mirror of
https://github.com/ClickHouse/ClickHouse.git
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Merge branch 'master' into deprecate_errorprone_functions
This commit is contained in:
Nikita Taranov
GitHub
commit
801355bd91
2
.github/workflows/debug.yml
vendored
2
.github/workflows/debug.yml
vendored
@ -8,4 +8,4 @@ jobs:
|
||||
DebugInfo:
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- uses: hmarr/debug-action@a701ed95a46e6f2fb0df25e1a558c16356fae35a
|
||||
- uses: hmarr/debug-action@f7318c783045ac39ed9bb497e22ce835fdafbfe6
|
||||
|
||||
39
.github/workflows/master.yml
vendored
39
.github/workflows/master.yml
vendored
@ -16,7 +16,7 @@ jobs:
|
||||
data: ${{ steps.runconfig.outputs.CI_DATA }}
|
||||
steps:
|
||||
- name: DebugInfo
|
||||
uses: hmarr/debug-action@a701ed95a46e6f2fb0df25e1a558c16356fae35a
|
||||
uses: hmarr/debug-action@f7318c783045ac39ed9bb497e22ce835fdafbfe6
|
||||
- name: Check out repository code
|
||||
uses: ClickHouse/checkout@v1
|
||||
with:
|
||||
@ -59,16 +59,17 @@ jobs:
|
||||
uses: ./.github/workflows/reusable_docker.yml
|
||||
with:
|
||||
data: ${{ needs.RunConfig.outputs.data }}
|
||||
StyleCheck:
|
||||
needs: [RunConfig, BuildDockers]
|
||||
if: ${{ !failure() && !cancelled() }}
|
||||
uses: ./.github/workflows/reusable_test.yml
|
||||
with:
|
||||
test_name: Style check
|
||||
runner_type: style-checker
|
||||
data: ${{ needs.RunConfig.outputs.data }}
|
||||
run_command: |
|
||||
python3 style_check.py --no-push
|
||||
# Tested in MQ
|
||||
# StyleCheck:
|
||||
# needs: [RunConfig, BuildDockers]
|
||||
# if: ${{ !failure() && !cancelled() }}
|
||||
# uses: ./.github/workflows/reusable_test.yml
|
||||
# with:
|
||||
# test_name: Style check
|
||||
# runner_type: style-checker
|
||||
# data: ${{ needs.RunConfig.outputs.data }}
|
||||
# run_command: |
|
||||
# python3 style_check.py --no-push
|
||||
CompatibilityCheckX86:
|
||||
needs: [RunConfig, BuilderDebRelease]
|
||||
if: ${{ !failure() && !cancelled() }}
|
||||
@ -447,6 +448,14 @@ jobs:
|
||||
test_name: Stateless tests (debug)
|
||||
runner_type: func-tester
|
||||
data: ${{ needs.RunConfig.outputs.data }}
|
||||
FunctionalStatelessTestAsanAzure:
|
||||
needs: [RunConfig, BuilderDebAsan]
|
||||
if: ${{ !failure() && !cancelled() }}
|
||||
uses: ./.github/workflows/reusable_test.yml
|
||||
with:
|
||||
test_name: Stateless tests (azure, asan)
|
||||
runner_type: func-tester
|
||||
data: ${{ needs.RunConfig.outputs.data }}
|
||||
##############################################################################################
|
||||
############################ FUNCTIONAl STATEFUL TESTS #######################################
|
||||
##############################################################################################
|
||||
@ -597,6 +606,14 @@ jobs:
|
||||
test_name: Stress test (tsan)
|
||||
runner_type: stress-tester
|
||||
data: ${{ needs.RunConfig.outputs.data }}
|
||||
StressTestTsanAzure:
|
||||
needs: [RunConfig, BuilderDebTsan]
|
||||
if: ${{ !failure() && !cancelled() }}
|
||||
uses: ./.github/workflows/reusable_test.yml
|
||||
with:
|
||||
test_name: Stress test (azure, tsan)
|
||||
runner_type: stress-tester
|
||||
data: ${{ needs.RunConfig.outputs.data }}
|
||||
StressTestMsan:
|
||||
needs: [RunConfig, BuilderDebMsan]
|
||||
if: ${{ !failure() && !cancelled() }}
|
||||
|
||||
6
.github/workflows/pull_request.yml
vendored
6
.github/workflows/pull_request.yml
vendored
@ -22,7 +22,7 @@ jobs:
|
||||
data: ${{ steps.runconfig.outputs.CI_DATA }}
|
||||
steps:
|
||||
- name: DebugInfo
|
||||
uses: hmarr/debug-action@a701ed95a46e6f2fb0df25e1a558c16356fae35a
|
||||
uses: hmarr/debug-action@f7318c783045ac39ed9bb497e22ce835fdafbfe6
|
||||
- name: Check out repository code
|
||||
uses: ClickHouse/checkout@v1
|
||||
with:
|
||||
@ -158,7 +158,7 @@ jobs:
|
||||
#
|
||||
FinishCheck:
|
||||
if: ${{ !failure() && !cancelled() }}
|
||||
needs: [Tests_1, Tests_2, Builds_1_Report, Builds_2_Report]
|
||||
needs: [RunConfig, BuildDockers, StyleCheck, FastTest, Builds_1, Builds_2, Builds_1_Report, Builds_2_Report, Tests_1, Tests_2]
|
||||
runs-on: [self-hosted, style-checker]
|
||||
steps:
|
||||
- name: Check out repository code
|
||||
@ -171,7 +171,7 @@ jobs:
|
||||
- name: Finish label
|
||||
run: |
|
||||
cd "$GITHUB_WORKSPACE/tests/ci"
|
||||
python3 finish_check.py
|
||||
python3 finish_check.py ${{ (contains(needs.*.result, 'failure') && github.event_name == 'merge_group') && '--pipeline-failure' || '' }}
|
||||
- name: Auto merge if approved
|
||||
if: ${{ github.event_name != 'merge_group' }}
|
||||
run: |
|
||||
|
||||
2
.github/workflows/reusable_simple_job.yml
vendored
2
.github/workflows/reusable_simple_job.yml
vendored
@ -63,7 +63,7 @@ jobs:
|
||||
GITHUB_JOB_OVERRIDDEN: ${{inputs.test_name}}
|
||||
steps:
|
||||
- name: DebugInfo
|
||||
uses: hmarr/debug-action@a701ed95a46e6f2fb0df25e1a558c16356fae35a
|
||||
uses: hmarr/debug-action@f7318c783045ac39ed9bb497e22ce835fdafbfe6
|
||||
- name: Check out repository code
|
||||
uses: ClickHouse/checkout@v1
|
||||
