.com/ClickHouse/ClickHouse/pull/56610) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Add 4-letter command for yielding/resigning leadership"'. [#56611](https://github.com/ClickHouse/ClickHouse/pull/56611) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'fix(docs): correct default value for output_format_parquet_compression_method to 'lz4''. [#56614](https://github.com/ClickHouse/ClickHouse/pull/56614) ([james-seymour-cubiko](https://github.com/james-seymour-cubiko)).
|
||||
* NO CL ENTRY: 'Update except.md'. [#56651](https://github.com/ClickHouse/ClickHouse/pull/56651) ([rondo_1895](https://github.com/yangguang1991)).
|
||||
* NO CL ENTRY: 'Revert "Add a setting max_execution_time_leaf to limit the execution time on shard for distributed query"'. [#56702](https://github.com/ClickHouse/ClickHouse/pull/56702) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* NO CL ENTRY: 'Revert "Better except for SSL authentication failure"'. [#56844](https://github.com/ClickHouse/ClickHouse/pull/56844) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* NO CL ENTRY: 'Revert "s3 adaptive timeouts"'. [#56992](https://github.com/ClickHouse/ClickHouse/pull/56992) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* NO CL ENTRY: 'Revert "Revert "s3 adaptive timeouts""'. [#56994](https://github.com/ClickHouse/ClickHouse/pull/56994) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* NO CL ENTRY: 'Revert "Resubmit 01600_parts_types_metrics test (possibly without flakiness)"'. [#57163](https://github.com/ClickHouse/ClickHouse/pull/57163) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Mark select() as harmful function"'. [#57195](https://github.com/ClickHouse/ClickHouse/pull/57195) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* NO CL ENTRY: 'Revert "Update Sentry"'. [#57229](https://github.com/ClickHouse/ClickHouse/pull/57229) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Add debugging info for 01600_parts_types_metrics on failures"'. [#57232](https://github.com/ClickHouse/ClickHouse/pull/57232) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Update date-time-functions.md"'. [#57329](https://github.com/ClickHouse/ClickHouse/pull/57329) ([Denny Crane](https://github.com/den-crane)).
|
||||
* NO CL ENTRY: 'Revert "add function getClientHTTPHeader"'. [#57510](https://github.com/ClickHouse/ClickHouse/pull/57510) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Add `sqid()` function"'. [#57511](https://github.com/ClickHouse/ClickHouse/pull/57511) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Add new aggregation function groupArraySorted()"'. [#57519](https://github.com/ClickHouse/ClickHouse/pull/57519) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Implemented series period detect method using pocketfft lib"'. [#57536](https://github.com/ClickHouse/ClickHouse/pull/57536) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* NO CL ENTRY: 'Revert "Support use alias column in indices"'. [#57537](https://github.com/ClickHouse/ClickHouse/pull/57537) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
|
||||
#### NOT FOR CHANGELOG / INSIGNIFICANT
|
||||
|
||||
* Remove useless "install" from CMake (step 1) [#36589](https://github.com/ClickHouse/ClickHouse/pull/36589) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Analyzer support 'is not distinct from' in join on section [#54068](https://github.com/ClickHouse/ClickHouse/pull/54068) ([vdimir](https://github.com/vdimir)).
|
||||
* Refactor merge join transform [#55007](https://github.com/ClickHouse/ClickHouse/pull/55007) ([Alex Cheng](https://github.com/Alex-Cheng)).
|
||||
* Add function jaccardIndex back with better performance [#55126](https://github.com/ClickHouse/ClickHouse/pull/55126) ([vdimir](https://github.com/vdimir)).
|
||||
* Use more thread pools in BACKUP/RESTORE to avoid its hanging in tests [#55216](https://github.com/ClickHouse/ClickHouse/pull/55216) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Parallel replicas: progress bar [#55574](https://github.com/ClickHouse/ClickHouse/pull/55574) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Analyzer: Fix result type after IfConstantConditionPass [#55951](https://github.com/ClickHouse/ClickHouse/pull/55951) ([Dmitry Novik](https://github.com/novikd)).
|
||||
* RemoteSource: remove unnecessary flag [#55980](https://github.com/ClickHouse/ClickHouse/pull/55980) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Fix `REPLICA_ALREADY_EXISTS` for ReplicatedMergeTree [#56000](https://github.com/ClickHouse/ClickHouse/pull/56000) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Rework [#52159](https://github.com/ClickHouse/ClickHouse/issues/52159) to avoid coredump generation [#56039](https://github.com/ClickHouse/ClickHouse/pull/56039) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Bump gRPC to v1.47.5 [#56059](https://github.com/ClickHouse/ClickHouse/pull/56059) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* See what happens if we use less different docker images in integration tests [#56082](https://github.com/ClickHouse/ClickHouse/pull/56082) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Add missing zookeeper retries in StorageReplicatedMergeTree::backupData [#56131](https://github.com/ClickHouse/ClickHouse/pull/56131) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Better process broken parts on table start for replicated tables [#56142](https://github.com/ClickHouse/ClickHouse/pull/56142) ([alesapin](https://github.com/alesapin)).
|
||||
* Add more details to "Data after merge is not byte-identical to data on another replicas" [#56164](https://github.com/ClickHouse/ClickHouse/pull/56164) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Revert "Revert "Fix output/input of Arrow dictionary column"" [#56167](https://github.com/ClickHouse/ClickHouse/pull/56167) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Add a log message for DatabaseReplicated [#56215](https://github.com/ClickHouse/ClickHouse/pull/56215) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Correct aggregate function cross tab accessors to be endianness-independent. [#56223](https://github.com/ClickHouse/ClickHouse/pull/56223) ([Austin Kothig](https://github.com/kothiga)).
|
||||
* Fix client suggestions for user without grants [#56234](https://github.com/ClickHouse/ClickHouse/pull/56234) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix link to failed check report in status commit [#56243](https://github.com/ClickHouse/ClickHouse/pull/56243) ([vdimir](https://github.com/vdimir)).
|
||||
* Analyzer: fix 01019_alter_materialized_view_consistent [#56246](https://github.com/ClickHouse/ClickHouse/pull/56246) ([vdimir](https://github.com/vdimir)).
|
||||
* Properly process aliases for aggregation-by-partition optimization. [#56254](https://github.com/ClickHouse/ClickHouse/pull/56254) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* deltalake: Do not raise errors when processing add and remove actions [#56260](https://github.com/ClickHouse/ClickHouse/pull/56260) ([joelynch](https://github.com/joelynch)).
|
||||
* Fix rare logical error in Replicated database [#56272](https://github.com/ClickHouse/ClickHouse/pull/56272) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Update version_date.tsv and changelogs after v23.10.1.1976-stable [#56278](https://github.com/ClickHouse/ClickHouse/pull/56278) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Add assertion that `SizePredictor` is set if `preferred_block_size_bytes` is set [#56302](https://github.com/ClickHouse/ClickHouse/pull/56302) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Implement digest helpers for different objects [#56305](https://github.com/ClickHouse/ClickHouse/pull/56305) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Removed stale events from README [#56311](https://github.com/ClickHouse/ClickHouse/pull/56311) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Fix more tests with analyzer. [#56315](https://github.com/ClickHouse/ClickHouse/pull/56315) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Change some exception codes [#56316](https://github.com/ClickHouse/ClickHouse/pull/56316) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix using table shared id during backup and improve logs. [#56339](https://github.com/ClickHouse/ClickHouse/pull/56339) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Print info while decompressing the binary [#56360](https://github.com/ClickHouse/ClickHouse/pull/56360) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* remove unstable test test_heavy_insert_select_check_memory [#56369](https://github.com/ClickHouse/ClickHouse/pull/56369) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Update test_storage_s3_queue/test.py [#56370](https://github.com/ClickHouse/ClickHouse/pull/56370) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Update 02735_system_zookeeper_connection.sql [#56374](https://github.com/ClickHouse/ClickHouse/pull/56374) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Cleanup convenience functions in IDataType [#56375](https://github.com/ClickHouse/ClickHouse/pull/56375) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Update test_storage_s3_queue [#56376](https://github.com/ClickHouse/ClickHouse/pull/56376) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Minor improvements for S3Queue [#56377](https://github.com/ClickHouse/ClickHouse/pull/56377) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Add obsolete setting back [#56382](https://github.com/ClickHouse/ClickHouse/pull/56382) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Rewrite jobs to use callable workflow [#56385](https://github.com/ClickHouse/ClickHouse/pull/56385) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Update stress.py [#56388](https://github.com/ClickHouse/ClickHouse/pull/56388) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix rocksdb with analyzer. [#56391](https://github.com/ClickHouse/ClickHouse/pull/56391) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Option to check particular file with utils/check-style/check-doc-aspell [#56394](https://github.com/ClickHouse/ClickHouse/pull/56394) ([vdimir](https://github.com/vdimir)).
|
||||
* Add a metric for suspicious parts in ZooKeeper [#56395](https://github.com/ClickHouse/ClickHouse/pull/56395) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix 02404_memory_bound_merging with analyzer. [#56419](https://github.com/ClickHouse/ClickHouse/pull/56419) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* move storage_metadata_write_full_object_key setting to the server scope [#56421](https://github.com/ClickHouse/ClickHouse/pull/56421) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Make autoscaling more responsive [#56422](https://github.com/ClickHouse/ClickHouse/pull/56422) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Fix `test_attach_without_fetching` [#56429](https://github.com/ClickHouse/ClickHouse/pull/56429) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Use `pcg` + `randomSeed()` instead of `std::mt19937`/`std::random_device` [#56430](https://github.com/ClickHouse/ClickHouse/pull/56430) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix test `02725_database_hdfs.sh` [#56457](https://github.com/ClickHouse/ClickHouse/pull/56457) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Update the AMI receipt [#56459](https://github.com/ClickHouse/ClickHouse/pull/56459) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Make IMergeTreeDataPart::getState() inlinable [#56461](https://github.com/ClickHouse/ClickHouse/pull/56461) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Update version_date.tsv and changelogs after v23.10.2.13-stable [#56467](https://github.com/ClickHouse/ClickHouse/pull/56467) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.9.4.11-stable [#56468](https://github.com/ClickHouse/ClickHouse/pull/56468) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.8.6.16-lts [#56469](https://github.com/ClickHouse/ClickHouse/pull/56469) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.3.16.7-lts [#56470](https://github.com/ClickHouse/ClickHouse/pull/56470) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Disable randomization of allow_experimental_block_number_column flag [#56474](https://github.com/ClickHouse/ClickHouse/pull/56474) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Parallel clone sparse/shallow submodules [#56479](https://github.com/ClickHouse/ClickHouse/pull/56479) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix default port for Replicated database cluster [#56486](https://github.com/ClickHouse/ClickHouse/pull/56486) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Updated compression to LZ4 [#56497](https://github.com/ClickHouse/ClickHouse/pull/56497) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Analyzer remove unused projection columns [#56499](https://github.com/ClickHouse/ClickHouse/pull/56499) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* FunctionSleep exception message fix [#56500](https://github.com/ClickHouse/ClickHouse/pull/56500) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Continue rewriting workflows to reusable tests [#56501](https://github.com/ClickHouse/ClickHouse/pull/56501) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Analyzer special functions projection names fix [#56514](https://github.com/ClickHouse/ClickHouse/pull/56514) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* CTE invalid query analysis add test [#56517](https://github.com/ClickHouse/ClickHouse/pull/56517) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Fix compilation of BackupsWorker.cpp [#56518](https://github.com/ClickHouse/ClickHouse/pull/56518) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Analyzer MoveFunctionsOutOfAnyPass refactoring [#56520](https://github.com/ClickHouse/ClickHouse/pull/56520) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Analyzer support EXPLAIN ESTIMATE [#56522](https://github.com/ClickHouse/ClickHouse/pull/56522) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Analyzer log used row policies [#56531](https://github.com/ClickHouse/ClickHouse/pull/56531) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Analyzer ORDER BY read in order query plan add test [#56532](https://github.com/ClickHouse/ClickHouse/pull/56532) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* ReplicatedMergeTree: check shutdown flags in retry loops [#56533](https://github.com/ClickHouse/ClickHouse/pull/56533) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix race between REPLACE_RANGE and GET_PART (set actual part name when fetching) [#56536](https://github.com/ClickHouse/ClickHouse/pull/56536) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Bump gRPC to v1.54.3 [#56543](https://github.com/ClickHouse/ClickHouse/pull/56543) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix flaky LDAP integration tests [#56544](https://github.com/ClickHouse/ClickHouse/pull/56544) ([Julian Maicher](https://github.com/jmaicher)).
|
||||
* Remove useless using [#56546](https://github.com/ClickHouse/ClickHouse/pull/56546) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Better warning message [#56547](https://github.com/ClickHouse/ClickHouse/pull/56547) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Allow `chassert` to guide the static analyzer [#56552](https://github.com/ClickHouse/ClickHouse/pull/56552) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Remove C++ templates [#56556](https://github.com/ClickHouse/ClickHouse/pull/56556) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fix `test_keeper_four_word_command/test.py::test_cmd_crst` [#56570](https://github.com/ClickHouse/ClickHouse/pull/56570) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Delete unnecessary file from tests [#56572](https://github.com/ClickHouse/ClickHouse/pull/56572) ([vdimir](https://github.com/vdimir)).
|
||||
* Analyzer: fix logical error with set in array join [#56587](https://github.com/ClickHouse/ClickHouse/pull/56587) ([vdimir](https://github.com/vdimir)).
|
||||
* hide VERSION_INLINE_DATA under feature flag [#56594](https://github.com/ClickHouse/ClickHouse/pull/56594) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Fix 02554_fix_grouping_sets_predicate_push_down with analyzer. [#56595](https://github.com/ClickHouse/ClickHouse/pull/56595) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Add "FunctionSleep exception message fix" again [#56597](https://github.com/ClickHouse/ClickHouse/pull/56597) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Update version_date.tsv and changelogs after v23.10.3.5-stable [#56606](https://github.com/ClickHouse/ClickHouse/pull/56606) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Remove bad test [#56612](https://github.com/ClickHouse/ClickHouse/pull/56612) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Symbolize `trace_log` for exporting [#56613](https://github.com/ClickHouse/ClickHouse/pull/56613) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add indices to exported system logs [#56615](https://github.com/ClickHouse/ClickHouse/pull/56615) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Remove dependencies [#56616](https://github.com/ClickHouse/ClickHouse/pull/56616) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* WIP: Add test describing MV deduplication issues [#56621](https://github.com/ClickHouse/ClickHouse/pull/56621) ([Jordi Villar](https://github.com/jrdi)).
|
||||
* Add test for ROW POLICY ON CLUSTER [#56623](https://github.com/ClickHouse/ClickHouse/pull/56623) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Enable --secure flag for clickhouse-client for hostnames pointing to clickhouse cloud [#56638](https://github.com/ClickHouse/ClickHouse/pull/56638) ([Pradeep Chhetri](https://github.com/chhetripradeep)).
|
||||
* Continue with work from [#56621](https://github.com/ClickHouse/ClickHouse/issues/56621) [#56641](https://github.com/ClickHouse/ClickHouse/pull/56641) ([Jordi Villar](https://github.com/jrdi)).
|
||||
* Switch to SSL port for clickhouse-client for hostnames pointing to clickhouse cloud [#56649](https://github.com/ClickHouse/ClickHouse/pull/56649) ([Pradeep Chhetri](https://github.com/chhetripradeep)).
|
||||
* Remove garbage from libssh [#56654](https://github.com/ClickHouse/ClickHouse/pull/56654) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Delete a file [#56655](https://github.com/ClickHouse/ClickHouse/pull/56655) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Delete a file (2) [#56656](https://github.com/ClickHouse/ClickHouse/pull/56656) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Remove some entries from `analyzer_tech_debt.txt` [#56658](https://github.com/ClickHouse/ClickHouse/pull/56658) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Miscellaneous [#56662](https://github.com/ClickHouse/ClickHouse/pull/56662) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Bump gRPC to v1.55.4 and protobuf to v22.5 [#56664](https://github.com/ClickHouse/ClickHouse/pull/56664) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Small refactoring of AST hash calculation (follow-up to [#56545](https://github.com/ClickHouse/ClickHouse/issues/56545)) [#56665](https://github.com/ClickHouse/ClickHouse/pull/56665) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Analyzer: filtering by virtual columns for StorageS3 [#56668](https://github.com/ClickHouse/ClickHouse/pull/56668) ([vdimir](https://github.com/vdimir)).
|
||||
* Add back flaky tests to analyzer_tech_debt.txt [#56669](https://github.com/ClickHouse/ClickHouse/pull/56669) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* gRPC: remove build dependency on systemd [#56671](https://github.com/ClickHouse/ClickHouse/pull/56671) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Remove unused code [#56677](https://github.com/ClickHouse/ClickHouse/pull/56677) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix missing argument for style_check.py in master workflow [#56691](https://github.com/ClickHouse/ClickHouse/pull/56691) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Fix unexpected parts handling [#56693](https://github.com/ClickHouse/ClickHouse/pull/56693) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Revert "Revert "Add a setting max_execution_time_leaf to limit the execution time on shard for distributed query"" [#56707](https://github.com/ClickHouse/ClickHouse/pull/56707) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix use_structure_from_insertion_table_in_table_functions with new Analyzer [#56708](https://github.com/ClickHouse/ClickHouse/pull/56708) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Disable settings randomisation for `02896_memory_accounting_for_user.sh` [#56709](https://github.com/ClickHouse/ClickHouse/pull/56709) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Light autogenerated file [#56720](https://github.com/ClickHouse/ClickHouse/pull/56720) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Less CMake checks [#56721](https://github.com/ClickHouse/ClickHouse/pull/56721) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Remove orphan header files [#56722](https://github.com/ClickHouse/ClickHouse/pull/56722) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Try to fix hang in 01104_distributed_numbers_test [#56764](https://github.com/ClickHouse/ClickHouse/pull/56764) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Test RabbitMQ with secure connection [#56767](https://github.com/ClickHouse/ClickHouse/pull/56767) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Fix flaky test_replicated_merge_tree_encryption_codec. [#56768](https://github.com/ClickHouse/ClickHouse/pull/56768) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* fix typo in ClickHouseDictionarySource [#56776](https://github.com/ClickHouse/ClickHouse/pull/56776) ([Mikhail Koviazin](https://github.com/mkmkme)).
|
||||
* Fix pygithub [#56778](https://github.com/ClickHouse/ClickHouse/pull/56778) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Add test for avoided recursion [#56785](https://github.com/ClickHouse/ClickHouse/pull/56785) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Fix randomization of Keeper configs in stress tests [#56788](https://github.com/ClickHouse/ClickHouse/pull/56788) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Try fix `No user in current context, it's a bug` [#56789](https://github.com/ClickHouse/ClickHouse/pull/56789) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Update avg_weighted.xml [#56797](https://github.com/ClickHouse/ClickHouse/pull/56797) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Better except for SSL authentication failure [#56811](https://github.com/ClickHouse/ClickHouse/pull/56811) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* More stable `test_keeper_reconfig_replace_leader` [#56835](https://github.com/ClickHouse/ClickHouse/pull/56835) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Add cancellation hook for moving background operation [#56846](https://github.com/ClickHouse/ClickHouse/pull/56846) ([Aleksei Filatov](https://github.com/aalexfvk)).