with:
|
||||
|
||||
@ -16,7 +16,7 @@
|
||||
#ci_set_reduced
|
||||
#ci_set_arm
|
||||
#ci_set_integration
|
||||
#ci_set_analyzer
|
||||
#ci_set_old_analyzer
|
||||
|
||||
## To run specified job in CI:
|
||||
#job_<JOB NAME>
|
||||
|
||||
171
CHANGELOG.md
171
CHANGELOG.md
@ -1,4 +1,5 @@
|
||||
### Table of Contents
|
||||
**[ClickHouse release v24.4, 2024-04-30](#244)**<br/>
|
||||
**[ClickHouse release v24.3 LTS, 2024-03-26](#243)**<br/>
|
||||
**[ClickHouse release v24.2, 2024-02-29](#242)**<br/>
|
||||
**[ClickHouse release v24.1, 2024-01-30](#241)**<br/>
|
||||
@ -6,6 +7,168 @@
|
||||
|
||||
# 2024 Changelog
|
||||
|
||||
### <a id="244"></a> ClickHouse release 24.4 LTS, 2024-04-30
|
||||
|
||||
#### Upgrade Notes
|
||||
* `clickhouse-odbc-bridge` and `clickhouse-library-bridge` are now separate packages. This closes [#61677](https://github.com/ClickHouse/ClickHouse/issues/61677). [#62114](https://github.com/ClickHouse/ClickHouse/pull/62114) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Don't allow to set max_parallel_replicas (for the experimental parallel reading from replicas) to `0` as it doesn't make sense. Closes [#60140](https://github.com/ClickHouse/ClickHouse/issues/60140). [#61201](https://github.com/ClickHouse/ClickHouse/pull/61201) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Remove support for `INSERT WATCH` query (part of the deprecated `LIVE VIEW` feature). [#62382](https://github.com/ClickHouse/ClickHouse/pull/62382) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Removed the `optimize_monotonous_functions_in_order_by` setting. [#63004](https://github.com/ClickHouse/ClickHouse/pull/63004) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Remove experimental tag from the `Replicated` database engine. Now it is in Beta stage. [#62937](https://github.com/ClickHouse/ClickHouse/pull/62937) ([Justin de Guzman](https://github.com/justindeguzman)).
|
||||
|
||||
#### New Feature
|
||||
* Support recursive CTEs. [#62074](https://github.com/ClickHouse/ClickHouse/pull/62074) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Support `QUALIFY` clause. Closes [#47819](https://github.com/ClickHouse/ClickHouse/issues/47819). [#62619](https://github.com/ClickHouse/ClickHouse/pull/62619) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Table engines are grantable now, and it won't affect existing users behavior. [#60117](https://github.com/ClickHouse/ClickHouse/pull/60117) ([jsc0218](https://github.com/jsc0218)).
|
||||
* Added a rewritable S3 disk which supports INSERT operations and does not require locally stored metadata. [#61116](https://github.com/ClickHouse/ClickHouse/pull/61116) ([Julia Kartseva](https://github.com/jkartseva)). The main use case is for system tables.
|
||||
* The syntax highlighting while typing in the client will work on the syntax level (previously, it worked on the lexer level). [#62123](https://github.com/ClickHouse/ClickHouse/pull/62123) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Supports dropping multiple tables at the same time like `DROP TABLE a, b, c`;. [#58705](https://github.com/ClickHouse/ClickHouse/pull/58705) ([zhongyuankai](https://github.com/zhongyuankai)).
|
||||
* Modifying memory table settings through `ALTER MODIFY SETTING` is now supported. Example: `ALTER TABLE memory MODIFY SETTING min_rows_to_keep = 100, max_rows_to_keep = 1000;`. [#62039](https://github.com/ClickHouse/ClickHouse/pull/62039) ([zhongyuankai](https://github.com/zhongyuankai)).
|
||||
* Added `role` query parameter to the HTTP interface. It works similarly to `SET ROLE x`, applying the role before the statement is executed. This allows for overcoming the limitation of the HTTP interface, as multiple statements are not allowed, and it is not possible to send both `SET ROLE x` and the statement itself at the same time. It is possible to set multiple roles that way, e.g., `?role=x&role=y`, which will be an equivalent of `SET ROLE x, y`. [#62669](https://github.com/ClickHouse/ClickHouse/pull/62669) ([Serge Klochkov](https://github.com/slvrtrn)).
|
||||
* Add `SYSTEM UNLOAD PRIMARY KEY` to free up memory usage for a table's primary key. [#62738](https://github.com/ClickHouse/ClickHouse/pull/62738) ([Pablo Marcos](https://github.com/pamarcos)).
|
||||
* Added `value1`, `value2`, ..., `value10` columns to `system.text_log`. These columns contain values that were used to format the message. [#59619](https://github.com/ClickHouse/ClickHouse/pull/59619) ([Alexey Katsman](https://github.com/alexkats)).
|
||||
* Added persistent virtual column `_block_offset` which stores original number of row in block that was assigned at insert. Persistence of column `_block_offset` can be enabled by the MergeTree setting `enable_block_offset_column`. Added virtual column`_part_data_version` which contains either min block number or mutation version of part. Persistent virtual column `_block_number` is not considered experimental anymore. [#60676](https://github.com/ClickHouse/ClickHouse/pull/60676) ([Anton Popov](https://github.com/CurtizJ)).