|
||||
* Updated comment in universal.sh [#56852](https://github.com/ClickHouse/ClickHouse/pull/56852) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Bump gRPC to v1.59 and protobuf to v24.4 [#56853](https://github.com/ClickHouse/ClickHouse/pull/56853) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Better exception messages [#56854](https://github.com/ClickHouse/ClickHouse/pull/56854) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Sparse checkout: Use `--remote` for `git submodule update` [#56857](https://github.com/ClickHouse/ClickHouse/pull/56857) ([Aleksandr Musorin](https://github.com/AVMusorin)).
|
||||
* Fix `test_keeper_broken_logs` [#56858](https://github.com/ClickHouse/ClickHouse/pull/56858) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* CMake: Small cleanup in cpu_features.cmake [#56861](https://github.com/ClickHouse/ClickHouse/pull/56861) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Planner support transactions [#56867](https://github.com/ClickHouse/ClickHouse/pull/56867) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Improve diagnostics in test 02908_many_requests_to_system_replicas [#56869](https://github.com/ClickHouse/ClickHouse/pull/56869) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Update 01052_window_view_proc_tumble_to_now.sh [#56870](https://github.com/ClickHouse/ClickHouse/pull/56870) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Call cache check a bit more often [#56872](https://github.com/ClickHouse/ClickHouse/pull/56872) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Update test_storage_s3_queue/test.py [#56874](https://github.com/ClickHouse/ClickHouse/pull/56874) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix perf tests report when there are no tests [#56881](https://github.com/ClickHouse/ClickHouse/pull/56881) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Remove ctest [#56894](https://github.com/ClickHouse/ClickHouse/pull/56894) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Simpler CMake [#56898](https://github.com/ClickHouse/ClickHouse/pull/56898) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* test for [#56790](https://github.com/ClickHouse/ClickHouse/issues/56790) [#56899](https://github.com/ClickHouse/ClickHouse/pull/56899) ([Denny Crane](https://github.com/den-crane)).
|
||||
* Allow delegate disk to handle retries for createDirectories [#56905](https://github.com/ClickHouse/ClickHouse/pull/56905) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Update version_date.tsv and changelogs after v23.10.4.25-stable [#56906](https://github.com/ClickHouse/ClickHouse/pull/56906) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.3.17.13-lts [#56907](https://github.com/ClickHouse/ClickHouse/pull/56907) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.8.7.24-lts [#56908](https://github.com/ClickHouse/ClickHouse/pull/56908) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.9.5.29-stable [#56909](https://github.com/ClickHouse/ClickHouse/pull/56909) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Remove outdated instructions [#56911](https://github.com/ClickHouse/ClickHouse/pull/56911) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Avoid dependencies with no fixed versions [#56914](https://github.com/ClickHouse/ClickHouse/pull/56914) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fix race on zk_log initialization [#56915](https://github.com/ClickHouse/ClickHouse/pull/56915) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Check what will happen if I remove some lines [#56916](https://github.com/ClickHouse/ClickHouse/pull/56916) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Update fasttest [#56919](https://github.com/ClickHouse/ClickHouse/pull/56919) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Make some tests independent of macro settings [#56927](https://github.com/ClickHouse/ClickHouse/pull/56927) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix flaky 02494_query_cache_events [#56935](https://github.com/ClickHouse/ClickHouse/pull/56935) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Add CachedReadBufferReadFromCache{Hits,Misses} profile events [#56936](https://github.com/ClickHouse/ClickHouse/pull/56936) ([Jordi Villar](https://github.com/jrdi)).
|
||||
* Send fatal logs by default in clickhouse-local [#56956](https://github.com/ClickHouse/ClickHouse/pull/56956) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Resubmit: Better except for SSL authentication [#56957](https://github.com/ClickHouse/ClickHouse/pull/56957) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix `test_keeper_auth` [#56960](https://github.com/ClickHouse/ClickHouse/pull/56960) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fewer concurrent requests in 02908_many_requests_to_system_replicas [#56968](https://github.com/ClickHouse/ClickHouse/pull/56968) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Own CMake for GRPC [#56971](https://github.com/ClickHouse/ClickHouse/pull/56971) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fix build in Backups/BackupIO_S3.cpp [#56974](https://github.com/ClickHouse/ClickHouse/pull/56974) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Add exclude for tryBase64Decode to backward compat test (follow-up to [#56913](https://github.com/ClickHouse/ClickHouse/issues/56913)) [#56975](https://github.com/ClickHouse/ClickHouse/pull/56975) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Prefer sccache to ccache by default [#56980](https://github.com/ClickHouse/ClickHouse/pull/56980) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* update 02003_memory_limit_in_client.sh [#56981](https://github.com/ClickHouse/ClickHouse/pull/56981) ([Bharat Nallan](https://github.com/bharatnc)).
|
||||
* Make check for the limited cmake dependencies the part of sparse checkout [#56991](https://github.com/ClickHouse/ClickHouse/pull/56991) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Fix flaky and slow tests. [#56993](https://github.com/ClickHouse/ClickHouse/pull/56993) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix dropping tables in test_create_or_drop_tables_during_backup [#57007](https://github.com/ClickHouse/ClickHouse/pull/57007) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Enable Analyzer in Stress and Fuzz tests [#57008](https://github.com/ClickHouse/ClickHouse/pull/57008) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Run CI for PRs with missing documentation [#57018](https://github.com/ClickHouse/ClickHouse/pull/57018) ([Michael Kolupaev](https://github.com/al13n321)).
|
||||
* test_s3_engine_heavy_write_check_mem: turn test off [#57025](https://github.com/ClickHouse/ClickHouse/pull/57025) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* NamedCollections: make exception message more informative. [#57031](https://github.com/ClickHouse/ClickHouse/pull/57031) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
|
||||
* Avoid returning biggest resolution when fpr > 0.283 [#57034](https://github.com/ClickHouse/ClickHouse/pull/57034) ([Jordi Villar](https://github.com/jrdi)).
|
||||
* Fix: suppress TSAN in RabbitMQ test [#57040](https://github.com/ClickHouse/ClickHouse/pull/57040) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Small Keeper fixes [#57047](https://github.com/ClickHouse/ClickHouse/pull/57047) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Parallel replicas: cleanup, narrow dependency [#57054](https://github.com/ClickHouse/ClickHouse/pull/57054) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Fix gRPC build on macOS [#57061](https://github.com/ClickHouse/ClickHouse/pull/57061) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Better comment for ITransformingStep::transformPipeline [#57062](https://github.com/ClickHouse/ClickHouse/pull/57062) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix `Duplicate set` for StorageSet with analyzer. [#57063](https://github.com/ClickHouse/ClickHouse/pull/57063) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Better metadata path [#57083](https://github.com/ClickHouse/ClickHouse/pull/57083) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Analyzer fuzzer 3 (aggregate_functions_null_for_empty for projections) [#57099](https://github.com/ClickHouse/ClickHouse/pull/57099) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Update numbers.md [#57100](https://github.com/ClickHouse/ClickHouse/pull/57100) ([konruvikt](https://github.com/konruvikt)).
|
||||
* Fix FunctionNode::toASTImpl [#57102](https://github.com/ClickHouse/ClickHouse/pull/57102) ([vdimir](https://github.com/vdimir)).
|
||||
* Analyzer fuzzer 5 [#57103](https://github.com/ClickHouse/ClickHouse/pull/57103) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Cancel PipelineExecutor properly in case of exception in spawnThreads [#57104](https://github.com/ClickHouse/ClickHouse/pull/57104) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Allow HashedDictionary/FunctionsConversion as large TU [#57108](https://github.com/ClickHouse/ClickHouse/pull/57108) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Disable checksums for builds with fuzzer [#57122](https://github.com/ClickHouse/ClickHouse/pull/57122) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Analyzer: Fix logical error in LogicalExpressionOptimizerVisitor [#57123](https://github.com/ClickHouse/ClickHouse/pull/57123) ([vdimir](https://github.com/vdimir)).
|
||||
* Split HashedDictionary CU [#57124](https://github.com/ClickHouse/ClickHouse/pull/57124) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Cancel executor in ~CreatingSetsTransform [#57125](https://github.com/ClickHouse/ClickHouse/pull/57125) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix system.*_log in artifacts on CI [#57128](https://github.com/ClickHouse/ClickHouse/pull/57128) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Fix something in ReplicatedMergeTree [#57129](https://github.com/ClickHouse/ClickHouse/pull/57129) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Do not symbolize traces for debug/sanitizer builds for sending to cloud [#57130](https://github.com/ClickHouse/ClickHouse/pull/57130) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Resubmit 01600_parts_types_metrics test (possibly without flakiness) [#57131](https://github.com/ClickHouse/ClickHouse/pull/57131) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Follow up to [#56541](https://github.com/ClickHouse/ClickHouse/issues/56541) [#57141](https://github.com/ClickHouse/ClickHouse/pull/57141) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Allow to disable reorder-functions-after-sorting optimization [#57144](https://github.com/ClickHouse/ClickHouse/pull/57144) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Fix bad test `00002_log_and_exception_messages_formatting` [#57145](https://github.com/ClickHouse/ClickHouse/pull/57145) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fix test test_replicated_merge_tree_encryption_codec/test.py::test_different_keys [#57146](https://github.com/ClickHouse/ClickHouse/pull/57146) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Remove partial results from build matrix for stress tests [#57150](https://github.com/ClickHouse/ClickHouse/pull/57150) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Minor changes in test_check_table [#57154](https://github.com/ClickHouse/ClickHouse/pull/57154) ([vdimir](https://github.com/vdimir)).
|
||||
* Fix 02903_rmt_retriable_merge_exception flakiness for replicated database [#57155](https://github.com/ClickHouse/ClickHouse/pull/57155) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Mark select() as harmful function [#57156](https://github.com/ClickHouse/ClickHouse/pull/57156) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Improve the cherry-pick PR description [#57167](https://github.com/ClickHouse/ClickHouse/pull/57167) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Add debugging info for 01600_parts_types_metrics on failures [#57170](https://github.com/ClickHouse/ClickHouse/pull/57170) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Tiny improvement security [#57171](https://github.com/ClickHouse/ClickHouse/pull/57171) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Update blob_storage_log.md [#57187](https://github.com/ClickHouse/ClickHouse/pull/57187) ([vdimir](https://github.com/vdimir)).
|
||||
* [RFC] Set log_comment to the file name while processing files in client [#57191](https://github.com/ClickHouse/ClickHouse/pull/57191) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Add test for [#5323](https://github.com/ClickHouse/ClickHouse/issues/5323) [#57192](https://github.com/ClickHouse/ClickHouse/pull/57192) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Analyzer fuzzer 6 (arrayJoin) [#57198](https://github.com/ClickHouse/ClickHouse/pull/57198) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Add test for [#47366](https://github.com/ClickHouse/ClickHouse/issues/47366) [#57200](https://github.com/ClickHouse/ClickHouse/pull/57200) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Add test for [#51321](https://github.com/ClickHouse/ClickHouse/issues/51321) [#57202](https://github.com/ClickHouse/ClickHouse/pull/57202) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix possible crash (in Rust) of fuzzy finder in client [#57204](https://github.com/ClickHouse/ClickHouse/pull/57204) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* fix zero-copy locks leaking [#57205](https://github.com/ClickHouse/ClickHouse/pull/57205) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Fix test_distributed_storage_configuration flakiness [#57206](https://github.com/ClickHouse/ClickHouse/pull/57206) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Update Sentry [#57222](https://github.com/ClickHouse/ClickHouse/pull/57222) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Update version_date.tsv and changelogs after v23.10.5.20-stable [#57223](https://github.com/ClickHouse/ClickHouse/pull/57223) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.9.6.20-stable [#57224](https://github.com/ClickHouse/ClickHouse/pull/57224) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.3.18.15-lts [#57225](https://github.com/ClickHouse/ClickHouse/pull/57225) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Update version_date.tsv and changelogs after v23.8.8.20-lts [#57226](https://github.com/ClickHouse/ClickHouse/pull/57226) ([robot-clickhouse](https://github.com/robot-clickhouse)).
|
||||
* Change cursor style for overwrite mode (INS) to blinking in client [#57227](https://github.com/ClickHouse/ClickHouse/pull/57227) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Remove test `01280_ttl_where_group_by` [#57230](https://github.com/ClickHouse/ClickHouse/pull/57230) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Fix docs [#57234](https://github.com/ClickHouse/ClickHouse/pull/57234) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Remove addBatchSinglePlaceFromInterval [#57258](https://github.com/ClickHouse/ClickHouse/pull/57258) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Add some additional groups to CI [#57260](https://github.com/ClickHouse/ClickHouse/pull/57260) ([alesapin](https://github.com/alesapin)).
|
||||
* Analyzer: fix result type of aggregate function with NULL [#57265](https://github.com/ClickHouse/ClickHouse/pull/57265) ([vdimir](https://github.com/vdimir)).
|
||||
* Ignore memory exception in Keeper asio workers [#57268](https://github.com/ClickHouse/ClickHouse/pull/57268) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix code reports [#57301](https://github.com/ClickHouse/ClickHouse/pull/57301) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Follow up recommendations from [#57167](https://github.com/ClickHouse/ClickHouse/issues/57167) [#57302](https://github.com/ClickHouse/ClickHouse/pull/57302) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Add back flaky tests to analyzer_tech_debt.txt [#57307](https://github.com/ClickHouse/ClickHouse/pull/57307) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Lower level for annoying S3 log [#57312](https://github.com/ClickHouse/ClickHouse/pull/57312) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Add regression test for skim (Rust) crash on pasting certain input [#57313](https://github.com/ClickHouse/ClickHouse/pull/57313) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Remove unused Strings from MergeTreeData [#57318](https://github.com/ClickHouse/ClickHouse/pull/57318) ([Mikhail Koviazin](https://github.com/mkmkme)).
|
||||
* Address 02668_ulid_decoding flakiness [#57320](https://github.com/ClickHouse/ClickHouse/pull/57320) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* DiskWeb fix [#57322](https://github.com/ClickHouse/ClickHouse/pull/57322) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Update README.md [#57325](https://github.com/ClickHouse/ClickHouse/pull/57325) ([Tyler Hannan](https://github.com/tylerhannan)).
|
||||
* Add information about new _size virtual column in file/s3/url/hdfs/azure table functions [#57328](https://github.com/ClickHouse/ClickHouse/pull/57328) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Follow-up to [#56490](https://github.com/ClickHouse/ClickHouse/issues/56490): Fix build with `cmake -DENABLE_LIBRARIES=0` [#57330](https://github.com/ClickHouse/ClickHouse/pull/57330) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Mark a setting obsolete [#57336](https://github.com/ClickHouse/ClickHouse/pull/57336) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Always renew ZK client in `WithRetries` [#57357](https://github.com/ClickHouse/ClickHouse/pull/57357) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Shutdown disks after tables [#57358](https://github.com/ClickHouse/ClickHouse/pull/57358) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Update DDLTask.cpp [#57369](https://github.com/ClickHouse/ClickHouse/pull/57369) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* verbose exception messages for StorageFuzzJSON [#57372](https://github.com/ClickHouse/ClickHouse/pull/57372) ([Julia Kartseva](https://github.com/jkartseva)).
|
||||
* Initialize only required disks in clickhouse-disks [#57387](https://github.com/ClickHouse/ClickHouse/pull/57387) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Allow wildcards in directories for partitioned write with File storage [#57391](https://github.com/ClickHouse/ClickHouse/pull/57391) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Add tests for 43202 [#57404](https://github.com/ClickHouse/ClickHouse/pull/57404) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Consider whole check failure in bugfix validate check as an error [#57413](https://github.com/ClickHouse/ClickHouse/pull/57413) ([vdimir](https://github.com/vdimir)).
|
||||
* Change type of s3_cache in test_encrypted_disk [#57416](https://github.com/ClickHouse/ClickHouse/pull/57416) ([vdimir](https://github.com/vdimir)).
|
||||
* Add extra debug information on replication consistency errors [#57419](https://github.com/ClickHouse/ClickHouse/pull/57419) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Don't print server revision in client on connect [#57435](https://github.com/ClickHouse/ClickHouse/pull/57435) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Adding Sydney Meetup [#57457](https://github.com/ClickHouse/ClickHouse/pull/57457) ([Tyler Hannan](https://github.com/tylerhannan)).
|
||||
* Fix adjusting log_comment in case of multiple files passed [#57464](https://github.com/ClickHouse/ClickHouse/pull/57464) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Fix flaky test 02697_stop_reading_on_first_cancel.sh [#57481](https://github.com/ClickHouse/ClickHouse/pull/57481) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Tiny refactoring around cache [#57482](https://github.com/ClickHouse/ClickHouse/pull/57482) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Decrease default value for `filesystem_prefetch_min_bytes_for_single_read_task` [#57489](https://github.com/ClickHouse/ClickHouse/pull/57489) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Remove bad test [#57494](https://github.com/ClickHouse/ClickHouse/pull/57494) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add changelog for 23.11 [#57517](https://github.com/ClickHouse/ClickHouse/pull/57517) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Simple cleanup in distributed (while dealing with parallel replicas) [#57518](https://github.com/ClickHouse/ClickHouse/pull/57518) ([Igor Nikonov](https://github.com/devcrafter)).
|
||||
* Remove a feature. [#57521](https://github.com/ClickHouse/ClickHouse/pull/57521) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* `S3Queue` is production ready [#57548](https://github.com/ClickHouse/ClickHouse/pull/57548) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Revert "Merge pull request [#56724](https://github.com/ClickHouse/ClickHouse/issues/56724) from canhld94/ch_replicated_column_mismatch" [#57576](https://github.com/ClickHouse/ClickHouse/pull/57576) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
|
||||
@ -47,6 +47,12 @@ SELECT * FROM test_table;
|
||||
└──────┴───────┘
|
||||
```
|
||||
|
||||
## Virtual columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
|
||||
|
||||
## See also
|
||||
|
||||
[Azure Blob Storage Table Function](/docs/en/sql-reference/table-functions/azureBlobStorage)
|
||||
|
||||
@ -85,6 +85,10 @@ You can also change any [rocksdb options](https://github.com/facebook/rocksdb/wi
|
||||
</rocksdb>
|
||||
```
|
||||
|
||||
By default trivial approximate count optimization is turned off, which might affect the performance `count()` queries. To enable this
|
||||
optimization set up `optimize_trivial_approximate_count_query = 1`. Also, this setting affects `system.tables` for EmbeddedRocksDB engine,
|
||||
turn on the settings to see approximate values for `total_rows` and `total_bytes`.
|
||||
|
||||
## Supported operations {#supported-operations}
|
||||
|
||||
### Inserts
|
||||
|
||||
@ -230,8 +230,9 @@ libhdfs3 support HDFS namenode HA.
|
||||
|
||||
## Virtual Columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the file.
|
||||
- `_file` — Name of the file.
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
|
||||
|
||||
## Storage Settings {#storage-settings}
|
||||
|
||||
|
||||
@ -142,8 +142,9 @@ Code: 48. DB::Exception: Received from localhost:9000. DB::Exception: Reading fr
|
||||
|
||||
## Virtual columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the file.
|
||||
- `_file` — Name of the file.