|
||||
* Add a setting `input_format_json_throw_on_bad_escape_sequence`, disabling it allows saving bad escape sequences in JSON input formats. [#61889](https://github.com/ClickHouse/ClickHouse/pull/61889) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
|
||||
#### Performance Improvement
|
||||
* JOIN filter push down improvements using equivalent sets. [#61216](https://github.com/ClickHouse/ClickHouse/pull/61216) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Convert OUTER JOIN to INNER JOIN optimization if the filter after JOIN always filters default values. Optimization can be controlled with setting `query_plan_convert_outer_join_to_inner_join`, enabled by default. [#62907](https://github.com/ClickHouse/ClickHouse/pull/62907) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Enabled fast Parquet encoder by default (output_format_parquet_use_custom_encoder). [#62088](https://github.com/ClickHouse/ClickHouse/pull/62088) ([Michael Kolupaev](https://github.com/al13n321)).
|
||||
* Improvement for AWS S3. Client has to send header 'Keep-Alive: timeout=X' to the server. If a client receives a response from the server with that header, client has to use the value from the server. Also for a client it is better not to use a connection which is nearly expired in order to avoid connection close race. [#62249](https://github.com/ClickHouse/ClickHouse/pull/62249) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Reduce overhead of the mutations for SELECTs (v2). [#60856](https://github.com/ClickHouse/ClickHouse/pull/60856) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* More frequently invoked functions in PODArray are now force-inlined. [#61144](https://github.com/ClickHouse/ClickHouse/pull/61144) ([李扬](https://github.com/taiyang-li)).
|
||||
* Speed up parsing of JSON by skipping the rest of the object when all required columns are read. [#62210](https://github.com/ClickHouse/ClickHouse/pull/62210) ([lgbo](https://github.com/lgbo-ustc)).
|
||||
* Improve trivial insert select from files in file/s3/hdfs/url/... table functions. Add separate max_parsing_threads setting to control the number of threads used in parallel parsing. [#62404](https://github.com/ClickHouse/ClickHouse/pull/62404) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Functions `to_utc_timestamp` and `from_utc_timestamp` are now about 2x faster. [#62583](https://github.com/ClickHouse/ClickHouse/pull/62583) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Functions `parseDateTimeOrNull`, `parseDateTimeOrZero`, `parseDateTimeInJodaSyntaxOrNull` and `parseDateTimeInJodaSyntaxOrZero` now run significantly faster (10x - 1000x) when the input contains mostly non-parseable values. [#62634](https://github.com/ClickHouse/ClickHouse/pull/62634) ([LiuNeng](https://github.com/liuneng1994)).
|
||||
* SELECTs against `system.query_cache` are now noticeably faster when the query cache contains lots of entries (e.g. more than 100.000). [#62671](https://github.com/ClickHouse/ClickHouse/pull/62671) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* Less contention in filesystem cache (part 3): execute removal from filesystem without lock on space reservation attempt. [#61163](https://github.com/ClickHouse/ClickHouse/pull/61163) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Speed up dynamic resize of filesystem cache. [#61723](https://github.com/ClickHouse/ClickHouse/pull/61723) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Dictionary source with `INVALIDATE_QUERY` is not reloaded twice on startup. [#62050](https://github.com/ClickHouse/ClickHouse/pull/62050) ([vdimir](https://github.com/vdimir)).
|
||||
* Fix an issue where when a redundant `= 1` or `= 0` is added after a boolean expression involving the primary key, the primary index is not used. For example, both `SELECT * FROM <table> WHERE <primary-key> IN (<value>) = 1` and `SELECT * FROM <table> WHERE <primary-key> NOT IN (<value>) = 0` will both perform a full table scan, when the primary index can be used. [#62142](https://github.com/ClickHouse/ClickHouse/pull/62142) ([josh-hildred](https://github.com/josh-hildred)).
|
||||
* Return stream of chunks from `system.remote_data_paths` instead of accumulating the whole result in one big chunk. This allows to consume less memory, show intermediate progress and cancel the query. [#62613](https://github.com/ClickHouse/ClickHouse/pull/62613) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
|
||||
#### Experimental Feature
|
||||
* Support parallel write buffer for Azure Blob Storage managed by setting `azure_allow_parallel_part_upload`. [#62534](https://github.com/ClickHouse/ClickHouse/pull/62534) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Userspace page cache works with static web storage (`disk(type = web)`) now. Use client setting `use_page_cache_for_disks_without_file_cache=1` to enable. [#61911](https://github.com/ClickHouse/ClickHouse/pull/61911) ([Michael Kolupaev](https://github.com/al13n321)).
|
||||
* Don't treat Bool and number variants as suspicious in the `Variant` type. [#61999](https://github.com/ClickHouse/ClickHouse/pull/61999) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Implement better conversion from String to `Variant` using parsing. [#62005](https://github.com/ClickHouse/ClickHouse/pull/62005) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Support `Variant` in JSONExtract functions. [#62014](https://github.com/ClickHouse/ClickHouse/pull/62014) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Mark type `Variant` as comparable so it can be used in primary key. [#62693](https://github.com/ClickHouse/ClickHouse/pull/62693) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
|
||||
#### Improvement
|
||||
* For convenience purpose, `SELECT * FROM numbers() `will work in the same way as `SELECT * FROM system.numbers` - without a limit. [#61969](https://github.com/ClickHouse/ClickHouse/pull/61969) ([YenchangChan](https://github.com/YenchangChan)).
|
||||
* Introduce separate consumer/producer tags for the Kafka configuration. This avoids warnings from librdkafka (a bad C library with a lot of bugs) that consumer properties were specified for producer instances and vice versa (e.g. `Configuration property session.timeout.ms is a consumer property and will be ignored by this producer instance`). Closes: [#58983](https://github.com/ClickHouse/ClickHouse/issues/58983). [#58956](https://github.com/ClickHouse/ClickHouse/pull/58956) ([Aleksandr Musorin](https://github.com/AVMusorin)).