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
|
||||
|
||||
For more information about virtual columns see [here](../../../engines/table-engines/index.md#table_engines-virtual_columns).
|
||||
|
||||
|
||||
@ -4,16 +4,9 @@ sidebar_position: 181
|
||||
sidebar_label: S3Queue
|
||||
---
|
||||
|
||||
# [experimental] S3Queue Table Engine
|
||||
# S3Queue Table Engine
|
||||
This engine provides integration with [Amazon S3](https://aws.amazon.com/s3/) ecosystem and allows streaming import. This engine is similar to the [Kafka](../../../engines/table-engines/integrations/kafka.md), [RabbitMQ](../../../engines/table-engines/integrations/rabbitmq.md) engines, but provides S3-specific features.
|
||||
|
||||
:::note
|
||||
This table engine is experimental. To use it, set `allow_experimental_s3queue` to 1 by using the `SET` command:
|
||||
```sql
|
||||
SET allow_experimental_s3queue=1
|
||||
```
|
||||
:::
|
||||
|
||||
## Create Table {#creating-a-table}
|
||||
|
||||
``` sql
|
||||
|
||||
@ -39,8 +39,8 @@ If you need to update rows frequently, we recommend using the [`ReplacingMergeTr
|
||||
``` sql
|
||||
CREATE TABLE [IF NOT EXISTS] [db.]table_name [ON CLUSTER cluster]
|
||||
(
|
||||
name1 [type1] [[NOT] NULL] [DEFAULT|MATERIALIZED|ALIAS|EPHEMERAL expr1] [COMMENT ...] [CODEC(codec1)] [TTL expr1] [PRIMARY KEY],
|
||||
name2 [type2] [[NOT] NULL] [DEFAULT|MATERIALIZED|ALIAS|EPHEMERAL expr2] [COMMENT ...] [CODEC(codec2)] [TTL expr2] [PRIMARY KEY],
|
||||
name1 [type1] [[NOT] NULL] [DEFAULT|MATERIALIZED|ALIAS|EPHEMERAL expr1] [COMMENT ...] [CODEC(codec1)] [STATISTIC(stat1)] [TTL expr1] [PRIMARY KEY],
|
||||
name2 [type2] [[NOT] NULL] [DEFAULT|MATERIALIZED|ALIAS|EPHEMERAL expr2] [COMMENT ...] [CODEC(codec2)] [STATISTIC(stat2)] [TTL expr2] [PRIMARY KEY],
|
||||
...
|
||||
INDEX index_name1 expr1 TYPE type1(...) [GRANULARITY value1],
|
||||
INDEX index_name2 expr2 TYPE type2(...) [GRANULARITY value2],
|
||||
@ -504,8 +504,8 @@ Indexes of type `set` can be utilized by all functions. The other index types ar
|
||||
|
||||
| Function (operator) / Index | primary key | minmax | ngrambf_v1 | tokenbf_v1 | bloom_filter | inverted |
|
||||
|------------------------------------------------------------------------------------------------------------|-------------|--------|------------|------------|--------------|----------|
|
||||
| [equals (=, ==)](/docs/en/sql-reference/functions/comparison-functions.md/#function-equals) | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notEquals(!=, <>)](/docs/en/sql-reference/functions/comparison-functions.md/#function-notequals) | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [equals (=, ==)](/docs/en/sql-reference/functions/comparison-functions.md/#equals) | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notEquals(!=, <>)](/docs/en/sql-reference/functions/comparison-functions.md/#notequals) | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [like](/docs/en/sql-reference/functions/string-search-functions.md/#function-like) | ✔ | ✔ | ✔ | ✔ | ✗ | ✔ |
|
||||
| [notLike](/docs/en/sql-reference/functions/string-search-functions.md/#function-notlike) | ✔ | ✔ | ✔ | ✔ | ✗ | ✔ |
|
||||
| [startsWith](/docs/en/sql-reference/functions/string-functions.md/#startswith) | ✔ | ✔ | ✔ | ✔ | ✗ | ✔ |
|
||||
@ -513,10 +513,10 @@ Indexes of type `set` can be utilized by all functions. The other index types ar
|
||||
| [multiSearchAny](/docs/en/sql-reference/functions/string-search-functions.md/#function-multisearchany) | ✗ | ✗ | ✔ | ✗ | ✗ | ✔ |
|
||||
| [in](/docs/en/sql-reference/functions/in-functions#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notIn](/docs/en/sql-reference/functions/in-functions#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [less (<)](/docs/en/sql-reference/functions/comparison-functions.md/#function-less) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [greater (>)](/docs/en/sql-reference/functions/comparison-functions.md/#function-greater) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [lessOrEquals (<=)](/docs/en/sql-reference/functions/comparison-functions.md/#function-lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [greaterOrEquals (>=)](/docs/en/sql-reference/functions/comparison-functions.md/#function-greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [less (<)](/docs/en/sql-reference/functions/comparison-functions.md/#less) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [greater (>)](/docs/en/sql-reference/functions/comparison-functions.md/#greater) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [lessOrEquals (<=)](/docs/en/sql-reference/functions/comparison-functions.md/#lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [greaterOrEquals (>=)](/docs/en/sql-reference/functions/comparison-functions.md/#greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [empty](/docs/en/sql-reference/functions/array-functions#function-empty) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [notEmpty](/docs/en/sql-reference/functions/array-functions#function-notempty) | ✔ | ✔ | ✗ | ✗ | ✗ | ✗ |
|
||||
| [has](/docs/en/sql-reference/functions/array-functions#function-has) | ✗ | ✗ | ✔ | ✔ | ✔ | ✔ |
|
||||
@ -865,10 +865,10 @@ Tags:
|
||||
- `disk` — a disk within a volume.
|
||||
- `max_data_part_size_bytes` — the maximum size of a part that can be stored on any of the volume’s disks. If the a size of a merged part estimated to be bigger than `max_data_part_size_bytes` then this part will be written to a next volume. Basically this feature allows to keep new/small parts on a hot (SSD) volume and move them to a cold (HDD) volume when they reach large size. Do not use this setting if your policy has only one volume.
|
||||
- `move_factor` — when the amount of available space gets lower than this factor, data automatically starts to move on the next volume if any (by default, 0.1). ClickHouse sorts existing parts by size from largest to smallest (in descending order) and selects parts with the total size that is sufficient to meet the `move_factor` condition. If the total size of all parts is insufficient, all parts will be moved.
|
||||
- `prefer_not_to_merge` — Disables merging of data parts on this volume. When this setting is enabled, merging data on this volume is not allowed. This allows controlling how ClickHouse works with slow disks.
|
||||
- `perform_ttl_move_on_insert` — Disables TTL move on data part INSERT. By default (if enabled) if we insert a data part that already expired by the TTL move rule it immediately goes to a volume/disk declared in move rule. This can significantly slowdown insert in case if destination volume/disk is slow (e.g. S3). If disabled then already expired data part is written into a default volume and then right after moved to TTL volume.
|
||||
- `load_balancing` - Policy for disk balancing, `round_robin` or `least_used`.
|
||||
- `least_used_ttl_ms` - Configure timeout (in milliseconds) for the updating available space on all disks (`0` - update always, `-1` - never update, default is `60000`). Note, if the disk can be used by ClickHouse only and is not subject to a online filesystem resize/shrink you can use `-1`, in all other cases it is not recommended, since eventually it will lead to incorrect space distribution.
|
||||
- `prefer_not_to_merge` — You should not use this setting. Disables merging of data parts on this volume (this is harmful and leads to performance degradation). When this setting is enabled (don't do it), merging data on this volume is not allowed (which is bad). This allows (but you don't need it) controlling (if you want to control something, you're making a mistake) how ClickHouse works with slow disks (but ClickHouse knows better, so please don't use this setting).
|
||||
|
||||
Configuration examples:
|
||||
|
||||
@ -905,7 +905,6 @@ Configuration examples:
|
||||
</main>
|
||||
<external>
|
||||
<disk>external</disk>
|
||||
<prefer_not_to_merge>true</prefer_not_to_merge>
|
||||
</external>
|
||||
</volumes>
|
||||
</small_jbod_with_external_no_merges>
|
||||
@ -1358,3 +1357,33 @@ In this sample configuration:
|
||||
- `_partition_value` — Values (a tuple) of a `partition by` expression.
|
||||
- `_sample_factor` — Sample factor (from the query).
|
||||
- `_block_number` — Block number of the row, it is persisted on merges when `allow_experimental_block_number_column` is set to true.
|
||||
|
||||
## Column Statistics (Experimental) {#column-statistics}
|
||||
|
||||
The statistic declaration is in the columns section of the `CREATE` query for tables from the `*MergeTree*` Family when we enable `set allow_experimental_statistic = 1`.
|
||||
|
||||
``` sql
|
||||
CREATE TABLE example_table
|
||||
(
|
||||
a Int64 STATISTIC(tdigest),
|
||||
b Float64
|
||||
)
|
||||
ENGINE = MergeTree
|
||||
ORDER BY a
|
||||
```
|
||||
|
||||
We can also manipulate statistics with `ALTER` statements.
|
||||
|
||||
```sql
|
||||
ALTER TABLE example_table ADD STATISTIC b TYPE tdigest;
|
||||
ALTER TABLE example_table DROP STATISTIC a TYPE tdigest;
|
||||
```
|
||||
|
||||
These lightweight statistics aggregate information about distribution of values in columns.
|
||||
They can be used for query optimization when we enable `set allow_statistic_optimize = 1`.
|
||||
|
||||
#### Available Types of Column Statistics {#available-types-of-column-statistics}
|
||||
|
||||
- `tdigest`
|
||||
|
||||
Stores distribution of values from numeric columns in [TDigest](https://github.com/tdunning/t-digest) sketch.
|
||||
|
||||
@ -87,12 +87,18 @@ $ echo -e "1,2\n3,4" | clickhouse-local -q "CREATE TABLE table (a Int64, b Int64
|
||||
- Indices
|
||||
- Replication
|
||||
|
||||
## PARTITION BY
|
||||
## PARTITION BY {#partition-by}
|
||||
|
||||
`PARTITION BY` — Optional. It is possible to create separate files by partitioning the data on a partition key. In most cases, you don't need a partition key, and if it is needed you generally don't need a partition key more granular than by month. Partitioning does not speed up queries (in contrast to the ORDER BY expression). You should never use too granular partitioning. Don't partition your data by client identifiers or names (instead, make client identifier or name the first column in the ORDER BY expression).
|
||||
|
||||
For partitioning by month, use the `toYYYYMM(date_column)` expression, where `date_column` is a column with a date of the type [Date](/docs/en/sql-reference/data-types/date.md). The partition names here have the `"YYYYMM"` format.
|
||||
|
||||
## Virtual Columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
|
||||
|
||||
## Settings {#settings}
|
||||
|
||||
- [engine_file_empty_if_not_exists](/docs/en/operations/settings/settings.md#engine-file-emptyif-not-exists) - allows to select empty data from a file that doesn't exist. Disabled by default.
|
||||
|
||||
@ -103,6 +103,12 @@ SELECT * FROM url_engine_table
|
||||
|
||||
For partitioning by month, use the `toYYYYMM(date_column)` expression, where `date_column` is a column with a date of the type [Date](/docs/en/sql-reference/data-types/date.md). The partition names here have the `"YYYYMM"` format.
|
||||
|
||||
## Virtual Columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the `URL`. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Resource name of the `URL`. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the resource in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
|
||||
|
||||
## Storage Settings {#storage-settings}
|
||||
|
||||
- [engine_url_skip_empty_files](/docs/en/operations/settings/settings.md#engine_url_skip_empty_files) - allows to skip empty files while reading. Disabled by default.
|
||||
|
||||
@ -56,7 +56,7 @@ On Linux, macOS and FreeBSD:
|
||||
./clickhouse client
|
||||
ClickHouse client version 23.2.1.1501 (official build).
|
||||
Connecting to localhost:9000 as user default.
|
||||
Connected to ClickHouse server version 23.2.1 revision 54461.
|
||||
Connected to ClickHouse server version 23.2.1.
|
||||
|
||||
local-host :)
|
||||
```
|
||||
@ -81,7 +81,7 @@ It is recommended to use official pre-compiled `deb` packages for Debian or Ubun
|
||||
sudo apt-get install -y apt-transport-https ca-certificates dirmngr
|
||||
GNUPGHOME=$(mktemp -d)
|
||||
sudo GNUPGHOME="$GNUPGHOME" gpg --no-default-keyring --keyring /usr/share/keyrings/clickhouse-keyring.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 8919F6BD2B48D754
|
||||
sudo rm -r "$GNUPGHOME"
|
||||
sudo rm -rf "$GNUPGHOME"
|
||||
sudo chmod +r /usr/share/keyrings/clickhouse-keyring.gpg
|
||||
|
||||
echo "deb [signed-by=/usr/share/keyrings/clickhouse-keyring.gpg] https://packages.clickhouse.com/deb stable main" | sudo tee \
|
||||
|
||||
@ -16,7 +16,7 @@ ClickHouse provides a native command-line client: `clickhouse-client`. The clien
|
||||
$ clickhouse-client
|
||||
ClickHouse client version 20.13.1.5273 (official build).
|
||||
Connecting to localhost:9000 as user default.
|
||||
Connected to ClickHouse server version 20.13.1 revision 54442.
|
||||
Connected to ClickHouse server version 20.13.1.
|
||||
|
||||
:)
|
||||
```
|
||||
|
||||
@ -15,6 +15,27 @@ You can monitor:
|
||||
- Utilization of hardware resources.
|
||||
- ClickHouse server metrics.
|
||||
|
||||
## Built-in observability dashboard
|
||||
|
||||
<img width="400" alt="Screenshot 2023-11-12 at 6 08 58 PM" src="https://github.com/ClickHouse/ClickHouse/assets/3936029/2bd10011-4a47-4b94-b836-d44557c7fdc1" />
|
||||
|
||||
ClickHouse comes with a built-in observability dashboard feature which can be accessed by `$HOST:$PORT/dashboard` (requires user and password) that shows the following metrics:
|
||||
- Queries/second
|
||||
- CPU usage (cores)
|
||||
- Queries running
|
||||
- Merges running
|
||||
- Selected bytes/second
|
||||
- IO wait
|
||||
- CPU wait
|
||||
- OS CPU Usage (userspace)
|
||||
- OS CPU Usage (kernel)
|
||||
- Read from disk
|
||||
- Read from filesystem
|
||||
- Memory (tracked)
|
||||
- Inserted rows/second
|
||||
- Total MergeTree parts
|
||||
- Max parts for partition
|
||||
|
||||
## Resource Utilization {#resource-utilization}
|
||||
|
||||
ClickHouse also monitors the state of hardware resources by itself such as:
|
||||
|
||||
@ -16,9 +16,9 @@ More information about PGO in ClickHouse you can read in the corresponding GitHu
|
||||
|
||||
There are two major kinds of PGO: [Instrumentation](https://clang.llvm.org/docs/UsersManual.html#using-sampling-profilers) and [Sampling](https://clang.llvm.org/docs/UsersManual.html#using-sampling-profilers) (also known as AutoFDO). In this guide is described the Instrumentation PGO with ClickHouse.
|
||||
|
||||
1. Build ClickHouse in Instrumented mode. In Clang it can be done via passing `-fprofile-instr-generate` option to `CXXFLAGS`.
|
||||
1. Build ClickHouse in Instrumented mode. In Clang it can be done via passing `-fprofile-generate` option to `CXXFLAGS`.
|
||||
2. Run instrumented ClickHouse on a sample workload. Here you need to use your usual workload. One of the approaches could be using [ClickBench](https://github.com/ClickHouse/ClickBench) as a sample workload. ClickHouse in the instrumentation mode could work slowly so be ready for that and do not run instrumented ClickHouse in performance-critical environments.
|
||||
3. Recompile ClickHouse once again with `-fprofile-instr-use` compiler flags and profiles that are collected from the previous step.
|
||||
3. Recompile ClickHouse once again with `-fprofile-use` compiler flags and profiles that are collected from the previous step.
|
||||
|
||||
A more detailed guide on how to apply PGO is in the Clang [documentation](https://clang.llvm.org/docs/UsersManual.html#profile-guided-optimization).
|
||||
|
||||
|
||||
@ -1646,6 +1646,45 @@ Default value: `0.5`.
|
||||
|
||||
|
||||
|
||||
## async_load_databases {#async_load_databases}
|
||||
|
||||
Asynchronous loading of databases and tables.
|
||||
|
||||
If `true` all non-system databases with `Ordinary`, `Atomic` and `Replicated` engine will be loaded asynchronously after the ClickHouse server start up. See `system.async_loader` table, `tables_loader_background_pool_size` and `tables_loader_foreground_pool_size` server settings. Any query that tries to access a table, that is not yet loaded, will wait for exactly this table to be started up. If load job fails, query will rethrow an error (instead of shutting down the whole server in case of `async_load_databases = false`). The table that is waited for by at least one query will be loaded with higher priority. DDL queries on a database will wait for exactly that database to be started up.
|
||||
|
||||
If `false`, all databases are loaded when the server starts.
|
||||
|
||||
The default is `false`.
|
||||
|
||||
**Example**
|
||||
|
||||
``` xml
|
||||
<async_load_databases>true</async_load_databases>
|
||||
```
|
||||
|
||||
## tables_loader_foreground_pool_size {#tables_loader_foreground_pool_size}
|
||||
|
||||
Sets the number of threads performing load jobs in foreground pool. The foreground pool is used for loading table synchronously before server start listening on a port and for loading tables that are waited for. Foreground pool has higher priority than background pool. It means that no job starts in background pool while there are jobs running in foreground pool.
|
||||
|
||||
Possible values:
|
||||
|
||||
- Any positive integer.
|
||||
- Zero. Use all available CPUs.
|
||||
|
||||
Default value: 0.
|
||||
|
||||
|
||||
## tables_loader_background_pool_size {#tables_loader_background_pool_size}
|
||||
|
||||
Sets the number of threads performing asynchronous load jobs in background pool. The background pool is used for loading tables asynchronously after server start in case there are no queries waiting for the table. It could be beneficial to keep low number of threads in background pool if there are a lot of tables. It will reserve CPU resources for concurrent query execution.
|
||||
|
||||
Possible values:
|
||||
|
||||
- Any positive integer.
|
||||
- Zero. Use all available CPUs.
|
||||
|
||||
Default value: 0.
|
||||
|
||||
|
||||
## merge_tree {#merge_tree}
|
||||
|
||||
@ -1835,9 +1874,10 @@ Settings:
|
||||
|
||||
- `endpoint` – HTTP endpoint for scraping metrics by prometheus server. Start from ‘/’.
|
||||
- `port` – Port for `endpoint`.
|
||||
- `metrics` – Flag that sets to expose metrics from the [system.metrics](../../operations/system-tables/metrics.md#system_tables-metrics) table.
|
||||
- `events` – Flag that sets to expose metrics from the [system.events](../../operations/system-tables/events.md#system_tables-events) table.