|
||||
* Functions `date_diff` and `age` now calculate their result at nanosecond instead of microsecond precision. They now also offer `nanosecond` (or `nanoseconds` or `ns`) as a possible value for the `unit` parameter. [#61409](https://github.com/ClickHouse/ClickHouse/pull/61409) ([Austin Kothig](https://github.com/kothiga)).
|
||||
* Added nano-, micro-, milliseconds unit for `date_trunc`. [#62335](https://github.com/ClickHouse/ClickHouse/pull/62335) ([Misz606](https://github.com/Misz606)).
|
||||
* Reload certificate chain during certificate reload. [#61671](https://github.com/ClickHouse/ClickHouse/pull/61671) ([Pervakov Grigorii](https://github.com/GrigoryPervakov)).
|
||||
* Try to prevent an error [#60432](https://github.com/ClickHouse/ClickHouse/issues/60432) by not allowing a table to be attached if there is an active replica for that replica path. [#61876](https://github.com/ClickHouse/ClickHouse/pull/61876) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Implement support for `input` for `clickhouse-local`. [#61923](https://github.com/ClickHouse/ClickHouse/pull/61923) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* `Join` table engine with strictness `ANY` is consistent after reload. When several rows with the same key are inserted, the first one will have higher priority (before, it was chosen randomly upon table loading). close [#51027](https://github.com/ClickHouse/ClickHouse/issues/51027). [#61972](https://github.com/ClickHouse/ClickHouse/pull/61972) ([vdimir](https://github.com/vdimir)).
|
||||
* Automatically infer Nullable column types from Apache Arrow schema. [#61984](https://github.com/ClickHouse/ClickHouse/pull/61984) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Allow to cancel parallel merge of aggregate states during aggregation. Example: `uniqExact`. [#61992](https://github.com/ClickHouse/ClickHouse/pull/61992) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
* Use `system.keywords` to fill in the suggestions and also use them in the all places internally. [#62000](https://github.com/ClickHouse/ClickHouse/pull/62000) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* `OPTIMIZE FINAL` for `ReplicatedMergeTree` now will wait for currently active merges to finish and then reattempt to schedule a final merge. This will put it more in line with ordinary `MergeTree` behaviour. [#62067](https://github.com/ClickHouse/ClickHouse/pull/62067) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* While read data from a hive text file, it would use the first line of hive text file to resize of number of input fields, and sometimes the fields number of first line is not matched with the hive table defined , such as the hive table is defined to have 3 columns, like `test_tbl(a Int32, b Int32, c Int32)`, but the first line of text file only has 2 fields, and in this suitation, the input fields will be resized to 2, and if the next line of the text file has 3 fields, then the third field can not be read but set a default value 0, which is not right. [#62086](https://github.com/ClickHouse/ClickHouse/pull/62086) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* `CREATE AS` copies the table's comment. [#62117](https://github.com/ClickHouse/ClickHouse/pull/62117) ([Pablo Marcos](https://github.com/pamarcos)).
|
||||
* Add query progress to table zookeeper. [#62152](https://github.com/ClickHouse/ClickHouse/pull/62152) ([JackyWoo](https://github.com/JackyWoo)).
|
||||
* Add ability to turn on trace collector (Real and CPU) server-wide. [#62189](https://github.com/ClickHouse/ClickHouse/pull/62189) ([alesapin](https://github.com/alesapin)).
|
||||
* Added setting `lightweight_deletes_sync` (default value: 2 - wait all replicas synchronously). It is similar to setting `mutations_sync` but affects only behaviour of lightweight deletes. [#62195](https://github.com/ClickHouse/ClickHouse/pull/62195) ([Anton Popov](https://github.com/CurtizJ)).
|
||||
* Distinguish booleans and integers while parsing values for custom settings: `SET custom_a = true; SET custom_b = 1;`. [#62206](https://github.com/ClickHouse/ClickHouse/pull/62206) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Support S3 access through AWS Private Link Interface endpoints. Closes [#60021](https://github.com/ClickHouse/ClickHouse/issues/60021), [#31074](https://github.com/ClickHouse/ClickHouse/issues/31074) and [#53761](https://github.com/ClickHouse/ClickHouse/issues/53761). [#62208](https://github.com/ClickHouse/ClickHouse/pull/62208) ([Arthur Passos](https://github.com/arthurpassos)).
|
||||
* Do not create a directory for UDF in clickhouse-client if it does not exist. This closes [#59597](https://github.com/ClickHouse/ClickHouse/issues/59597). [#62366](https://github.com/ClickHouse/ClickHouse/pull/62366) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* The query cache now no longer caches results of queries against system tables (`system.*`, `information_schema.*`, `INFORMATION_SCHEMA.*`). [#62376](https://github.com/ClickHouse/ClickHouse/pull/62376) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* `MOVE PARTITION TO TABLE` query can be delayed or can throw `TOO_MANY_PARTS` exception to avoid exceeding limits on the part count. The same settings and limits are applied as for the`INSERT` query (see `max_parts_in_total`, `parts_to_delay_insert`, `parts_to_throw_insert`, `inactive_parts_to_throw_insert`, `inactive_parts_to_delay_insert`, `max_avg_part_size_for_too_many_parts`, `min_delay_to_insert_ms` and `max_delay_to_insert` settings). [#62420](https://github.com/ClickHouse/ClickHouse/pull/62420) ([Sergei Trifonov](https://github.com/serxa)).
|
||||
* Changed the default installation directory on macOS from `/usr/bin` to `/usr/local/bin`. This is necessary because Apple's System Integrity Protection introduced with macOS El Capitan (2015) prevents writing into `/usr/bin`, even with `sudo`. [#62489](https://github.com/ClickHouse/ClickHouse/pull/62489) ([haohang](https://github.com/yokofly)).