|
||||
- `asynchronous_metrics` – Flag that sets to expose current metrics values from the [system.asynchronous_metrics](../../operations/system-tables/asynchronous_metrics.md#system_tables-asynchronous_metrics) table.
|
||||
- `metrics` – Expose metrics from the [system.metrics](../../operations/system-tables/metrics.md#system_tables-metrics) table.
|
||||
- `events` – Expose metrics from the [system.events](../../operations/system-tables/events.md#system_tables-events) table.
|
||||
- `asynchronous_metrics` – Expose current metrics values from the [system.asynchronous_metrics](../../operations/system-tables/asynchronous_metrics.md#system_tables-asynchronous_metrics) table.
|
||||
- `errors` - Expose the number of errors by error codes occurred since the last server restart. This information could be obtained from the [system.errors](../../operations/system-tables/asynchronous_metrics.md#system_tables-errors) as well.
|
||||
|
||||
**Example**
|
||||
|
||||
@ -1853,6 +1893,7 @@ Settings:
|
||||
<metrics>true</metrics>
|
||||
<events>true</events>
|
||||
<asynchronous_metrics>true</asynchronous_metrics>
|
||||
<errors>true</errors>
|
||||
</prometheus>
|
||||
<!-- highlight-end -->
|
||||
</clickhouse>
|
||||
@ -2350,7 +2391,7 @@ Path on the local filesystem to store temporary data for processing large querie
|
||||
|
||||
## user_files_path {#user_files_path}
|
||||
|
||||
The directory with user files. Used in the table function [file()](../../sql-reference/table-functions/file.md).
|
||||
The directory with user files. Used in the table function [file()](../../sql-reference/table-functions/file.md), [fileCluster()](../../sql-reference/table-functions/fileCluster.md).
|
||||
|
||||
**Example**
|
||||
|
||||
|
||||
@ -149,7 +149,7 @@ Possible values:
|
||||
- Any positive integer.
|
||||
- 0 (disable deduplication)
|
||||
|
||||
Default value: 100.
|
||||
Default value: 1000.
|
||||
|
||||
The `Insert` command creates one or more blocks (parts). For [insert deduplication](../../engines/table-engines/mergetree-family/replication.md), when writing into replicated tables, ClickHouse writes the hash sums of the created parts into ClickHouse Keeper. Hash sums are stored only for the most recent `replicated_deduplication_window` blocks. The oldest hash sums are removed from ClickHouse Keeper.
|
||||
A large number of `replicated_deduplication_window` slows down `Inserts` because it needs to compare more entries.
|
||||
|
||||
@ -2647,7 +2647,7 @@ Default value: 0.
|
||||
|
||||
## input_format_parallel_parsing {#input-format-parallel-parsing}
|
||||
|
||||
Enables or disables order-preserving parallel parsing of data formats. Supported only for [TSV](../../interfaces/formats.md/#tabseparated), [TKSV](../../interfaces/formats.md/#tskv), [CSV](../../interfaces/formats.md/#csv) and [JSONEachRow](../../interfaces/formats.md/#jsoneachrow) formats.
|
||||
Enables or disables order-preserving parallel parsing of data formats. Supported only for [TSV](../../interfaces/formats.md/#tabseparated), [TSKV](../../interfaces/formats.md/#tskv), [CSV](../../interfaces/formats.md/#csv) and [JSONEachRow](../../interfaces/formats.md/#jsoneachrow) formats.
|
||||
|
||||
Possible values:
|
||||
|
||||
@ -2658,7 +2658,7 @@ Default value: `1`.
|
||||
|
||||
## output_format_parallel_formatting {#output-format-parallel-formatting}
|
||||
|
||||
Enables or disables parallel formatting of data formats. Supported only for [TSV](../../interfaces/formats.md/#tabseparated), [TKSV](../../interfaces/formats.md/#tskv), [CSV](../../interfaces/formats.md/#csv) and [JSONEachRow](../../interfaces/formats.md/#jsoneachrow) formats.
|
||||
Enables or disables parallel formatting of data formats. Supported only for [TSV](../../interfaces/formats.md/#tabseparated), [TSKV](../../interfaces/formats.md/#tskv), [CSV](../../interfaces/formats.md/#csv) and [JSONEachRow](../../interfaces/formats.md/#jsoneachrow) formats.
|
||||
|
||||
Possible values:
|
||||
|
||||
@ -4801,6 +4801,14 @@ a Tuple(
|
||||
)
|
||||
```
|
||||
|
||||
## allow_experimental_statistic {#allow_experimental_statistic}
|
||||
|
||||
Allows defining columns with [statistics](../../engines/table-engines/mergetree-family/mergetree.md#table_engine-mergetree-creating-a-table) and [manipulate statistics](../../engines/table-engines/mergetree-family/mergetree.md#column-statistics).
|
||||
|
||||
## allow_statistic_optimize {#allow_statistic_optimize}
|
||||
|
||||
Allows using statistic to optimize the order of [prewhere conditions](../../sql-reference/statements/select/prewhere.md).
|
||||
|
||||
## analyze_index_with_space_filling_curves
|
||||
|
||||
If a table has a space-filling curve in its index, e.g. `ORDER BY mortonEncode(x, y)`, and the query has conditions on its arguments, e.g. `x >= 10 AND x <= 20 AND y >= 20 AND y <= 30`, use the space-filling curve for index analysis.
|
||||
|
||||
54
docs/en/operations/system-tables/async_loader.md
Normal file
54
docs/en/operations/system-tables/async_loader.md
Normal file
@ -0,0 +1,54 @@
|
||||
---
|
||||
slug: /en/operations/system-tables/async_loader
|
||||
---
|
||||
# async_loader
|
||||
|
||||
Contains information and status for recent asynchronous jobs (e.g. for tables loading). The table contains a row for every job. There is a tool for visualizing information from this table `utils/async_loader_graph`.
|
||||
|
||||
Example:
|
||||
|
||||
``` sql
|
||||
SELECT *
|
||||
FROM system.async_loader
|
||||
FORMAT Vertical
|
||||
LIMIT 1
|
||||
```
|
||||
|
||||
``` text
|
||||
```
|
||||
|
||||
Columns:
|
||||
|
||||
- `job` (`String`) - Job name (may be not unique).
|
||||
- `job_id` (`UInt64`) - Unique ID of the job.
|
||||
- `dependencies` (`Array(UInt64)`) - List of IDs of jobs that should be done before this job.
|
||||
- `dependencies_left` (`UInt64`) - Current number of dependencies left to be done.
|
||||
- `status` (`Enum`) - Current load status of a job:
|
||||
`PENDING`: Load job is not started yet.
|
||||
`OK`: Load job executed and was successful.
|
||||
`FAILED`: Load job executed and failed.
|
||||
`CANCELED`: Load job is not going to be executed due to removal or dependency failure.
|
||||
|
||||
A pending job might be in one of the following states:
|
||||
- `is_executing` (`UInt8`) - The job is currently being executed by a worker.
|
||||
- `is_blocked` (`UInt8`) - The job waits for its dependencies to be done.
|
||||
- `is_ready` (`UInt8`) - The job is ready to be executed and waits for a worker.
|
||||
- `elapsed` (`Float64`) - Seconds elapsed since start of execution. Zero if job is not started. Total execution time if job finished.
|
||||
|
||||
Every job has a pool associated with it and is started in this pool. Each pool has a constant priority and a mutable maximum number of workers. Higher priority (lower `priority` value) jobs are run first. No job with lower priority is started while there is at least one higher priority job ready or executing. Job priority can be elevated (but cannot be lowered) by prioritizing it. For example jobs for a table loading and startup will be prioritized if incoming query required this table. It is possible prioritize a job during its execution, but job is not moved from its `execution_pool` to newly assigned `pool`. The job uses `pool` for creating new jobs to avoid priority inversion. Already started jobs are not preempted by higher priority jobs and always run to completion after start.
|
||||
- `pool_id` (`UInt64`) - ID of a pool currently assigned to the job.
|
||||
- `pool` (`String`) - Name of `pool_id` pool.
|
||||
- `priority` (`Int64`) - Priority of `pool_id` pool.
|
||||
- `execution_pool_id` (`UInt64`) - ID of a pool the job is executed in. Equals initially assigned pool before execution starts.
|
||||
- `execution_pool` (`String`) - Name of `execution_pool_id` pool.
|
||||
- `execution_priority` (`Int64`) - Priority of `execution_pool_id` pool.
|
||||
|
||||
- `ready_seqno` (`Nullable(UInt64)`) - Not null for ready jobs. Worker pulls the next job to be executed from a ready queue of its pool. If there are multiple ready jobs, then job with the lowest value of `ready_seqno` is picked.
|
||||
- `waiters` (`UInt64`) - The number of threads waiting on this job.
|
||||
- `exception` (`Nullable(String)`) - Not null for failed and canceled jobs. Holds error message raised during query execution or error leading to cancelling of this job along with dependency failure chain of job names.
|
||||
|
||||
Time instants during job lifetime:
|
||||
- `schedule_time` (`DateTime64`) - Time when job was created and scheduled to be executed (usually with all its dependencies).
|
||||
- `enqueue_time` (`Nullable(DateTime64)`) - Time when job became ready and was enqueued into a ready queue of it's pool. Null if the job is not ready yet.
|
||||
- `start_time` (`Nullable(DateTime64)`) - Time when worker dequeues the job from ready queue and start its execution. Null if the job is not started yet.
|
||||
- `finish_time` (`Nullable(DateTime64)`) - Time when job execution is finished. Null if the job is not finished yet.
|
||||
@ -13,6 +13,7 @@ ClickHouse does not delete data from the table automatically. See [Introduction]
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — The date when the async insert happened.
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the async insert finished execution.
|
||||
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — The date and time when the async insert finished execution with microseconds precision.
|
||||
@ -42,6 +43,7 @@ SELECT * FROM system.asynchronous_insert_log LIMIT 1 \G;
|
||||
Result:
|
||||
|
||||
``` text
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-06-08
|
||||
event_time: 2023-06-08 10:08:53
|
||||
event_time_microseconds: 2023-06-08 10:08:53.199516
|
||||
|
||||
@ -7,6 +7,7 @@ Contains the historical values for `system.asynchronous_metrics`, which are save
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — Event date.
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — Event time.
|
||||
- `name` ([String](../../sql-reference/data-types/string.md)) — Metric name.
|
||||
@ -15,22 +16,33 @@ Columns:
|
||||
**Example**
|
||||
|
||||
``` sql
|
||||
SELECT * FROM system.asynchronous_metric_log LIMIT 10
|
||||
SELECT * FROM system.asynchronous_metric_log LIMIT 3 \G
|
||||
```
|
||||
|
||||
``` text
|
||||
┌─event_date─┬──────────event_time─┬─name─────────────────────────────────────┬─────value─┐
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ CPUFrequencyMHz_0 │ 2120.9 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.arenas.all.pmuzzy │ 743 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.arenas.all.pdirty │ 26288 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.background_thread.run_intervals │ 0 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.background_thread.num_runs │ 0 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.retained │ 60694528 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.mapped │ 303161344 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.resident │ 260931584 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.metadata │ 12079488 │
|
||||
│ 2020-09-05 │ 2020-09-05 15:56:30 │ jemalloc.allocated │ 133756128 │
|
||||
└────────────┴─────────────────────┴──────────────────────────────────────────┴───────────┘
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-11-14
|
||||
event_time: 2023-11-14 14:39:07
|
||||
metric: AsynchronousHeavyMetricsCalculationTimeSpent
|
||||
value: 0.001
|
||||
|
||||
Row 2:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-11-14
|
||||
event_time: 2023-11-14 14:39:08
|
||||
metric: AsynchronousHeavyMetricsCalculationTimeSpent
|
||||
value: 0
|
||||
|
||||
Row 3:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-11-14
|
||||
event_time: 2023-11-14 14:39:09
|
||||
metric: AsynchronousHeavyMetricsCalculationTimeSpent
|
||||
value: 0
|
||||
```
|
||||
|
||||
**See Also**
|
||||
|
||||
@ -7,6 +7,7 @@ Contains logging entries with the information about `BACKUP` and `RESTORE` opera
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — Date of the entry.
|
||||
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — Time of the entry with microseconds precision.
|
||||
- `id` ([String](../../sql-reference/data-types/string.md)) — Identifier of the backup or restore operation.
|
||||
@ -45,6 +46,7 @@ SELECT * FROM system.backup_log WHERE id = 'e5b74ecb-f6f1-426a-80be-872f90043885
|
||||
```response
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-08-19
|
||||
event_time_microseconds: 2023-08-19 11:05:21.998566
|
||||
id: e5b74ecb-f6f1-426a-80be-872f90043885
|
||||
@ -63,6 +65,7 @@ bytes_read: 0
|
||||
|
||||
Row 2:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-08-19
|
||||
event_time_microseconds: 2023-08-19 11:08:56.916192
|
||||
id: e5b74ecb-f6f1-426a-80be-872f90043885
|
||||
@ -93,6 +96,7 @@ SELECT * FROM system.backup_log WHERE id = 'cdf1f731-52ef-42da-bc65-2e1bfcd4ce90
|
||||
```response
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-08-19
|
||||
event_time_microseconds: 2023-08-19 11:09:19.718077
|
||||
id: cdf1f731-52ef-42da-bc65-2e1bfcd4ce90
|
||||
@ -111,6 +115,7 @@ bytes_read: 0
|
||||
|
||||
Row 2:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2023-08-19
|
||||
event_time_microseconds: 2023-08-19 11:09:29.334234
|
||||
id: cdf1f731-52ef-42da-bc65-2e1bfcd4ce90
|
||||
|
||||
@ -7,6 +7,7 @@ Contains information about stack traces for fatal errors. The table does not exi
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([DateTime](../../sql-reference/data-types/datetime.md)) — Date of the event.
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — Time of the event.
|
||||
- `timestamp_ns` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Timestamp of the event with nanoseconds.
|
||||
@ -32,6 +33,7 @@ Result (not full):
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2020-10-14
|
||||
event_time: 2020-10-14 15:47:40
|
||||
timestamp_ns: 1602679660271312710
|
||||
|
||||
@ -6,6 +6,7 @@ slug: /en/operations/system-tables/metric_log
|
||||
Contains history of metrics values from tables `system.metrics` and `system.events`, periodically flushed to disk.
|
||||
|
||||
Columns:
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — Event date.
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — Event time.
|
||||
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — Event time with microseconds resolution.
|
||||
@ -19,6 +20,7 @@ SELECT * FROM system.metric_log LIMIT 1 FORMAT Vertical;
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2020-09-05
|
||||
event_time: 2020-09-05 16:22:33
|
||||
event_time_microseconds: 2020-09-05 16:22:33.196807
|
||||
|
||||
@ -45,6 +45,22 @@ Number of threads in the Aggregator thread pool.
|
||||
|
||||
Number of threads in the Aggregator thread pool running a task.
|
||||
|
||||
### TablesLoaderForegroundThreads
|
||||
|
||||
Number of threads in the async loader foreground thread pool.
|
||||
|
||||
### TablesLoaderForegroundThreadsActive
|
||||
|
||||
Number of threads in the async loader foreground thread pool running a task.
|
||||
|
||||
### TablesLoaderBackgroundThreads
|
||||
|
||||
Number of threads in the async loader background thread pool.
|
||||
|
||||
### TablesLoaderBackgroundThreadsActive
|
||||
|
||||
Number of threads in the async loader background thread pool running a task.
|
||||
|
||||
### AsyncInsertCacheSize
|
||||
|
||||
Number of async insert hash id in cache
|
||||
@ -197,14 +213,6 @@ Number of threads in the DatabaseOnDisk thread pool.
|
||||
|
||||
Number of threads in the DatabaseOnDisk thread pool running a task.
|
||||
|
||||
### DatabaseOrdinaryThreads
|
||||
|
||||
Number of threads in the Ordinary database thread pool.
|
||||
|
||||
### DatabaseOrdinaryThreadsActive
|
||||
|
||||
Number of threads in the Ordinary database thread pool running a task.
|
||||
|
||||
### DelayedInserts
|
||||
|
||||
Number of INSERT queries that are throttled due to high number of active data parts for partition in a MergeTree table.
|
||||
@ -625,14 +633,6 @@ Number of connections that are sending data for external tables to remote server
|
||||
|
||||
Number of connections that are sending data for scalars to remote servers.
|
||||
|
||||
### StartupSystemTablesThreads
|
||||
|
||||
Number of threads in the StartupSystemTables thread pool.
|
||||
|
||||
### StartupSystemTablesThreadsActive
|
||||
|
||||
Number of threads in the StartupSystemTables thread pool running a task.
|
||||
|
||||
### StorageBufferBytes
|
||||
|
||||
Number of bytes in buffers of Buffer tables
|
||||
@ -677,14 +677,6 @@ Number of threads in the system.replicas thread pool running a task.
|
||||
|
||||
Number of connections to TCP server (clients with native interface), also included server-server distributed query connections
|
||||
|
||||
### TablesLoaderThreads
|
||||
|
||||
Number of threads in the tables loader thread pool.
|
||||
|
||||
### TablesLoaderThreadsActive
|
||||
|
||||
Number of threads in the tables loader thread pool running a task.
|
||||
|
||||
### TablesToDropQueueSize
|
||||
|
||||
Number of dropped tables, that are waiting for background data removal.
|
||||
|
||||
@ -31,3 +31,26 @@ SELECT * FROM system.numbers LIMIT 10;
|
||||
|
||||
10 rows in set. Elapsed: 0.001 sec.
|
||||
```
|
||||
|
||||
You can also limit the output by predicates.
|
||||
|
||||
```sql
|
||||
SELECT * FROM system.numbers < 10;
|
||||
```
|
||||
|
||||
```response
|
||||
┌─number─┐
|
||||
│ 0 │
|
||||
│ 1 │
|
||||
│ 2 │
|
||||
│ 3 │
|
||||
│ 4 │
|
||||
│ 5 │
|
||||
│ 6 │
|
||||
│ 7 │
|
||||
│ 8 │
|
||||
│ 9 │
|
||||
└────────┘
|
||||
|
||||
10 rows in set. Elapsed: 0.001 sec.
|
||||
```
|
||||
|
||||
@ -8,28 +8,19 @@ Contains information about [trace spans](https://opentracing.io/docs/overview/sp
|
||||
Columns:
|
||||
|
||||
- `trace_id` ([UUID](../../sql-reference/data-types/uuid.md)) — ID of the trace for executed query.
|
||||
|
||||
- `span_id` ([UInt64](../../sql-reference/data-types/int-uint.md)) — ID of the `trace span`.
|
||||
|
||||
- `parent_span_id` ([UInt64](../../sql-reference/data-types/int-uint.md)) — ID of the parent `trace span`.
|
||||
|
||||
- `operation_name` ([String](../../sql-reference/data-types/string.md)) — The name of the operation.
|
||||
|
||||
- `kind` ([Enum8](../../sql-reference/data-types/enum.md)) — The [SpanKind](https://opentelemetry.io/docs/reference/specification/trace/api/#spankind) of the span.
|
||||
- `INTERNAL` — Indicates that the span represents an internal operation within an application.
|
||||
- `SERVER` — Indicates that the span covers server-side handling of a synchronous RPC or other remote request.
|
||||
- `CLIENT` — Indicates that the span describes a request to some remote service.
|
||||
- `PRODUCER` — Indicates that the span describes the initiators of an asynchronous request. This parent span will often end before the corresponding child CONSUMER span, possibly even before the child span starts.
|
||||
- `CONSUMER` - Indicates that the span describes a child of an asynchronous PRODUCER request.
|
||||
|
||||
- `start_time_us` ([UInt64](../../sql-reference/data-types/int-uint.md)) — The start time of the `trace span` (in microseconds).
|
||||
|
||||
- `finish_time_us` ([UInt64](../../sql-reference/data-types/int-uint.md)) — The finish time of the `trace span` (in microseconds).
|
||||
|
||||
- `finish_date` ([Date](../../sql-reference/data-types/date.md)) — The finish date of the `trace span`.
|
||||
|
||||
- `attribute.names` ([Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md))) — [Attribute](https://opentelemetry.io/docs/go/instrumentation/#attributes) names depending on the `trace span`. They are filled in according to the recommendations in the [OpenTelemetry](https://opentelemetry.io/) standard.
|
||||
|
||||
- `attribute.values` ([Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md))) — Attribute values depending on the `trace span`. They are filled in according to the recommendations in the `OpenTelemetry` standard.
|
||||
|
||||
**Example**
|
||||
|
||||
@ -9,6 +9,7 @@ This table contains information about events that occurred with [data parts](../
|
||||
|
||||
The `system.part_log` table contains the following columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `query_id` ([String](../../sql-reference/data-types/string.md)) — Identifier of the `INSERT` query that created this data part.
|
||||
- `event_type` ([Enum8](../../sql-reference/data-types/enum.md)) — Type of the event that occurred with the data part. Can have one of the following values:
|
||||
- `NewPart` — Inserting of a new data part.
|
||||
@ -56,13 +57,14 @@ SELECT * FROM system.part_log LIMIT 1 FORMAT Vertical;
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
query_id: 983ad9c7-28d5-4ae1-844e-603116b7de31
|
||||
event_type: NewPart
|
||||
merge_reason: NotAMerge
|
||||
merge_algorithm: Undecided
|
||||
event_date: 2021-02-02
|
||||
event_time: 2021-02-02 11:14:28
|
||||
event_time_microseconds: 2021-02-02 11:14:28.861919
|
||||
event_time_microseconds: 2021-02-02 11:14:28.861919
|
||||
duration_ms: 35
|
||||
database: default
|
||||
table: log_mt_2
|
||||
|
||||
@ -4,6 +4,7 @@ This table contains profiling on processors level (that you can find in [`EXPLAI
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — The date when the event happened.
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the event happened.
|
||||
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — The date and time with microseconds precision when the event happened.
|
||||
|
||||
@ -34,6 +34,7 @@ You can use the [log_formatted_queries](../../operations/settings/settings.md#se
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `type` ([Enum8](../../sql-reference/data-types/enum.md)) — Type of an event that occurred when executing the query. Values:
|
||||
- `'QueryStart' = 1` — Successful start of query execution.
|
||||
- `'QueryFinish' = 2` — Successful end of query execution.
|
||||
@ -127,6 +128,7 @@ SELECT * FROM system.query_log WHERE type = 'QueryFinish' ORDER BY query_start_t
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
type: QueryFinish
|
||||
event_date: 2021-11-03
|
||||
event_time: 2021-11-03 16:13:54
|
||||
@ -167,7 +169,7 @@ initial_query_start_time: 2021-11-03 16:13:54
|
||||
initial_query_start_time_microseconds: 2021-11-03 16:13:54.952325
|
||||
interface: 1
|
||||
os_user: sevirov
|
||||
client_hostname: clickhouse.ru-central1.internal
|
||||
client_hostname: clickhouse.eu-central1.internal
|
||||
client_name: ClickHouse
|
||||
client_revision: 54449
|
||||
client_version_major: 21
|
||||
|
||||
@ -18,6 +18,7 @@ You can use the [log_queries_probability](../../operations/settings/settings.md#
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — The date when the thread has finished execution of the query.
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the thread has finished execution of the query.
|
||||
- `event_time_microsecinds` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the thread has finished execution of the query with microseconds precision.
|
||||
@ -74,6 +75,7 @@ Columns:
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2020-09-11
|
||||
event_time: 2020-09-11 10:08:17
|
||||
event_time_microseconds: 2020-09-11 10:08:17.134042
|
||||
|
||||
@ -18,6 +18,7 @@ You can use the [log_queries_probability](../../operations/settings/settings.md#
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — The date when the last event of the view happened.
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the view finished execution.
|
||||
- `event_time_microseconds` ([DateTime](../../sql-reference/data-types/datetime.md)) — The date and time when the view finished execution with microseconds precision.
|
||||
@ -59,6 +60,7 @@ Result:
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2021-06-22
|
||||
event_time: 2021-06-22 13:23:07
|
||||
event_time_microseconds: 2021-06-22 13:23:07.738221
|
||||
|
||||
@ -7,6 +7,7 @@ Contains information about all successful and failed login and logout events.
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `type` ([Enum8](../../sql-reference/data-types/enum.md)) — Login/logout result. Possible values:
|
||||
- `LoginFailure` — Login error.
|
||||
- `LoginSuccess` — Successful login.
|
||||
@ -57,6 +58,7 @@ Result:
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
type: LoginSuccess
|
||||
auth_id: 45e6bd83-b4aa-4a23-85e6-bd83b4aa1a23
|
||||
session_id:
|
||||
|
||||
@ -17,7 +17,7 @@ Columns:
|
||||
- `UNKNOWN`
|
||||
- `max_data_part_size` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Maximum size of a data part that can be stored on volume disks (0 — no limit).
|
||||
- `move_factor` ([Float64](../../sql-reference/data-types/float.md)) — Ratio of free disk space. When the ratio exceeds the value of configuration parameter, ClickHouse start to move data to the next volume in order.
|
||||
- `prefer_not_to_merge` ([UInt8](../../sql-reference/data-types/int-uint.md)) — Value of the `prefer_not_to_merge` setting. When this setting is enabled, merging data on this volume is not allowed. This allows controlling how ClickHouse works with slow disks.
|
||||
- `prefer_not_to_merge` ([UInt8](../../sql-reference/data-types/int-uint.md)) — Value of the `prefer_not_to_merge` setting. Should be always false. When this setting is enabled, you did a mistake.
|
||||
- `perform_ttl_move_on_insert` ([UInt8](../../sql-reference/data-types/int-uint.md)) — Value of the `perform_ttl_move_on_insert` setting. — Disables TTL move on data part INSERT. By default if we insert a data part that already expired by the TTL move rule it immediately goes to a volume/disk declared in move rule. This can significantly slowdown insert in case if destination volume/disk is slow (e.g. S3).
|
||||
- `load_balancing` ([Enum8](../../sql-reference/data-types/enum.md)) — Policy for disk balancing. Can have one of the following values:
|
||||
- `ROUND_ROBIN`
|
||||
|
||||
@ -7,6 +7,7 @@ Contains logging entries. The logging level which goes to this table can be limi
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` (Date) — Date of the entry.
|
||||
- `event_time` (DateTime) — Time of the entry.
|
||||
- `event_time_microseconds` (DateTime) — Time of the entry with microseconds precision.
|
||||
@ -39,6 +40,7 @@ SELECT * FROM system.text_log LIMIT 1 \G
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2020-09-10
|
||||
event_time: 2020-09-10 11:23:07
|
||||
event_time_microseconds: 2020-09-10 11:23:07.871397
|
||||
|
||||
@ -12,37 +12,27 @@ To analyze logs, use the `addressToLine`, `addressToLineWithInlines`, `addressTo
|
||||
|
||||
Columns:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — Date of sampling moment.
|
||||
|
||||
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — Timestamp of the sampling moment.
|
||||
|
||||
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — Timestamp of the sampling moment with microseconds precision.
|
||||
|
||||
- `timestamp_ns` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Timestamp of the sampling moment in nanoseconds.
|
||||
|
||||
- `revision` ([UInt32](../../sql-reference/data-types/int-uint.md)) — ClickHouse server build revision.
|
||||
|
||||
When connecting to the server by `clickhouse-client`, you see the string similar to `Connected to ClickHouse server version 19.18.1 revision 54429.`. This field contains the `revision`, but not the `version` of a server.
|
||||
When connecting to the server by `clickhouse-client`, you see the string similar to `Connected to ClickHouse server version 19.18.1.`. This field contains the `revision`, but not the `version` of a server.
|
||||
|
||||
- `trace_type` ([Enum8](../../sql-reference/data-types/enum.md)) — Trace type:
|
||||
|
||||
- `Real` represents collecting stack traces by wall-clock time.
|
||||
- `CPU` represents collecting stack traces by CPU time.
|
||||
- `Memory` represents collecting allocations and deallocations when memory allocation exceeds the subsequent watermark.
|
||||
- `MemorySample` represents collecting random allocations and deallocations.
|
||||
- `MemoryPeak` represents collecting updates of peak memory usage.
|
||||
- `ProfileEvent` represents collecting of increments of profile events.
|
||||
|
||||
- `thread_id` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Thread identifier.
|
||||
|
||||
- `query_id` ([String](../../sql-reference/data-types/string.md)) — Query identifier that can be used to get details about a query that was running from the [query_log](#system_tables-query_log) system table.
|
||||
|
||||
- `trace` ([Array(UInt64)](../../sql-reference/data-types/array.md)) — Stack trace at the moment of sampling. Each element is a virtual memory address inside ClickHouse server process.
|
||||
|
||||
- `size` ([Int64](../../sql-reference/data-types/int-uint.md)) - For trace types `Memory`, `MemorySample` or `MemoryPeak` is the amount of memory allocated, for other trace types is 0.
|
||||
|
||||
- `event` ([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md)) - For trace type `ProfileEvent` is the name of updated profile event, for other trace types is an empty string.
|
||||
|
||||
- `increment` ([UInt64](../../sql-reference/data-types/int-uint.md)) - For trace type `ProfileEvent` is the amount of increment of profile event, for other trace types is 0.
|
||||
|
||||
**Example**
|
||||
@ -54,6 +44,7 @@ SELECT * FROM system.trace_log LIMIT 1 \G
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
event_date: 2020-09-10
|
||||
event_time: 2020-09-10 11:23:09
|
||||
event_time_microseconds: 2020-09-10 11:23:09.872924
|
||||
|
||||
@ -9,6 +9,7 @@ For requests, only columns with request parameters are filled in, and the remain
|
||||
|
||||
Columns with request parameters:
|
||||
|
||||
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
||||
- `type` ([Enum](../../sql-reference/data-types/enum.md)) — Event type in the ZooKeeper client. Can have one of the following values:
|
||||
- `Request` — The request has been sent.
|
||||
- `Response` — The response was received.
|
||||
@ -63,6 +64,7 @@ Result:
|
||||
``` text
|
||||
Row 1:
|
||||
──────
|
||||
hostname: clickhouse.eu-central1.internal
|
||||
type: Request
|
||||
event_date: 2021-08-09
|
||||
event_time: 2021-08-09 21:38:30.291792
|
||||
|
||||
@ -93,7 +93,7 @@ While ClickHouse can work over NFS, it is not the best idea.
|
||||
|
||||
## Linux Kernel {#linux-kernel}
|
||||
|
||||
Don’t use an outdated Linux kernel.
|
||||
Don't use an outdated Linux kernel.
|
||||
|
||||
## Network {#network}
|
||||
|
||||
|
||||
@ -487,24 +487,23 @@ Where:
|
||||
|
||||
## uniqUpTo(N)(x)
|
||||
|
||||
Calculates the number of different argument values if it is less than or equal to N. If the number of different argument values is greater than N, it returns N + 1.
|
||||
Calculates the number of different values of the argument up to a specified limit, `N`. If the number of different argument values is greater than `N`, this function returns `N` + 1, otherwise it calculates the exact value.
|
||||
|
||||
Recommended for use with small Ns, up to 10. The maximum value of N is 100.
|
||||
Recommended for use with small `N`s, up to 10. The maximum value of `N` is 100.
|
||||
|
||||
For the state of an aggregate function, it uses the amount of memory equal to 1 + N \* the size of one value of bytes.
|
||||
For strings, it stores a non-cryptographic hash of 8 bytes. That is, the calculation is approximated for strings.
|
||||
For the state of an aggregate function, this function uses the amount of memory equal to 1 + `N` \* the size of one value of bytes.
|
||||
When dealing with strings, this function stores a non-cryptographic hash of 8 bytes; the calculation is approximated for strings.
|
||||
|
||||
The function also works for several arguments.
|
||||
For example, if you had a table that logs every search query made by users on your website. Each row in the table represents a single search query, with columns for the user ID, the search query, and the timestamp of the query. You can use `uniqUpTo` to generate a report that shows only the keywords that produced at least 5 unique users.
|
||||
|
||||
It works as fast as possible, except for cases when a large N value is used and the number of unique values is slightly less than N.
|
||||
|
||||
Usage example:
|
||||
|
||||
``` text
|
||||
Problem: Generate a report that shows only keywords that produced at least 5 unique users.
|
||||
Solution: Write in the GROUP BY query SearchPhrase HAVING uniqUpTo(4)(UserID) >= 5
|
||||
```sql
|
||||
SELECT SearchPhrase
|
||||
FROM SearchLog
|
||||
GROUP BY SearchPhrase
|
||||
HAVING uniqUpTo(4)(UserID) >= 5
|
||||
```
|
||||
|
||||
`uniqUpTo(4)(UserID)` calculates the number of unique `UserID` values for each `SearchPhrase`, but it only counts up to 4 unique values. If there are more than 4 unique `UserID` values for a `SearchPhrase`, the function returns 5 (4 + 1). The `HAVING` clause then filters out the `SearchPhrase` values for which the number of unique `UserID` values is less than 5. This will give you a list of search keywords that were used by at least 5 unique users.
|
||||
|
||||
## sumMapFiltered(keys_to_keep)(keys, values)
|
||||
|
||||
|
||||
@ -5,7 +5,12 @@ sidebar_position: 6
|
||||
|
||||
# any
|
||||
|
||||
Selects the first encountered (non-NULL) value, unless all rows have NULL values in that column.
|
||||
Selects the first encountered value of a column.
|
||||
|
||||
By default, it ignores NULL values and returns the first NOT NULL value found in the column. As [`first_value`](../../../sql-reference/aggregate-functions/reference/first_value.md) if supports `RESPECT NULLS`, in which case it will select the first value passed, independently on whether it's NULL or not.
|
||||
|
||||
The return type of the function is the same as the input, except for LowCardinality which is discarded). This means that given no rows as input it will return the default value of that type (0 for integers, or Null for a Nullable() column). You might use the `-OrNull` [combinator](../../../sql-reference/aggregate-functions/combinators.md) ) to modify this behaviour.
|
||||
|
||||
The query can be executed in any order and even in a different order each time, so the result of this function is indeterminate.
|
||||
To get a determinate result, you can use the ‘min’ or ‘max’ function instead of ‘any’.
|
||||
|
||||
@ -13,4 +18,4 @@ In some cases, you can rely on the order of execution. This applies to cases whe
|
||||
|
||||
When a `SELECT` query has the `GROUP BY` clause or at least one aggregate function, ClickHouse (in contrast to MySQL) requires that all expressions in the `SELECT`, `HAVING`, and `ORDER BY` clauses be calculated from keys or from aggregate functions. In other words, each column selected from the table must be used either in keys or inside aggregate functions. To get behavior like in MySQL, you can put the other columns in the `any` aggregate function.
|
||||
|
||||
- Alias: `any_value`
|
||||
- Alias: `any_value`, `first_value`.
|
||||
|
||||
@ -5,9 +5,12 @@ sidebar_position: 7
|
||||
|
||||
# first_value
|
||||
|
||||
Selects the first encountered value, similar to `any`, but could accept NULL.
|
||||
Mostly it should be used with [Window Functions](../../window-functions/index.md).
|
||||
Without Window Functions the result will be random if the source stream is not ordered.
|
||||
It is an alias for [`any`](../../../sql-reference/aggregate-functions/reference/any.md) but it was introduced for compatibility with [Window Functions](../../window-functions/index.md), where sometimes it's necessary to process `NULL` values (by default all ClickHouse aggregate functions ignore NULL values).
|
||||
|
||||
It supports declaring a modifier to respect nulls (`RESPECT NULLS`), both under [Window Functions](../../window-functions/index.md) and in normal aggregations.
|
||||
|
||||
As with `any`, without Window Functions the result will be random if the source stream is not ordered and the return type
|
||||
matches the input type (Null is only returned if the input is Nullable or -OrNull combinator is added).
|
||||
|
||||
## examples
|
||||
|
||||
@ -23,15 +26,15 @@ INSERT INTO test_data (a, b) Values (1,null), (2,3), (4, 5), (6,null);
|
||||
```
|
||||
|
||||
### example1
|
||||
The NULL value is ignored at default.
|
||||
By default, the NULL value is ignored.
|
||||
```sql
|
||||
select first_value(b) from test_data;
|
||||
```
|
||||
|
||||
```text
|
||||
┌─first_value_ignore_nulls(b)─┐
|
||||
│ 3 │
|
||||
└─────────────────────────────┘
|
||||
┌─any(b)─┐
|
||||
│ 3 │
|
||||
└────────┘
|
||||
```
|
||||
|
||||
### example2
|
||||
@ -41,9 +44,9 @@ select first_value(b) ignore nulls from test_data
|
||||
```
|
||||
|
||||
```text
|
||||
┌─first_value_ignore_nulls(b)─┐
|
||||
│ 3 │
|
||||
└─────────────────────────────┘
|
||||
┌─any(b) IGNORE NULLS ─┐
|
||||
│ 3 │
|
||||
└──────────────────────┘
|
||||
```
|
||||
|
||||
### example3
|
||||
@ -53,9 +56,9 @@ select first_value(b) respect nulls from test_data
|
||||
```
|
||||
|
||||
```text
|
||||
┌─first_value_respect_nulls(b)─┐
|
||||
│ ᴺᵁᴸᴸ │
|
||||
└──────────────────────────────┘
|
||||
┌─any(b) RESPECT NULLS ─┐
|
||||
│ ᴺᵁᴸᴸ │
|
||||
└───────────────────────┘
|
||||
```
|
||||
|
||||
### example4
|
||||
@ -73,8 +76,8 @@ FROM
|
||||
```
|
||||
|
||||
```text
|
||||
┌─first_value_respect_nulls(b)─┬─first_value(b)─┐
|
||||
│ ᴺᵁᴸᴸ │ 3 │
|
||||
└──────────────────────────────┴────────────────┘
|
||||
┌─any_respect_nulls(b)─┬─any(b)─┐
|
||||
│ ᴺᵁᴸᴸ │ 3 │
|
||||
└──────────────────────┴────────┘
|
||||
```
|
||||
|
||||
|
||||
@ -56,7 +56,7 @@ Functions:
|
||||
|
||||
## Related content
|
||||
|
||||
- [Reducing ClickHouse Storage Cost with the Low Cardinality Type – Lessons from an Instana Engineer](https://www.instana.com/blog/reducing-clickhouse-storage-cost-with-the-low-cardinality-type-lessons-from-an-instana-engineer/)
|
||||
- [Reducing ClickHouse Storage Cost with the Low Cardinality Type – Lessons from an Instana Engineer](https://altinity.com/blog/2020-5-20-reducing-clickhouse-storage-cost-with-the-low-cardinality-type-lessons-from-an-instana-engineer)
|
||||
- [String Optimization (video presentation in Russian)](https://youtu.be/rqf-ILRgBdY?list=PL0Z2YDlm0b3iwXCpEFiOOYmwXzVmjJfEt). [Slides in English](https://github.com/ClickHouse/clickhouse-presentations/raw/master/meetup19/string_optimization.pdf)
|
||||
- Blog: [Optimizing ClickHouse with Schemas and Codecs](https://clickhouse.com/blog/optimize-clickhouse-codecs-compression-schema)
|
||||
- Blog: [Working with time series data in ClickHouse](https://clickhouse.com/blog/working-with-time-series-data-and-functions-ClickHouse)
|
||||
|
||||
@ -1083,7 +1083,7 @@ Result:
|
||||
|
||||
**See also**
|
||||
|
||||
- [arrayFold](#arrayFold)
|
||||
- [arrayFold](#arrayfold)
|
||||
|
||||
## arrayReduceInRanges
|
||||
|
||||
@ -1175,7 +1175,7 @@ FROM numbers(1,10);
|
||||
|
||||
**See also**
|
||||
|
||||
- [arrayReduce](#arrayReduce)
|
||||
- [arrayReduce](#arrayreduce)
|
||||
|
||||
## arrayReverse(arr)
|
||||
|
||||
|
||||
@ -20,7 +20,7 @@ Strings are compared byte-by-byte. Note that this may lead to unexpected results
|
||||
|
||||
A string S1 which has another string S2 as prefix is considered longer than S2.