|
||||
* Make transform always return the first match. [#62518](https://github.com/ClickHouse/ClickHouse/pull/62518) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Added the missing `hostname` column to system table `blob_storage_log`. [#62456](https://github.com/ClickHouse/ClickHouse/pull/62456) ([Jayme Bird](https://github.com/jaymebrd)).
|
||||
* For consistency with other system tables, `system.backup_log` now has a column `event_time`. [#62541](https://github.com/ClickHouse/ClickHouse/pull/62541) ([Jayme Bird](https://github.com/jaymebrd)).
|
||||
* Table `system.backup_log` now has the "default" sorting key which is `event_date, event_time`, the same as for other `_log` table engines. [#62667](https://github.com/ClickHouse/ClickHouse/pull/62667) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Avoid evaluating table DEFAULT expressions while executing `RESTORE`. [#62601](https://github.com/ClickHouse/ClickHouse/pull/62601) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* S3 storage and backups also need the same default keep alive settings as s3 disk. [#62648](https://github.com/ClickHouse/ClickHouse/pull/62648) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Add librdkafka's (that infamous C library, which has a lot of bugs) client identifier to log messages to be able to differentiate log messages from different consumers of a single table. [#62813](https://github.com/ClickHouse/ClickHouse/pull/62813) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
|
||||
* Allow special macros `{uuid}` and `{database}` in a Replicated database ZooKeeper path. [#62818](https://github.com/ClickHouse/ClickHouse/pull/62818) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Allow quota key with different auth scheme in HTTP requests. [#62842](https://github.com/ClickHouse/ClickHouse/pull/62842) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Reduce the verbosity of command line argument `--help` in `clickhouse client` and `clickhouse local`. The previous output is now generated by `--help --verbose`. [#62973](https://github.com/ClickHouse/ClickHouse/pull/62973) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
|
||||
* `log_bin_use_v1_row_events` was removed in MySQL 8.3, and we adjust the experimental `MaterializedMySQL` engine for it [#60479](https://github.com/ClickHouse/ClickHouse/issues/60479). [#63101](https://github.com/ClickHouse/ClickHouse/pull/63101) ([Eugene Klimov](https://github.com/Slach)). Author: Nikolay Yankin.
|
||||
|
||||
#### Build/Testing/Packaging Improvement
|
||||
* Vendor in Rust dependencies, so the Rust code (that we use for minor features for hype and lulz) can be built in a sane way, similarly to C++. [#62297](https://github.com/ClickHouse/ClickHouse/pull/62297) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* ClickHouse now uses OpenSSL 3.2 instead of BoringSSL. [#59870](https://github.com/ClickHouse/ClickHouse/pull/59870) ([Robert Schulze](https://github.com/rschu1ze)). Note that OpenSSL has generally worse engineering culture (such as non-zero number of sanitizer reports, that we had to patch, a complex build system with generated files, etc.) but has better compatibility.
|
||||
* Ignore DROP queries in stress test with 1/2 probability, use TRUNCATE instead of ignoring DROP in upgrade check for Memory/JOIN tables. [#61476](https://github.com/ClickHouse/ClickHouse/pull/61476) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Remove from the Keeper Docker image the volumes at /etc/clickhouse-keeper and /var/log/clickhouse-keeper. [#61683](https://github.com/ClickHouse/ClickHouse/pull/61683) ([Tristan](https://github.com/Tristan971)).
|
||||
* Add tests for all issues which are no longer relevant with Analyzer being enabled by default. Closes: [#55794](https://github.com/ClickHouse/ClickHouse/issues/55794) Closes: [#49472](https://github.com/ClickHouse/ClickHouse/issues/49472) Closes: [#44414](https://github.com/ClickHouse/ClickHouse/issues/44414) Closes: [#13843](https://github.com/ClickHouse/ClickHouse/issues/13843) Closes: [#55803](https://github.com/ClickHouse/ClickHouse/issues/55803) Closes: [#48308](https://github.com/ClickHouse/ClickHouse/issues/48308) Closes: [#45535](https://github.com/ClickHouse/ClickHouse/issues/45535) Closes: [#44365](https://github.com/ClickHouse/ClickHouse/issues/44365) Closes: [#44153](https://github.com/ClickHouse/ClickHouse/issues/44153) Closes: [#42399](https://github.com/ClickHouse/ClickHouse/issues/42399) Closes: [#27115](https://github.com/ClickHouse/ClickHouse/issues/27115) Closes: [#23162](https://github.com/ClickHouse/ClickHouse/issues/23162) Closes: [#15395](https://github.com/ClickHouse/ClickHouse/issues/15395) Closes: [#15411](https://github.com/ClickHouse/ClickHouse/issues/15411) Closes: [#14978](https://github.com/ClickHouse/ClickHouse/issues/14978) Closes: [#17319](https://github.com/ClickHouse/ClickHouse/issues/17319) Closes: [#11813](https://github.com/ClickHouse/ClickHouse/issues/11813) Closes: [#13210](https://github.com/ClickHouse/ClickHouse/issues/13210) Closes: [#23053](https://github.com/ClickHouse/ClickHouse/issues/23053) Closes: [#37729](https://github.com/ClickHouse/ClickHouse/issues/37729) Closes: [#32639](https://github.com/ClickHouse/ClickHouse/issues/32639) Closes: [#9954](https://github.com/ClickHouse/ClickHouse/issues/9954) Closes: [#41964](https://github.com/ClickHouse/ClickHouse/issues/41964) Closes: [#54317](https://github.com/ClickHouse/ClickHouse/issues/54317) Closes: [#7520](https://github.com/ClickHouse/ClickHouse/issues/7520) Closes: [#36973](https://github.com/ClickHouse/ClickHouse/issues/36973) Closes: [#40955](https://github.com/ClickHouse/ClickHouse/issues/40955) Closes: [#19687](https://github.com/ClickHouse/ClickHouse/issues/19687) Closes: [#23104](https://github.com/ClickHouse/ClickHouse/issues/23104) Closes: [#21584](https://github.com/ClickHouse/ClickHouse/issues/21584) Closes: [#23344](https://github.com/ClickHouse/ClickHouse/issues/23344) Closes: [#22627](https://github.com/ClickHouse/ClickHouse/issues/22627) Closes: [#10276](https://github.com/ClickHouse/ClickHouse/issues/10276) Closes: [#19687](https://github.com/ClickHouse/ClickHouse/issues/19687) Closes: [#4567](https://github.com/ClickHouse/ClickHouse/issues/4567) Closes: [#17710](https://github.com/ClickHouse/ClickHouse/issues/17710) Closes: [#11068](https://github.com/ClickHouse/ClickHouse/issues/11068) Closes: [#24395](https://github.com/ClickHouse/ClickHouse/issues/24395) Closes: [#23416](https://github.com/ClickHouse/ClickHouse/issues/23416) Closes: [#23162](https://github.com/ClickHouse/ClickHouse/issues/23162) Closes: [#25655](https://github.com/ClickHouse/ClickHouse/issues/25655) Closes: [#11757](https://github.com/ClickHouse/ClickHouse/issues/11757) Closes: [#6571](https://github.com/ClickHouse/ClickHouse/issues/6571) Closes: [#4432](https://github.com/ClickHouse/ClickHouse/issues/4432) Closes: [#8259](https://github.com/ClickHouse/ClickHouse/issues/8259) Closes: [#9233](https://github.com/ClickHouse/ClickHouse/issues/9233) Closes: [#14699](https://github.com/ClickHouse/ClickHouse/issues/14699) Closes: [#27068](https://github.com/ClickHouse/ClickHouse/issues/27068) Closes: [#28687](https://github.com/ClickHouse/ClickHouse/issues/28687) Closes: [#28777](https://github.com/ClickHouse/ClickHouse/issues/28777) Closes: [#29734](https://github.com/ClickHouse/ClickHouse/issues/29734) Closes: [#61238](https://github.com/ClickHouse/ClickHouse/issues/61238) Closes: [#33825](https://github.com/ClickHouse/ClickHouse/issues/33825) Closes: [#35608](https://github.com/ClickHouse/ClickHouse/issues/35608) Closes: [#29838](https://github.com/ClickHouse/ClickHouse/issues/29838) Closes: [#35652](https://github.com/ClickHouse/ClickHouse/issues/35652) Closes: [#36189](https://github.com/ClickHouse/ClickHouse/issues/36189) Closes: [#39634](https://github.com/ClickHouse/ClickHouse/issues/39634) Closes: [#47432](https://github.com/ClickHouse/ClickHouse/issues/47432) Closes: [#54910](https://github.com/ClickHouse/ClickHouse/issues/54910) Closes: [#57321](https://github.com/ClickHouse/ClickHouse/issues/57321) Closes: [#59154](https://github.com/ClickHouse/ClickHouse/issues/59154) Closes: [#61014](https://github.com/ClickHouse/ClickHouse/issues/61014) Closes: [#61950](https://github.com/ClickHouse/ClickHouse/issues/61950) Closes: [#55647](https://github.com/ClickHouse/ClickHouse/issues/55647) Closes: [#61947](https://github.com/ClickHouse/ClickHouse/issues/61947). [#62185](https://github.com/ClickHouse/ClickHouse/pull/62185) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Add more tests from issues which are no longer relevant or fixed by analyzer. Closes: [#58985](https://github.com/ClickHouse/ClickHouse/issues/58985) Closes: [#59549](https://github.com/ClickHouse/ClickHouse/issues/59549) Closes: [#36963](https://github.com/ClickHouse/ClickHouse/issues/36963) Closes: [#39453](https://github.com/ClickHouse/ClickHouse/issues/39453) Closes: [#56521](https://github.com/ClickHouse/ClickHouse/issues/56521) Closes: [#47552](https://github.com/ClickHouse/ClickHouse/issues/47552) Closes: [#56503](https://github.com/ClickHouse/ClickHouse/issues/56503) Closes: [#59101](https://github.com/ClickHouse/ClickHouse/issues/59101) Closes: [#50271](https://github.com/ClickHouse/ClickHouse/issues/50271) Closes: [#54954](https://github.com/ClickHouse/ClickHouse/issues/54954) Closes: [#56466](https://github.com/ClickHouse/ClickHouse/issues/56466) Closes: [#11000](https://github.com/ClickHouse/ClickHouse/issues/11000) Closes: [#10894](https://github.com/ClickHouse/ClickHouse/issues/10894) Closes: https://github.com/ClickHouse/ClickHouse/issues/448 Closes: [#8030](https://github.com/ClickHouse/ClickHouse/issues/8030) Closes: [#32139](https://github.com/ClickHouse/ClickHouse/issues/32139) Closes: [#47288](https://github.com/ClickHouse/ClickHouse/issues/47288) Closes: [#50705](https://github.com/ClickHouse/ClickHouse/issues/50705) Closes: [#54511](https://github.com/ClickHouse/ClickHouse/issues/54511) Closes: [#55466](https://github.com/ClickHouse/ClickHouse/issues/55466) Closes: [#58500](https://github.com/ClickHouse/ClickHouse/issues/58500) Closes: [#39923](https://github.com/ClickHouse/ClickHouse/issues/39923) Closes: [#39855](https://github.com/ClickHouse/ClickHouse/issues/39855) Closes: [#4596](https://github.com/ClickHouse/ClickHouse/issues/4596) Closes: [#47422](https://github.com/ClickHouse/ClickHouse/issues/47422) Closes: [#33000](https://github.com/ClickHouse/ClickHouse/issues/33000) Closes: [#14739](https://github.com/ClickHouse/ClickHouse/issues/14739) Closes: [#44039](https://github.com/ClickHouse/ClickHouse/issues/44039) Closes: [#8547](https://github.com/ClickHouse/ClickHouse/issues/8547) Closes: [#22923](https://github.com/ClickHouse/ClickHouse/issues/22923) Closes: [#23865](https://github.com/ClickHouse/ClickHouse/issues/23865) Closes: [#29748](https://github.com/ClickHouse/ClickHouse/issues/29748) Closes: [#4222](https://github.com/ClickHouse/ClickHouse/issues/4222). [#62457](https://github.com/ClickHouse/ClickHouse/pull/62457) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Fixed build errors when OpenSSL is linked dynamically (note: this is generally unsupported and only required for IBM's s390x platforms). [#62888](https://github.com/ClickHouse/ClickHouse/pull/62888) ([Harry Lee](https://github.com/HarryLeeIBM)).