|
||||
|
||||
## equals, `=`, `==` operators
|
||||
## equals, `=`, `==` operators {#equals}
|
||||
|
||||
**Syntax**
|
||||
|
||||
@ -32,7 +32,7 @@ Alias:
|
||||
- `a = b` (operator)
|
||||
- `a == b` (operator)
|
||||
|
||||
## notEquals, `!=`, `<>` operators
|
||||
## notEquals, `!=`, `<>` operators {#notequals}
|
||||
|
||||
**Syntax**
|
||||
|
||||
@ -44,7 +44,7 @@ Alias:
|
||||
- `a != b` (operator)
|
||||
- `a <> b` (operator)
|
||||
|
||||
## less, `<` operator
|
||||
## less, `<` operator {#less}
|
||||
|
||||
**Syntax**
|
||||
|
||||
@ -55,7 +55,7 @@ less(a, b)
|
||||
Alias:
|
||||
- `a < b` (operator)
|
||||
|
||||
## greater, `>` operator
|
||||
## greater, `>` operator {#greater}
|
||||
|
||||
**Syntax**
|
||||
|
||||
@ -66,7 +66,7 @@ greater(a, b)
|
||||
Alias:
|
||||
- `a > b` (operator)
|
||||
|
||||
## lessOrEquals, `<=` operator
|
||||
## lessOrEquals, `<=` operator {#lessorequals}
|
||||
|
||||
**Syntax**
|
||||
|
||||
@ -77,7 +77,7 @@ lessOrEquals(a, b)
|
||||
Alias:
|
||||
- `a <= b` (operator)
|
||||
|
||||
## greaterOrEquals, `>=` operator
|
||||
## greaterOrEquals, `>=` operator {#greaterorequals}
|
||||
|
||||
**Syntax**
|
||||
|
||||
|
||||
@ -2533,13 +2533,14 @@ formatDateTime(Time, Format[, Timezone])
|
||||
Returns time and date values according to the determined format.
|
||||
|
||||
**Replacement fields**
|
||||
|
||||
Using replacement fields, you can define a pattern for the resulting string. “Example” column shows formatting result for `2018-01-02 22:33:44`.
|
||||
|
||||
| Placeholder | Description | Example |
|
||||
| Placeholder | Description | Example |
|
||||
|----------|---------------------------------------------------------|------------|
|
||||
| %a | abbreviated weekday name (Mon-Sun) | Mon |
|
||||
| %b | abbreviated month name (Jan-Dec) | Jan |
|
||||
| %c | month as an integer number (01-12) | 01 |
|
||||
| %c | month as an integer number (01-12), see 'Note 3' below | 01 |
|
||||
| %C | year divided by 100 and truncated to integer (00-99) | 20 |
|
||||
| %d | day of the month, zero-padded (01-31) | 02 |
|
||||
| %D | Short MM/DD/YY date, equivalent to %m/%d/%y | 01/02/18 |
|
||||
@ -2553,8 +2554,8 @@ Using replacement fields, you can define a pattern for the resulting string. “
|
||||
| %i | minute (00-59) | 33 |
|
||||
| %I | hour in 12h format (01-12) | 10 |
|
||||
| %j | day of the year (001-366) | 002 |
|
||||
| %k | hour in 24h format (00-23) | 22 |
|
||||
| %l | hour in 12h format (01-12) | 09 |
|
||||
| %k | hour in 24h format (00-23), see 'Note 3' below | 14 |
|
||||
| %l | hour in 12h format (01-12), see 'Note 3' below | 09 |
|
||||
| %m | month as an integer number (01-12) | 01 |
|
||||
| %M | full month name (January-December), see 'Note 2' below | January |
|
||||
| %n | new-line character (‘’) | |
|
||||
@ -2579,6 +2580,8 @@ Note 1: In ClickHouse versions earlier than v23.4, `%f` prints a single zero (0)
|
||||
|
||||
Note 2: In ClickHouse versions earlier than v23.4, `%M` prints the minute (00-59) instead of the full month name (January-December). The previous behavior can be restored using setting `formatdatetime_parsedatetime_m_is_month_name = 0`.
|
||||
|
||||
Note 3: In ClickHouse versions earlier than v23.11, function `parseDateTime()` required leading zeros for formatters `%c` (month) and `%l`/`%k` (hour), e.g. `07`. In later versions, the leading zero may be omitted, e.g. `7`. The previous behavior can be restored using setting `parsedatetime_parse_without_leading_zeros = 0`. Note that function `formatDateTime()` by default still prints leading zeros for `%c` and `%l`/`%k` to not break existing use cases. This behavior can be changed by setting `formatdatetime_format_without_leading_zeros = 1`.
|
||||
|
||||
**Example**
|
||||
|
||||
``` sql
|
||||
|
||||
@ -164,7 +164,7 @@ Consider a list of contacts that may specify multiple ways to contact a customer
|
||||
└──────────┴──────┴───────────┴───────────┘
|
||||
```
|
||||
|
||||
The `mail` and `phone` fields are of type String, but the `icq` field is `UInt32`, so it needs to be converted to `String`.
|
||||
The `mail` and `phone` fields are of type String, but the `telegram` field is `UInt32`, so it needs to be converted to `String`.
|
||||
|
||||
Get the first available contact method for the customer from the contact list:
|
||||
|
||||
|
||||
@ -1776,3 +1776,33 @@ Result:
|
||||
│ (('queries','database','analytical'),('oriented','processing','DBMS')) │
|
||||
└────────────────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
## sqid
|
||||
|
||||
Transforms numbers into YouTube-like short URL hash called [Sqid](https://sqids.org/).
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
sqid(number1, ...)
|
||||
```
|
||||
|
||||
**Arguments**
|
||||
|
||||
- A variable number of UInt8, UInt16, UInt32 or UInt64 numbers.
|
||||
|
||||
**Returned Value**
|
||||
|
||||
A hash id [String](/docs/en/sql-reference/data-types/string.md).
|
||||
|
||||
**Example**
|
||||
|
||||
```sql
|
||||
SELECT sqid(1, 2, 3, 4, 5);
|
||||
```
|
||||
|
||||
```response
|
||||
┌─sqid(1, 2, 3, 4, 5)─┐
|
||||
│ gXHfJ1C6dN │
|
||||
└─────────────────────┘
|
||||
```
|
||||
|
||||
@ -628,6 +628,8 @@ SELECT
|
||||
formatReadableSize(filesize_bytes) AS filesize
|
||||
```
|
||||
|
||||
Alias: `FORMAT_BYTES`.
|
||||
|
||||
``` text
|
||||
┌─filesize_bytes─┬─filesize───┐
|
||||
│ 1 │ 1.00 B │
|
||||
|
||||
@ -1,47 +0,0 @@
|
||||
---
|
||||
slug: /en/sql-reference/functions/time-series-functions
|
||||
sidebar_position: 172
|
||||
sidebar_label: Time Series
|
||||
---
|
||||
|
||||
# Time Series Functions
|
||||
|
||||
Below functions are used for time series analysis.
|
||||
|
||||
## seriesPeriodDetectFFT
|
||||
|
||||
Finds the period of the given time series data using FFT
|
||||
Detect Period in time series data using FFT.
|
||||
FFT - Fast Fourier transform (https://en.wikipedia.org/wiki/Fast_Fourier_transform)
|
||||
|
||||
**Syntax**
|
||||
|
||||
``` sql
|
||||
seriesPeriodDetectFFT(series);
|
||||
```
|
||||
|
||||
**Arguments**
|
||||
|
||||
- `series` - An array of numeric values
|
||||
|
||||
**Returned value**
|
||||
|
||||
- A real value equal to the period of time series
|
||||
|
||||
Type: [Float64](../../sql-reference/data-types/float.md).
|
||||
|
||||
**Examples**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT seriesPeriodDetectFFT([1, 4, 6, 1, 4, 6, 1, 4, 6, 1, 4, 6, 1, 4, 6, 1, 4, 6, 1, 4, 6]) AS print_0;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌───────────print_0──────┐
|
||||
│ 3 │
|
||||
└────────────────────────┘
|
||||
```
|
||||
@ -5,7 +5,7 @@ slug: /en/sql-reference/operators/exists
|
||||
|
||||
The `EXISTS` operator checks how many records are in the result of a subquery. If it is empty, then the operator returns `0`. Otherwise, it returns `1`.
|
||||
|
||||
`EXISTS` can be used in a [WHERE](../../sql-reference/statements/select/where.md) clause.
|
||||
`EXISTS` can also be used in a [WHERE](../../sql-reference/statements/select/where.md) clause.
|
||||
|
||||
:::tip
|
||||
References to main query tables and columns are not supported in a subquery.
|
||||
@ -13,12 +13,26 @@ References to main query tables and columns are not supported in a subquery.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
WHERE EXISTS(subquery)
|
||||
``` sql
|
||||
EXISTS(subquery)
|
||||
```
|
||||
|
||||
**Example**
|
||||
|
||||
Query checking existence of values in a subquery:
|
||||
|
||||
``` sql
|
||||
SELECT EXISTS(SELECT * FROM numbers(10) WHERE number > 8), EXISTS(SELECT * FROM numbers(10) WHERE number > 11)
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─in(1, _subquery1)─┬─in(1, _subquery2)─┐
|
||||
│ 1 │ 0 │
|
||||
└───────────────────┴───────────────────┘
|
||||
```
|
||||
|
||||
Query with a subquery returning several rows:
|
||||
|
||||
``` sql
|
||||
|
||||
@ -10,7 +10,7 @@ A set of queries that allow changing the table structure.
|
||||
Syntax:
|
||||
|
||||
``` sql
|
||||
ALTER TABLE [db].name [ON CLUSTER cluster] ADD|DROP|RENAME|CLEAR|COMMENT|{MODIFY|ALTER}|MATERIALIZE COLUMN ...
|
||||
ALTER [TEMPORARY] TABLE [db].name [ON CLUSTER cluster] ADD|DROP|RENAME|CLEAR|COMMENT|{MODIFY|ALTER}|MATERIALIZE COLUMN ...
|
||||
```
|
||||
|
||||
In the query, specify a list of one or more comma-separated actions.
|
||||
|
||||
@ -16,6 +16,7 @@ Most `ALTER TABLE` queries modify table settings or data:
|
||||
- [INDEX](/docs/en/sql-reference/statements/alter/skipping-index.md)
|
||||
- [CONSTRAINT](/docs/en/sql-reference/statements/alter/constraint.md)
|
||||
- [TTL](/docs/en/sql-reference/statements/alter/ttl.md)
|
||||
- [STATISTIC](/docs/en/sql-reference/statements/alter/statistic.md)
|
||||
|
||||
:::note
|
||||
Most `ALTER TABLE` queries are supported only for [\*MergeTree](/docs/en/engines/table-engines/mergetree-family/index.md) tables, as well as [Merge](/docs/en/engines/table-engines/special/merge.md) and [Distributed](/docs/en/engines/table-engines/special/distributed.md).
|
||||
|
||||
25
docs/en/sql-reference/statements/alter/statistic.md
Normal file
25
docs/en/sql-reference/statements/alter/statistic.md
Normal file
@ -0,0 +1,25 @@
|
||||
---
|
||||
slug: /en/sql-reference/statements/alter/statistic
|
||||
sidebar_position: 45
|
||||
sidebar_label: STATISTIC
|
||||
---
|
||||
|
||||
# Manipulating Column Statistics
|
||||
|
||||
The following operations are available:
|
||||
|
||||
- `ALTER TABLE [db].table ADD STATISTIC (columns list) TYPE type` - Adds statistic description to tables metadata.
|
||||
|
||||
- `ALTER TABLE [db].table DROP STATISTIC (columns list) TYPE type` - Removes statistic description from tables metadata and deletes statistic files from disk.
|
||||
|
||||
- `ALTER TABLE [db].table CLEAR STATISTIC (columns list) TYPE type` - Deletes statistic files from disk.
|
||||
|
||||
- `ALTER TABLE [db.]table MATERIALIZE STATISTIC (columns list) TYPE type` - Rebuilds the statistic for columns. Implemented as a [mutation](../../../sql-reference/statements/alter/index.md#mutations).
|
||||
|
||||
The first two commands are lightweight in a sense that they only change metadata or remove files.
|
||||
|
||||
Also, they are replicated, syncing statistics metadata via ZooKeeper.
|
||||
|
||||
:::note
|
||||
Statistic manipulation is supported only for tables with [`*MergeTree`](../../../engines/table-engines/mergetree-family/mergetree.md) engine (including [replicated](../../../engines/table-engines/mergetree-family/replication.md) variants).
|
||||
:::
|
||||
@ -415,7 +415,7 @@ ExpressionTransform
|
||||
ExpressionTransform × 2
|
||||
(SettingQuotaAndLimits)
|
||||
(ReadFromStorage)
|
||||
NumbersMt × 2 0 → 1
|
||||
NumbersRange × 2 0 → 1
|
||||
```
|
||||
### EXPLAIN ESTIMATE
|
||||
|
||||
|
||||
@ -150,7 +150,7 @@ SYSTEM RELOAD CONFIG [ON CLUSTER cluster_name]
|
||||
|
||||
## RELOAD USERS
|
||||
|
||||
Reloads all access storages, including: users.xml, local disk access storage, replicated (in ZooKeeper) access storage.
|
||||
Reloads all access storages, including: users.xml, local disk access storage, replicated (in ZooKeeper) access storage.
|
||||
|
||||
```sql
|
||||
SYSTEM RELOAD USERS [ON CLUSTER cluster_name]
|
||||
@ -354,7 +354,7 @@ After running this statement the `[db.]replicated_merge_tree_family_table_name`
|
||||
|
||||
### SYNC DATABASE REPLICA
|
||||
|
||||
Waits until the specified [replicated database](https://clickhouse.com/docs/en/engines/database-engines/replicated) applies all schema changes from the DDL queue of that database.
|
||||
Waits until the specified [replicated database](https://clickhouse.com/docs/en/engines/database-engines/replicated) applies all schema changes from the DDL queue of that database.
|
||||
|
||||
**Syntax**
|
||||
```sql
|
||||
@ -451,12 +451,12 @@ SYSTEM SYNC FILE CACHE [ON CLUSTER cluster_name]
|
||||
|
||||
### SYSTEM STOP LISTEN
|
||||
|
||||
Closes the socket and gracefully terminates the existing connections to the server on the specified port with the specified protocol.
|
||||
Closes the socket and gracefully terminates the existing connections to the server on the specified port with the specified protocol.
|
||||
|
||||
However, if the corresponding protocol settings were not specified in the clickhouse-server configuration, this command will have no effect.
|
||||
|
||||
```sql
|
||||
SYSTEM STOP LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP_WITH_PROXY | TCP_SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
|
||||
SYSTEM STOP LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP WITH PROXY | TCP SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
|
||||
```
|
||||
|
||||
- If `CUSTOM 'protocol'` modifier is specified, the custom protocol with the specified name defined in the protocols section of the server configuration will be stopped.
|
||||
@ -471,5 +471,5 @@ Allows new connections to be established on the specified protocols.
|
||||
However, if the server on the specified port and protocol was not stopped using the SYSTEM STOP LISTEN command, this command will have no effect.
|
||||
|
||||
```sql
|
||||
SYSTEM START LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP_WITH_PROXY | TCP_SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
|
||||
SYSTEM START LISTEN [ON CLUSTER cluster_name] [QUERIES ALL | QUERIES DEFAULT | QUERIES CUSTOM | TCP | TCP WITH PROXY | TCP SECURE | HTTP | HTTPS | MYSQL | GRPC | POSTGRESQL | PROMETHEUS | CUSTOM 'protocol']
|
||||
```
|
||||
|
||||
@ -67,6 +67,12 @@ SELECT count(*) FROM azureBlobStorage('DefaultEndpointsProtocol=https;AccountNam
|
||||
└─────────┘
|
||||
```
|
||||
|
||||
## Virtual Columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the file size is unknown, the value is `NULL`.
|
||||
|
||||
**See Also**
|
||||
|
||||
- [AzureBlobStorage Table Engine](/docs/en/engines/table-engines/integrations/azureBlobStorage.md)
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
--
|
||||
---
|
||||
slug: /en/sql-reference/table-functions/file
|
||||
sidebar_position: 60
|
||||
sidebar_label: file
|
||||
@ -191,12 +191,13 @@ Query the total number of rows from all files `file002` inside any folder in dir
|
||||
SELECT count(*) FROM file('big_dir/**/file002', 'CSV', 'name String, value UInt32');
|
||||
```
|
||||
|
||||
## Virtual Columns
|
||||
## Virtual Columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the file.
|
||||
- `_file` — Name of the file.
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the file size is unknown, the value is `NULL`.
|
||||
|
||||
## Settings
|
||||
## Settings {#settings}
|
||||
|
||||
- [engine_file_empty_if_not_exists](/docs/en/operations/settings/settings.md#engine-file-emptyif-not-exists) - allows to select empty data from a file that doesn't exist. Disabled by default.
|
||||
- [engine_file_truncate_on_insert](/docs/en/operations/settings/settings.md#engine-file-truncate-on-insert) - allows to truncate file before insert into it. Disabled by default.
|
||||
|
||||
85
docs/en/sql-reference/table-functions/fileCluster.md
Normal file
85
docs/en/sql-reference/table-functions/fileCluster.md
Normal file
@ -0,0 +1,85 @@
|
||||
---
|
||||
slug: /en/sql-reference/table-functions/fileCluster
|
||||
sidebar_position: 61
|
||||
sidebar_label: fileCluster
|
||||
---
|
||||
|
||||
# fileCluster Table Function
|
||||
|
||||
Enables simultaneous processing of files matching a specified path across multiple nodes within a cluster. The initiator establishes connections to worker nodes, expands globs in the file path, and delegates file-reading tasks to worker nodes. Each worker node is querying the initiator for the next file to process, repeating until all tasks are completed (all files are read).
|
||||
|
||||
:::note
|
||||
This function will operate _correctly_ only in case the set of files matching the initially specified path is identical across all nodes, and their content is consistent among different nodes.
|
||||
In case these files differ between nodes, the return value cannot be predetermined and depends on the order in which worker nodes request tasks from the initiator.
|
||||
:::
|
||||
|
||||
**Syntax**
|
||||
|
||||
``` sql
|
||||
fileCluster(cluster_name, path[, format, structure, compression_method])
|
||||
```
|
||||
|
||||
**Arguments**
|
||||
|
||||
- `cluster_name` — Name of a cluster that is used to build a set of addresses and connection parameters to remote and local servers.
|
||||
- `path` — The relative path to the file from [user_files_path](/docs/en/operations/server-configuration-parameters/settings.md#server_configuration_parameters-user_files_path). Path to file also supports [globs](#globs_in_path).
|
||||
- `format` — [Format](../../interfaces/formats.md#formats) of the files. Type: [String](../../sql-reference/data-types/string.md).
|
||||
- `structure` — Table structure in `'UserID UInt64, Name String'` format. Determines column names and types. Type: [String](../../sql-reference/data-types/string.md).
|
||||
- `compression_method` — Compression method. Supported compression types are `gz`, `br`, `xz`, `zst`, `lz4`, and `bz2`.
|
||||
|
||||
**Returned value**
|
||||
|
||||
A table with the specified format and structure and with data from files matching the specified path.
|
||||
|
||||
**Example**
|
||||
|
||||
Given a cluster named `my_cluster` and given the following value of setting `user_files_path`:
|
||||
|
||||
``` bash
|
||||
$ grep user_files_path /etc/clickhouse-server/config.xml
|
||||
<user_files_path>/var/lib/clickhouse/user_files/</user_files_path>
|
||||
```
|
||||
Also, given there are files `test1.csv` and `test2.csv` inside `user_files_path` of each cluster node, and their content is identical across different nodes:
|
||||
```bash
|
||||
$ cat /var/lib/clickhouse/user_files/test1.csv
|
||||
1,"file1"
|
||||
11,"file11"
|
||||
|
||||
$ cat /var/lib/clickhouse/user_files/test2.csv
|
||||
2,"file2"
|
||||
22,"file22"
|
||||
```
|
||||
|
||||
For example, one can create these files by executing these two queries on every cluster node:
|
||||
```sql
|
||||
INSERT INTO TABLE FUNCTION file('file1.csv', 'CSV', 'i UInt32, s String') VALUES (1,'file1'), (11,'file11');
|
||||
INSERT INTO TABLE FUNCTION file('file2.csv', 'CSV', 'i UInt32, s String') VALUES (2,'file2'), (22,'file22');
|
||||
```
|
||||
|
||||
Now, read data contents of `test1.csv` and `test2.csv` via `fileCluster` table function:
|
||||
|
||||
```sql
|
||||
SELECT * from fileCluster(
|
||||
'my_cluster', 'file{1,2}.csv', 'CSV', 'i UInt32, s String') ORDER BY (i, s)"""
|
||||
)
|
||||
```
|
||||
|
||||
```
|
||||
┌──i─┬─s──────┐
|
||||
│ 1 │ file1 │
|
||||
│ 11 │ file11 │
|
||||
└────┴────────┘
|
||||
┌──i─┬─s──────┐
|
||||
│ 2 │ file2 │
|
||||
│ 22 │ file22 │
|
||||
└────┴────────┘
|
||||
```
|
||||
|
||||
|
||||
## Globs in Path {#globs_in_path}
|
||||
|
||||
All patterns supported by [File](../../sql-reference/table-functions/file.md#globs-in-path) table function are supported by FileCluster.
|
||||
|
||||
**See Also**
|
||||
|
||||
- [File table function](../../sql-reference/table-functions/file.md)
|
||||
86
docs/en/sql-reference/table-functions/fuzzJSON.md
Normal file
86
docs/en/sql-reference/table-functions/fuzzJSON.md
Normal file
@ -0,0 +1,86 @@
|
||||
---
|
||||
slug: /en/sql-reference/table-functions/fuzzJSON
|
||||
sidebar_position: 75
|
||||
sidebar_label: fuzzJSON
|
||||
---
|
||||
|
||||
# fuzzJSON
|
||||
|
||||
Perturbs a JSON string with random variations.
|
||||
|
||||
``` sql
|
||||
fuzzJSON({ named_collection [option=value [,..]] | json_str[, random_seed] })
|
||||
```
|
||||
|
||||
**Arguments**
|
||||
|
||||
- `named_collection`- A [NAMED COLLECTION](/docs/en/sql-reference/statements/create/named-collection.md).
|
||||
- `option=value` - Named collection optional parameters and their values.
|
||||
- `json_str` (String) - The source string representing structured data in JSON format.
|
||||
- `random_seed` (UInt64) - Manual random seed for producing stable results.
|
||||
- `reuse_output` (boolean) - Reuse the output from a fuzzing process as input for the next fuzzer.
|
||||
- `max_output_length` (UInt64) - Maximum allowable length of the generated or perturbed JSON string.
|
||||
- `probability` (Float64) - The probability to fuzz a JSON field (a key-value pair). Must be within [0, 1] range.
|
||||
- `max_nesting_level` (UInt64) - The maximum allowed depth of nested structures within the JSON data.
|
||||
- `max_array_size` (UInt64) - The maximum allowed size of a JSON array.
|
||||
- `max_object_size` (UInt64) - The maximum allowed number of fields on a single level of a JSON object.
|
||||
- `max_string_value_length` (UInt64) - The maximum length of a String value.
|
||||
- `min_key_length` (UInt64) - The minimum key length. Should be at least 1.
|
||||
- `max_key_length` (UInt64) - The maximum key length. Should be greater or equal than the `min_key_length`, if specified.
|
||||
|
||||
**Returned Value**
|
||||
|
||||
A table object with a a single column containing perturbed JSON strings.
|
||||
|
||||
## Usage Example
|
||||
|
||||
``` sql
|
||||
CREATE NAMED COLLECTION json_fuzzer AS json_str='{}';
|
||||
SELECT * FROM fuzzJSON(json_fuzzer) LIMIT 3;
|
||||
```
|
||||
|
||||
``` text
|
||||
{"52Xz2Zd4vKNcuP2":true}
|
||||
{"UPbOhOQAdPKIg91":3405264103600403024}
|
||||
{"X0QUWu8yT":[]}
|
||||
```
|
||||
|
||||
``` sql
|
||||
SELECT * FROM fuzzJSON(json_fuzzer, json_str='{"name" : "value"}', random_seed=1234) LIMIT 3;
|
||||
```
|
||||
|
||||
``` text
|
||||
{"key":"value", "mxPG0h1R5":"L-YQLv@9hcZbOIGrAn10%GA"}
|
||||
{"BRE3":true}
|
||||
{"key":"value", "SWzJdEJZ04nrpSfy":[{"3Q23y":[]}]}
|
||||
```
|
||||
|
||||
``` sql
|
||||
SELECT * FROM fuzzJSON(json_fuzzer, json_str='{"students" : ["Alice", "Bob"]}', reuse_output=true) LIMIT 3;
|
||||
```
|
||||
|
||||
``` text
|
||||
{"students":["Alice", "Bob"], "nwALnRMc4pyKD9Krv":[]}
|
||||
{"students":["1rNY5ZNs0wU&82t_P", "Bob"], "wLNRGzwDiMKdw":[{}]}
|
||||
{"xeEk":["1rNY5ZNs0wU&82t_P", "Bob"], "wLNRGzwDiMKdw":[{}, {}]}
|
||||
```
|
||||
|
||||
``` sql
|
||||
SELECT * FROM fuzzJSON(json_fuzzer, json_str='{"students" : ["Alice", "Bob"]}', max_output_length=512) LIMIT 3;
|
||||
```
|
||||
|
||||
``` text
|
||||
{"students":["Alice", "Bob"], "BREhhXj5":true}
|
||||
{"NyEsSWzJdeJZ04s":["Alice", 5737924650575683711, 5346334167565345826], "BjVO2X9L":true}
|
||||
{"NyEsSWzJdeJZ04s":["Alice", 5737924650575683711, 5346334167565345826], "BjVO2X9L":true, "k1SXzbSIz":[{}]}
|
||||
```
|
||||
|
||||
``` sql
|
||||
SELECT * FROM fuzzJSON('{"id":1}', 1234) LIMIT 3;
|
||||
```
|
||||
|
||||
``` text
|
||||
{"id":1, "mxPG0h1R5":"L-YQLv@9hcZbOIGrAn10%GA"}
|
||||
{"BRjE":16137826149911306846}
|
||||
{"XjKE":15076727133550123563}
|
||||
```
|
||||
@ -94,8 +94,9 @@ FROM hdfs('hdfs://hdfs1:9000/big_dir/file{0..9}{0..9}{0..9}', 'CSV', 'name Strin
|
||||
|
||||
## Virtual Columns
|
||||
|
||||
- `_path` — Path to the file.
|
||||
- `_file` — Name of the file.
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
|
||||
|
||||
## Storage Settings {#storage-settings}
|
||||
|
||||
|
||||
@ -17,6 +17,8 @@ The following queries are equivalent:
|
||||
SELECT * FROM numbers(10);
|
||||
SELECT * FROM numbers(0, 10);
|
||||
SELECT * FROM system.numbers LIMIT 10;
|
||||
SELECT * FROM system.numbers WHERE number BETWEEN 0 AND 9;
|
||||
SELECT * FROM system.numbers WHERE number IN (0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
|
||||
```
|
||||
|
||||
Examples:
|
||||
|
||||
@ -228,6 +228,12 @@ FROM s3(
|
||||
LIMIT 5;
|
||||
```
|
||||
|
||||
## Virtual Columns {#virtual-columns}
|
||||
|
||||
- `_path` — Path to the file. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Name of the file. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the file in bytes. Type: `Nullable(UInt64)`. If the file size is unknown, the value is `NULL`.
|
||||
|
||||
## Storage Settings {#storage-settings}
|
||||
|
||||
- [s3_truncate_on_insert](/docs/en/operations/settings/settings.md#s3-truncate-on-insert) - allows to truncate file before insert into it. Disabled by default.
|
||||
|
||||
@ -50,8 +50,9 @@ Character `|` inside patterns is used to specify failover addresses. They are it
|
||||
|
||||
## Virtual Columns
|
||||
|
||||
- `_path` — Path to the `URL`.
|
||||
- `_file` — Resource name of the `URL`.
|
||||
- `_path` — Path to the `URL`. Type: `LowCardinalty(String)`.
|
||||
- `_file` — Resource name of the `URL`. Type: `LowCardinalty(String)`.
|
||||
- `_size` — Size of the resource in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
|
||||
|
||||
## Storage Settings {#storage-settings}
|
||||
|
||||
|
||||
@ -337,7 +337,7 @@ SELECT count() FROM table WHERE u64 * i32 == 10 AND u64 * length(s) >= 1234
|
||||
|
||||
Поддерживаемые типы данных: `Int*`, `UInt*`, `Float*`, `Enum`, `Date`, `DateTime`, `String`, `FixedString`.
|
||||
|
||||
Фильтром могут пользоваться функции: [equals](../../../sql-reference/functions/comparison-functions.md), [notEquals](../../../sql-reference/functions/comparison-functions.md), [in](../../../sql-reference/functions/in-functions.md), [notIn](../../../sql-reference/functions/in-functions.md), [has](../../../sql-reference/functions/array-functions.md#hasarr-elem), [hasAny](../../../sql-reference/functions/array-functions.md#hasany), [hasAll](../../../sql-reference/functions/array-functions.md#hasall).
|
||||
Фильтром могут пользоваться функции: [equals](../../../sql-reference/functions/comparison-functions.md#equals), [notEquals](../../../sql-reference/functions/comparison-functions.md#notequals), [in](../../../sql-reference/functions/in-functions.md), [notIn](../../../sql-reference/functions/in-functions.md), [has](../../../sql-reference/functions/array-functions.md#hasarr-elem), [hasAny](../../../sql-reference/functions/array-functions.md#hasany), [hasAll](../../../sql-reference/functions/array-functions.md#hasall).
|
||||
|
||||
**Примеры**
|
||||
|
||||
@ -354,8 +354,8 @@ INDEX b (u64 * length(str), i32 + f64 * 100, date, str) TYPE set(100) GRANULARIT
|
||||
|
||||
| Функция (оператор) / Индекс | primary key | minmax | ngrambf_v1 | tokenbf_v1 | bloom_filter |
|
||||
|------------------------------------------------------------------------------------------------------------|-------------|--------|-------------|-------------|---------------|
|
||||
| [equals (=, ==)](../../../sql-reference/functions/comparison-functions.md#function-equals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notEquals(!=, <>)](../../../sql-reference/functions/comparison-functions.md#function-notequals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [equals (=, ==)](../../../sql-reference/functions/comparison-functions.md#equals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notEquals(!=, <>)](../../../sql-reference/functions/comparison-functions.md#notequals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [like](../../../sql-reference/functions/string-search-functions.md#function-like) | ✔ | ✔ | ✔ | ✔ | ✗ |
|
||||
| [notLike](../../../sql-reference/functions/string-search-functions.md#function-notlike) | ✔ | ✔ | ✔ | ✔ | ✗ |
|
||||
| [startsWith](../../../sql-reference/functions/string-functions.md#startswith) | ✔ | ✔ | ✔ | ✔ | ✗ |
|
||||
@ -363,10 +363,10 @@ INDEX b (u64 * length(str), i32 + f64 * 100, date, str) TYPE set(100) GRANULARIT
|
||||
| [multiSearchAny](../../../sql-reference/functions/string-search-functions.md#function-multisearchany) | ✗ | ✗ | ✔ | ✗ | ✗ |
|
||||
| [in](../../../sql-reference/functions/in-functions.md#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notIn](../../../sql-reference/functions/in-functions.md#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [less (\<)](../../../sql-reference/functions/comparison-functions.md#function-less) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greater (\>)](../../../sql-reference/functions/comparison-functions.md#function-greater) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [lessOrEquals (\<=)](../../../sql-reference/functions/comparison-functions.md#function-lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greaterOrEquals (\>=)](../../../sql-reference/functions/comparison-functions.md#function-greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [less (\<)](../../../sql-reference/functions/comparison-functions.md#less) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greater (\>)](../../../sql-reference/functions/comparison-functions.md#greater) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [lessOrEquals (\<=)](../../../sql-reference/functions/comparison-functions.md#lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greaterOrEquals (\>=)](../../../sql-reference/functions/comparison-functions.md#greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [empty](../../../sql-reference/functions/array-functions.md#function-empty) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [notEmpty](../../../sql-reference/functions/array-functions.md#function-notempty) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| hasToken | ✗ | ✗ | ✗ | ✔ | ✗ |
|
||||
@ -681,7 +681,6 @@ TTL d + INTERVAL 1 MONTH GROUP BY k1, k2 SET x = max(x), y = min(y);
|
||||
- `disk` — диск, находящийся внутри тома.
|
||||
- `max_data_part_size_bytes` — максимальный размер куска данных, который может находиться на любом из дисков этого тома. Если в результате слияния размер куска ожидается больше, чем max_data_part_size_bytes, то этот кусок будет записан в следующий том. В основном эта функция позволяет хранить новые / мелкие куски на горячем (SSD) томе и перемещать их на холодный (HDD) том, когда они достигают большого размера. Не используйте этот параметр, если политика имеет только один том.
|
||||
- `move_factor` — доля доступного свободного места на томе, если места становится меньше, то данные начнут перемещение на следующий том, если он есть (по умолчанию 0.1). Для перемещения куски сортируются по размеру от большего к меньшему (по убыванию) и выбираются куски, совокупный размер которых достаточен для соблюдения условия `move_factor`, если совокупный размер всех партов недостаточен, будут перемещены все парты.
|
||||
- `prefer_not_to_merge` — Отключает слияние кусков данных, хранящихся на данном томе. Если данная настройка включена, то слияние данных, хранящихся на данном томе, не допускается. Это позволяет контролировать работу ClickHouse с медленными дисками.
|
||||
|
||||
Примеры конфигураций:
|
||||
|
||||
@ -718,7 +717,6 @@ TTL d + INTERVAL 1 MONTH GROUP BY k1, k2 SET x = max(x), y = min(y);
|
||||
</main>
|
||||
<external>
|
||||
<disk>external</disk>
|
||||
<prefer_not_to_merge>true</prefer_not_to_merge>
|
||||
</external>
|
||||
</volumes>
|
||||
</small_jbod_with_external_no_merges>
|
||||
|
||||
@ -14,7 +14,7 @@ ClickHouse предоставляет собственный клиент ком
|
||||
$ clickhouse-client
|
||||
ClickHouse client version 20.13.1.5273 (official build).
|
||||
Connecting to localhost:9000 as user default.
|
||||
Connected to ClickHouse server version 20.13.1 revision 54442.
|
||||
Connected to ClickHouse server version 20.13.1.
|
||||
|
||||
:)
|
||||
```
|
||||
|
||||
@ -1215,6 +1215,7 @@ ClickHouse использует потоки из глобального пул
|
||||
- `metrics` – флаг для экспорта текущих значений метрик из таблицы [system.metrics](../system-tables/metrics.md#system_tables-metrics).
|
||||
- `events` – флаг для экспорта текущих значений метрик из таблицы [system.events](../system-tables/events.md#system_tables-events).
|
||||
- `asynchronous_metrics` – флаг для экспорта текущих значений значения метрик из таблицы [system.asynchronous_metrics](../system-tables/asynchronous_metrics.md#system_tables-asynchronous_metrics).
|
||||
- `errors` - флаг для экспорта количества ошибок (по кодам) случившихся с момента последнего рестарта сервера. Эта информация может быть получена из таблицы [system.errors](../system-tables/asynchronous_metrics.md#system_tables-errors)
|
||||
|
||||
**Пример**
|
||||
|
||||
@ -1225,6 +1226,7 @@ ClickHouse использует потоки из глобального пул
|
||||
<metrics>true</metrics>
|
||||
<events>true</events>
|
||||
<asynchronous_metrics>true</asynchronous_metrics>
|
||||
<errors>true</errors>
|
||||
</prometheus>
|
||||
```
|
||||
|
||||
@ -1676,7 +1678,7 @@ TCP порт для защищённого обмена данными с кли
|
||||
|
||||
## user_files_path {#server_configuration_parameters-user_files_path}
|
||||
|
||||
Каталог с пользовательскими файлами. Используется в табличной функции [file()](../../operations/server-configuration-parameters/settings.md).