|
||||
|
||||
#### Bug Fix (user-visible misbehavior in an official stable release)
|
||||
* Fix logical-error when undoing quorum insert transaction. [#61953](https://github.com/ClickHouse/ClickHouse/pull/61953) ([Han Fei](https://github.com/hanfei1991)).
|
||||
* Fix parser error when using COUNT(*) with FILTER clause [#61357](https://github.com/ClickHouse/ClickHouse/pull/61357) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Fix logical error in `group_by_use_nulls` + grouping sets + analyzer + materialize/constant [#61567](https://github.com/ClickHouse/ClickHouse/pull/61567) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Cancel merges before removing moved parts [#61610](https://github.com/ClickHouse/ClickHouse/pull/61610) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
|
||||
* Fix abort in Apache Arrow [#61720](https://github.com/ClickHouse/ClickHouse/pull/61720) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Search for `convert_to_replicated` flag at the correct path corresponding to the specific disk [#61769](https://github.com/ClickHouse/ClickHouse/pull/61769) ([Kirill](https://github.com/kirillgarbar)).
|
||||
* Fix possible connections data-race for distributed_foreground_insert/distributed_background_insert_batch [#61867](https://github.com/ClickHouse/ClickHouse/pull/61867) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Mark CANNOT_PARSE_ESCAPE_SEQUENCE error as parse error to be able to skip it in row input formats [#61883](https://github.com/ClickHouse/ClickHouse/pull/61883) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix writing exception message in output format in HTTP when http_wait_end_of_query is used [#61951](https://github.com/ClickHouse/ClickHouse/pull/61951) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Proper fix for LowCardinality together with JSONExtact functions [#61957](https://github.com/ClickHouse/ClickHouse/pull/61957) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
|
||||
* Crash in Engine Merge if Row Policy does not have expression [#61971](https://github.com/ClickHouse/ClickHouse/pull/61971) ([Ilya Golshtein](https://github.com/ilejn)).
|
||||
* Fix WriteBufferAzureBlobStorage destructor uncaught exception [#61988](https://github.com/ClickHouse/ClickHouse/pull/61988) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Fix CREATE TABLE without columns definition for ReplicatedMergeTree [#62040](https://github.com/ClickHouse/ClickHouse/pull/62040) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Fix optimize_skip_unused_shards_rewrite_in for composite sharding key [#62047](https://github.com/ClickHouse/ClickHouse/pull/62047) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* ReadWriteBufferFromHTTP set right header host when redirected [#62068](https://github.com/ClickHouse/ClickHouse/pull/62068) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Fix external table cannot parse data type Bool [#62115](https://github.com/ClickHouse/ClickHouse/pull/62115) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Analyzer: Fix query parameter resolution [#62186](https://github.com/ClickHouse/ClickHouse/pull/62186) ([Dmitry Novik](https://github.com/novikd)).
|
||||
* Fix restoring parts while readonly [#62207](https://github.com/ClickHouse/ClickHouse/pull/62207) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Fix crash in index definition containing SQL UDF [#62225](https://github.com/ClickHouse/ClickHouse/pull/62225) ([vdimir](https://github.com/vdimir)).
|
||||
* Fixing NULL random seed for generateRandom with analyzer. [#62248](https://github.com/ClickHouse/ClickHouse/pull/62248) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Correctly handle const columns in Distinct Transfom [#62250](https://github.com/ClickHouse/ClickHouse/pull/62250) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix Parts Splitter for queries with the FINAL modifier [#62268](https://github.com/ClickHouse/ClickHouse/pull/62268) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Analyzer: Fix alias to parametrized view resolution [#62274](https://github.com/ClickHouse/ClickHouse/pull/62274) ([Dmitry Novik](https://github.com/novikd)).
|
||||
* Analyzer: Fix name resolution from parent scopes [#62281](https://github.com/ClickHouse/ClickHouse/pull/62281) ([Dmitry Novik](https://github.com/novikd)).
|
||||
* Fix argMax with nullable non native numeric column [#62285](https://github.com/ClickHouse/ClickHouse/pull/62285) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix BACKUP and RESTORE of a materialized view in Ordinary database [#62295](https://github.com/ClickHouse/ClickHouse/pull/62295) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Fix data race on scalars in Context [#62305](https://github.com/ClickHouse/ClickHouse/pull/62305) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix primary key in materialized view [#62319](https://github.com/ClickHouse/ClickHouse/pull/62319) ([Murat Khairulin](https://github.com/mxwell)).
|
||||
* Do not build multithread insert pipeline for tables without support [#62333](https://github.com/ClickHouse/ClickHouse/pull/62333) ([vdimir](https://github.com/vdimir)).
|
||||
* Fix analyzer with positional arguments in distributed query [#62362](https://github.com/ClickHouse/ClickHouse/pull/62362) ([flynn](https://github.com/ucasfl)).