|
||||
Каталог с пользовательскими файлами. Используется в табличных функциях [file()](../../sql-reference/table-functions/fileCluster.md) и [fileCluster()](../../sql-reference/table-functions/fileCluster.md).
|
||||
|
||||
**Пример**
|
||||
|
||||
|
||||
@ -119,7 +119,7 @@ Eсли суммарное число активных кусков во все
|
||||
- Положительное целое число.
|
||||
- 0 (без ограничений).
|
||||
|
||||
Значение по умолчанию: 100.
|
||||
Значение по умолчанию: 1000.
|
||||
|
||||
Команда `Insert` создает один или несколько блоков (кусков). При вставке в Replicated таблицы ClickHouse для [дедупликации вставок](../../engines/table-engines/mergetree-family/replication.md) записывает в Zookeeper хеш-суммы созданных кусков. Но хранятся только последние `replicated_deduplication_window` хеш-сумм. Самые старые хеш-суммы удаляются из Zookeeper.
|
||||
Большое значение `replicated_deduplication_window` замедляет `Insert`, так как приходится сравнивать большее количество хеш-сумм.
|
||||
|
||||
@ -2249,7 +2249,7 @@ SELECT * FROM test_table
|
||||
|
||||
## input_format_parallel_parsing {#input-format-parallel-parsing}
|
||||
|
||||
Включает или отключает режим, при котором входящие данные разбиваются на части, парсинг каждой из которых осуществляется параллельно с сохранением исходного порядка. Поддерживается только для форматов [TSV](../../interfaces/formats.md#tabseparated), [TKSV](../../interfaces/formats.md#tskv), [CSV](../../interfaces/formats.md#csv) и [JSONEachRow](../../interfaces/formats.md#jsoneachrow).
|
||||
Включает или отключает режим, при котором входящие данные разбиваются на части, парсинг каждой из которых осуществляется параллельно с сохранением исходного порядка. Поддерживается только для форматов [TSV](../../interfaces/formats.md#tabseparated), [TSKV](../../interfaces/formats.md#tskv), [CSV](../../interfaces/formats.md#csv) и [JSONEachRow](../../interfaces/formats.md#jsoneachrow).
|
||||
|
||||
Возможные значения:
|
||||
|
||||
@ -2260,7 +2260,7 @@ SELECT * FROM test_table
|
||||
|
||||
## output_format_parallel_formatting {#output-format-parallel-formatting}
|
||||
|
||||
Включает или отключает режим, при котором исходящие данные форматируются параллельно с сохранением исходного порядка. Поддерживается только для форматов [TSV](../../interfaces/formats.md#tabseparated), [TKSV](../../interfaces/formats.md#tskv), [CSV](../../interfaces/formats.md#csv) и [JSONEachRow](../../interfaces/formats.md#jsoneachrow).
|
||||
Включает или отключает режим, при котором исходящие данные форматируются параллельно с сохранением исходного порядка. Поддерживается только для форматов [TSV](../../interfaces/formats.md#tabseparated), [TSKV](../../interfaces/formats.md#tskv), [CSV](../../interfaces/formats.md#csv) и [JSONEachRow](../../interfaces/formats.md#jsoneachrow).
|
||||
|
||||
Возможные значения:
|
||||
|
||||
|
||||
@ -13,6 +13,5 @@ slug: /ru/operations/system-tables/storage_policies
|
||||
- `disks` ([Array(String)](../../sql-reference/data-types/array.md)) — имена дисков, содержащихся в политике хранения.
|
||||
- `max_data_part_size` ([UInt64](../../sql-reference/data-types/int-uint.md)) — максимальный размер куска данных, который может храниться на дисках тома (0 — без ограничений).
|
||||
- `move_factor` — доля доступного свободного места на томе, если места становится меньше, то данные начнут перемещение на следующий том, если он есть (по умолчанию 0.1).
|
||||
- `prefer_not_to_merge` ([UInt8](../../sql-reference/data-types/int-uint.md)) — Значение настройки `prefer_not_to_merge`. Если данная настройка включена, то слияние данных, хранящихся на данном томе, не допускается. Это позволяет контролировать работу ClickHouse с медленными дисками.
|
||||
|
||||
Если политика хранения содержит несколько томов, то каждому тому соответствует отдельная запись в таблице.
|
||||
|
||||
@ -19,7 +19,7 @@ ClickHouse создает эту таблицу когда установлен
|
||||
|
||||
- `revision`([UInt32](../../sql-reference/data-types/int-uint.md)) — ревизия сборки сервера ClickHouse.
|
||||
|
||||
Во время соединения с сервером через `clickhouse-client`, вы видите строку похожую на `Connected to ClickHouse server version 19.18.1 revision 54429.`. Это поле содержит номер после `revision`, но не содержит строку после `version`.
|
||||
Во время соединения с сервером через `clickhouse-client`, вы видите строку похожую на `Connected to ClickHouse server version 19.18.1.`. Это поле содержит номер после `revision`, но не содержит строку после `version`.
|
||||
|
||||
- `trace_type`([Enum8](../../sql-reference/data-types/enum.md)) — тип трассировки:
|
||||
|
||||
|
||||
@ -23,14 +23,14 @@ sidebar_label: "Функции сравнения"
|
||||
|
||||
Замечание. До версии 1.1.54134 сравнение знаковых и беззнаковых целых чисел производилось также, как в C++. То есть, вы могли получить неверный результат в таких случаях: SELECT 9223372036854775807 \> -1. С версии 1.1.54134 поведение изменилось и стало математически корректным.
|
||||
|
||||
## equals, оператор a = b и a == b {#function-equals}
|
||||
## equals, оператор a = b и a == b {#equals}
|
||||
|
||||
## notEquals, оператор a != b и a `<>` b {#function-notequals}
|
||||
## notEquals, оператор a != b и a `<>` b {#notequals}
|
||||
|
||||
## less, оператор `<` {#function-less}
|
||||
## less, оператор `<` {#less}
|
||||
|
||||
## greater, оператор `>` {#function-greater}
|
||||
## greater, оператор `>` {#greater}
|
||||
|
||||
## lessOrEquals, оператор `<=` {#function-lessorequals}
|
||||
## lessOrEquals, оператор `<=` {#lessorequals}
|
||||
|
||||
## greaterOrEquals, оператор `>=` {#function-greaterorequals}
|
||||
## greaterOrEquals, оператор `>=` {#greaterorequals}
|
||||
|
||||
@ -11,7 +11,7 @@ sidebar_label: "Манипуляции со столбцами"
|
||||
Синтаксис:
|
||||
|
||||
``` sql
|
||||
ALTER TABLE [db].name [ON CLUSTER cluster] ADD|DROP|RENAME|CLEAR|COMMENT|{MODIFY|ALTER}|MATERIALIZE COLUMN ...
|
||||
ALTER [TEMPORARY] TABLE [db].name [ON CLUSTER cluster] ADD|DROP|RENAME|CLEAR|COMMENT|{MODIFY|ALTER}|MATERIALIZE COLUMN ...
|
||||
```
|
||||
|
||||
В запросе можно указать сразу несколько действий над одной таблицей через запятую.
|
||||
|
||||
@ -371,7 +371,7 @@ ExpressionTransform
|
||||
ExpressionTransform × 2
|
||||
(SettingQuotaAndLimits)
|
||||
(ReadFromStorage)
|
||||
NumbersMt × 2 0 → 1
|
||||
NumbersRange × 2 0 → 1
|
||||
```
|
||||
|
||||
### EXPLAIN ESTIMATE {#explain-estimate}
|
||||
|
||||
@ -13,7 +13,7 @@ sidebar_label: file
|
||||
**Синтаксис**
|
||||
|
||||
``` sql
|
||||
file(path [,format] [,structure])
|
||||
file(path [,format] [,structure] [,compression])
|
||||
```
|
||||
|
||||
**Параметры**
|
||||
@ -21,6 +21,7 @@ file(path [,format] [,structure])
|
||||
- `path` — относительный путь до файла от [user_files_path](../../sql-reference/table-functions/file.md#server_configuration_parameters-user_files_path). Путь к файлу поддерживает следующие шаблоны в режиме доступа только для чтения `*`, `?`, `{abc,def}` и `{N..M}`, где `N`, `M` — числа, `'abc', 'def'` — строки.
|
||||
- `format` — [формат](../../interfaces/formats.md#formats) файла.
|
||||
- `structure` — структура таблицы. Формат: `'colunmn1_name column1_ype, column2_name column2_type, ...'`.
|
||||
- `compression` — Используемый тип сжатия для запроса SELECT или желаемый тип сжатия для запроса INSERT. Поддерживаемые типы сжатия: `gz`, `br`, `xz`, `zst`, `lz4` и `bz2`.
|
||||
|
||||
**Возвращаемое значение**
|
||||
|
||||
|
||||
84
docs/ru/sql-reference/table-functions/fileCluster.md
Normal file
84
docs/ru/sql-reference/table-functions/fileCluster.md
Normal file
@ -0,0 +1,84 @@
|
||||
---
|
||||
slug: /ru/sql-reference/table-functions/fileCluster
|
||||
sidebar_position: 38
|
||||
sidebar_label: fileCluster
|
||||
---
|
||||
|
||||
# fileCluster
|
||||
|
||||
Позволяет одновременно обрабатывать файлы, находящиеся по указанному пути, на нескольких узлах внутри кластера. Узел-инициатор устанавливает соединения с рабочими узлами (worker nodes), раскрывает шаблоны в пути к файлам и отдаёт задачи по чтению файлов рабочим узлам. Рабочий узел запрашивает у инициатора путь к следующему файлу для обработки, повторяя до тех пор, пока не завершатся все задачи (то есть пока не будут обработаны все файлы).
|
||||
|
||||
:::note
|
||||
Эта табличная функция будет работать _корректно_ только в случае, если набор файлов, соответствующих изначально указанному пути, одинаков на всех узлах и содержание этих файлов идентично на различных узлах. В случае, если эти файлы различаются между узлами, результат не предопределён и зависит от очерёдности, с которой рабочие узлы будут запрашивать задачи у инициатора.
|
||||
:::
|
||||
|
||||
**Синтаксис**
|
||||
|
||||
``` sql
|
||||
fileCluster(cluster_name, path[, format, structure, compression_method])
|
||||
```
|
||||
|
||||
**Аргументы**
|
||||
|
||||
- `cluster_name` — имя кластера, используемое для создания набора адресов и параметров подключения к удаленным и локальным серверам.
|
||||
- `path` — относительный путь до файла от [user_files_path](../../sql-reference/table-functions/file.md#server_configuration_parameters-user_files_path). Путь к файлу поддерживает [шаблоны поискаglobs](#globs_in_path).
|
||||
- `format` — [формат](../../interfaces/formats.md#formats) файла.
|
||||
- `structure` — структура таблицы. Формат: `'colunmn1_name column1_ype, column2_name column2_type, ...'`.
|
||||
- `compression_method` — Используемый тип сжатия. Поддерживаемые типы: `gz`, `br`, `xz`, `zst`, `lz4` и `bz2`.
|
||||
|
||||
**Возвращаемое значение**
|
||||
|
||||
Таблица с указанным форматом и структурой, содержащая данные из файлов, соответствующих указанному пути.
|
||||
|
||||
**Пример**
|
||||
Пусть есть кластер с именем `my_cluster`, а также установлено нижеследующее значение параметра `user_files_path`:
|
||||
|
||||
``` bash
|
||||
$ grep user_files_path /etc/clickhouse-server/config.xml
|
||||
<user_files_path>/var/lib/clickhouse/user_files/</user_files_path>
|
||||
```
|
||||
|
||||
Пусть также на каждом узле кластера в директории `user_files_path` находятся файлы `test1.csv` и `test2.csv`, и их содержимое идентично на разных узлах:
|
||||
```bash
|
||||
$ cat /var/lib/clickhouse/user_files/test1.csv
|
||||
1,"file1"
|
||||
11,"file11"
|
||||
|
||||
$ cat /var/lib/clickhouse/user_files/test2.csv
|
||||
2,"file2"
|
||||
22,"file22"
|
||||
```
|
||||
|
||||
Например, эти файлы можно создать, выполнив на каждом узле два запроса:
|
||||
```sql
|
||||
INSERT INTO TABLE FUNCTION file('file1.csv', 'CSV', 'i UInt32, s String') VALUES (1,'file1'), (11,'file11');
|
||||
INSERT INTO TABLE FUNCTION file('file2.csv', 'CSV', 'i UInt32, s String') VALUES (2,'file2'), (22,'file22');
|
||||
```
|
||||
|
||||
Прочитаем содержимое файлов `test1.csv` и `test2.csv` с помощью табличной функции `fileCluster`:
|
||||
|
||||
```sql
|
||||
SELECT * from fileCluster(
|
||||
'my_cluster', 'file{1,2}.csv', 'CSV', 'i UInt32, s String') ORDER BY (i, s)"""
|
||||
)
|
||||
```
|
||||
|
||||
```
|
||||
┌──i─┬─s──────┐
|
||||
│ 1 │ file1 │
|
||||
│ 11 │ file11 │
|
||||
└────┴────────┘
|
||||
┌──i─┬─s──────┐
|
||||
│ 2 │ file2 │
|
||||
│ 22 │ file22 │
|
||||
└────┴────────┘
|
||||
```
|
||||
|
||||
|
||||
## Шаблоны поиска в компонентах пути {#globs_in_path}
|
||||
|
||||
Поддерживаются все шаблоны поиска, что поддерживаются табличной функцией [File](../../sql-reference/table-functions/file.md#globs-in-path).
|
||||
|
||||
**Смотрите также**
|
||||
|
||||
- [File (табличная функция)](../../sql-reference/table-functions/file.md)
|
||||
@ -349,8 +349,8 @@ WHERE 子句中的条件可以包含对某列数据进行运算的函数表达
|
||||
|
||||
| 函数 (操作符) / 索引 | primary key | minmax | ngrambf_v1 | tokenbf_v1 | bloom_filter |
|
||||
| ------------------------------------------------------------ | ----------- | ------ | ---------- | ---------- | ------------ |
|
||||
| [equals (=, ==)](../../../sql-reference/functions/comparison-functions.md#function-equals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notEquals(!=, <>)](../../../sql-reference/functions/comparison-functions.md#function-notequals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [equals (=, ==)](../../../sql-reference/functions/comparison-functions.md#equals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notEquals(!=, <>)](../../../sql-reference/functions/comparison-functions.md#notequals) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [like](../../../sql-reference/functions/string-search-functions.md#function-like) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notLike](../../../sql-reference/functions/string-search-functions.md#function-notlike) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [startsWith](../../../sql-reference/functions/string-functions.md#startswith) | ✔ | ✔ | ✔ | ✔ | ✗ |
|
||||
@ -358,10 +358,10 @@ WHERE 子句中的条件可以包含对某列数据进行运算的函数表达
|
||||
| [multiSearchAny](../../../sql-reference/functions/string-search-functions.md#function-multisearchany) | ✗ | ✗ | ✔ | ✗ | ✗ |
|
||||
| [in](../../../sql-reference/functions/in-functions.md#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [notIn](../../../sql-reference/functions/in-functions.md#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
|
||||
| [less (\<)](../../../sql-reference/functions/comparison-functions.md#function-less) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greater (\>)](../../../sql-reference/functions/comparison-functions.md#function-greater) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [lessOrEquals (\<=)](../../../sql-reference/functions/comparison-functions.md#function-lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greaterOrEquals (\>=)](../../../sql-reference/functions/comparison-functions.md#function-greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [less (\<)](../../../sql-reference/functions/comparison-functions.md#less) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greater (\>)](../../../sql-reference/functions/comparison-functions.md#greater) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [lessOrEquals (\<=)](../../../sql-reference/functions/comparison-functions.md#lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [greaterOrEquals (\>=)](../../../sql-reference/functions/comparison-functions.md#greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [empty](../../../sql-reference/functions/array-functions.md#function-empty) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| [notEmpty](../../../sql-reference/functions/array-functions.md#function-notempty) | ✔ | ✔ | ✗ | ✗ | ✗ |
|
||||
| hasToken | ✗ | ✗ | ✗ | ✔ | ✗ |
|
||||
@ -623,7 +623,6 @@ MergeTree 系列表引擎可以将数据存储在多个块设备上。这对某
|
||||
- `disk` — 卷中的磁盘。
|
||||
- `max_data_part_size_bytes` — 卷中的磁盘可以存储的数据片段的最大大小。
|
||||
- `move_factor` — 当可用空间少于这个因子时，数据将自动的向下一个卷（如果有的话）移动 (默认值为 0.1)。
|
||||
- `prefer_not_to_merge` - 禁止在这个卷中进行数据合并。该选项启用时，对该卷的数据不能进行合并。这个选项主要用于慢速磁盘。
|
||||
|
||||
配置示例：
|
||||
|
||||
@ -660,7 +659,6 @@ MergeTree 系列表引擎可以将数据存储在多个块设备上。这对某
|
||||
</main>
|
||||
<external>
|
||||
<disk>external</disk>
|
||||
<prefer_not_to_merge>true</prefer_not_to_merge>
|
||||
</external>
|
||||
</volumes>
|
||||
</small_jbod_with_external_no_merges>
|
||||
|
||||
@ -14,7 +14,7 @@ ClickHouse提供了一个原生命令行客户端`clickhouse-client`客户端支
|
||||
$ clickhouse-client
|
||||
ClickHouse client version 19.17.1.1579 (official build).
|
||||
Connecting to localhost:9000 as user default.
|
||||
Connected to ClickHouse server version 19.17.1 revision 54428.
|
||||
Connected to ClickHouse server version 19.17.1.
|
||||
|
||||
:)
|
||||
```
|
||||
|
||||
@ -1203,7 +1203,7 @@ ClickHouse生成异常
|
||||
- 类型：布尔
|
||||
- 默认值：True
|
||||
|
||||
启用数据格式的保序并行分析。 仅支持TSV，TKSV，CSV和JSONEachRow格式。
|
||||
启用数据格式的保序并行分析。 仅支持TSV，TSKV，CSV和JSONEachRow格式。
|
||||
|
||||
## min_chunk_bytes_for_parallel_parsing {#min-chunk-bytes-for-parallel-parsing}
|
||||
|
||||
|
||||
@ -13,6 +13,5 @@ slug: /zh/operations/system-tables/storage_policies
|
||||
- `disks` ([Array(String)](../../sql-reference/data-types/array.md)) — 存储策略中定义的磁盘名。
|
||||
- `max_data_part_size` ([UInt64](../../sql-reference/data-types/int-uint.md)) — 可以存储在卷磁盘上数据部分的最大大小 (0 - 不限制)。
|
||||
- `move_factor` ([Float64](../../sql-reference/data-types/float.md)) — 磁盘空闲的比率。当比率超过配置的值，ClickHouse 将把数据向下一个卷移动。
|
||||
- `prefer_not_to_merge` ([UInt8](../../sql-reference/data-types/int-uint.md)) — 设置中 `prefer_not_to_merge` 的值. 当这个设置启用时，不允许在此卷上合并数据。这将允许控制 ClickHouse 如何与运行速度较慢的磁盘一起工作。
|
||||
|
||||
如果存储策略包含多个卷，则每个卷的信息将在表中作为单独一行存储。
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user