|
||||
* Fix filter pushdown from additional_table_filters in Merge engine in analyzer [#62398](https://github.com/ClickHouse/ClickHouse/pull/62398) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix GLOBAL IN table queries with analyzer. [#62409](https://github.com/ClickHouse/ClickHouse/pull/62409) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Respect settings truncate_on_insert/create_new_file_on_insert in s3/hdfs/azure engines during partitioned write [#62425](https://github.com/ClickHouse/ClickHouse/pull/62425) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Fix backup restore path for AzureBlobStorage [#62447](https://github.com/ClickHouse/ClickHouse/pull/62447) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
|
||||
* Fix SimpleSquashingChunksTransform [#62451](https://github.com/ClickHouse/ClickHouse/pull/62451) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Fix capture of nested lambda. [#62462](https://github.com/ClickHouse/ClickHouse/pull/62462) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Avoid crash when reading protobuf with recursive types [#62506](https://github.com/ClickHouse/ClickHouse/pull/62506) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix a bug moving one partition from one to itself [#62524](https://github.com/ClickHouse/ClickHouse/pull/62524) ([helifu](https://github.com/helifu)).
|
||||
* Fix scalar subquery in LIMIT [#62567](https://github.com/ClickHouse/ClickHouse/pull/62567) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix segfault in the experimental and unsupported Hive engine, which we don't like anyway [#62578](https://github.com/ClickHouse/ClickHouse/pull/62578) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Fix memory leak in groupArraySorted [#62597](https://github.com/ClickHouse/ClickHouse/pull/62597) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
* Fix crash in largestTriangleThreeBuckets [#62646](https://github.com/ClickHouse/ClickHouse/pull/62646) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix tumble\[Start,End\] and hop\[Start,End\] for bigger resolutions [#62705](https://github.com/ClickHouse/ClickHouse/pull/62705) ([Jordi Villar](https://github.com/jrdi)).
|
||||
* Fix argMin/argMax combinator state [#62708](https://github.com/ClickHouse/ClickHouse/pull/62708) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix temporary data in cache failing because of cache lock contention optimization [#62715](https://github.com/ClickHouse/ClickHouse/pull/62715) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix crash in function `mergeTreeIndex` [#62762](https://github.com/ClickHouse/ClickHouse/pull/62762) ([Anton Popov](https://github.com/CurtizJ)).
|
||||
* fix: update: nested materialized columns: size check fixes [#62773](https://github.com/ClickHouse/ClickHouse/pull/62773) ([Eliot Hautefeuille](https://github.com/hileef)).
|
||||
* Fix FINAL modifier is not respected in CTE with analyzer [#62811](https://github.com/ClickHouse/ClickHouse/pull/62811) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Fix crash in function `formatRow` with `JSON` format and HTTP interface [#62840](https://github.com/ClickHouse/ClickHouse/pull/62840) ([Anton Popov](https://github.com/CurtizJ)).
|
||||
* Azure: fix building final url from endpoint object [#62850](https://github.com/ClickHouse/ClickHouse/pull/62850) ([Daniel Pozo Escalona](https://github.com/danipozo)).
|
||||
* Fix GCD codec [#62853](https://github.com/ClickHouse/ClickHouse/pull/62853) ([Nikita Taranov](https://github.com/nickitat)).
|
||||
* Fix LowCardinality(Nullable) key in hyperrectangle [#62866](https://github.com/ClickHouse/ClickHouse/pull/62866) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Fix fromUnixtimestamp in joda syntax while the input value beyond UInt32 [#62901](https://github.com/ClickHouse/ClickHouse/pull/62901) ([KevinyhZou](https://github.com/KevinyhZou)).
|
||||
* Disable optimize_rewrite_aggregate_function_with_if for sum(nullable) [#62912](https://github.com/ClickHouse/ClickHouse/pull/62912) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix PREWHERE for StorageBuffer with different source table column types. [#62916](https://github.com/ClickHouse/ClickHouse/pull/62916) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix temporary data in cache incorrectly processing failure of cache key directory creation [#62925](https://github.com/ClickHouse/ClickHouse/pull/62925) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* gRPC: fix crash on IPv6 peer connection [#62978](https://github.com/ClickHouse/ClickHouse/pull/62978) ([Konstantin Bogdanov](https://github.com/thevar1able)).
|
||||
* Fix possible CHECKSUM_DOESNT_MATCH (and others) during replicated fetches [#62987](https://github.com/ClickHouse/ClickHouse/pull/62987) ([Azat Khuzhin](https://github.com/azat)).
|
||||
* Fix terminate with uncaught exception in temporary data in cache [#62998](https://github.com/ClickHouse/ClickHouse/pull/62998) ([Kseniia Sumarokova](https://github.com/kssenii)).
|
||||
* Fix optimize_rewrite_aggregate_function_with_if implicit cast [#62999](https://github.com/ClickHouse/ClickHouse/pull/62999) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Fix unhandled exception in ~RestorerFromBackup [#63040](https://github.com/ClickHouse/ClickHouse/pull/63040) ([Vitaly Baranov](https://github.com/vitlibar)).
|
||||
* Do not remove server constants from GROUP BY key for secondary query. [#63047](https://github.com/ClickHouse/ClickHouse/pull/63047) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
|
||||
* Fix incorrect judgement of of monotonicity of function abs [#63097](https://github.com/ClickHouse/ClickHouse/pull/63097) ([Duc Canh Le](https://github.com/canhld94)).
|
||||
* Set server name for SSL handshake in MongoDB engine [#63122](https://github.com/ClickHouse/ClickHouse/pull/63122) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
* Use user specified db instead of "config" for MongoDB wire protocol version check [#63126](https://github.com/ClickHouse/ClickHouse/pull/63126) ([Alexander Gololobov](https://github.com/davenger)).
|
||||
|
||||
|
||||
### <a id="243"></a> ClickHouse release 24.3 LTS, 2024-03-27
|
||||
|
||||
#### Upgrade Notes
|
||||
@ -38,9 +201,9 @@
|
||||
* Optimized function `dotProduct` to omit unnecessary and expensive memory copies. [#60928](https://github.com/ClickHouse/ClickHouse/pull/60928) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
* 30x faster printing for 256-bit integers. [#61100](https://github.com/ClickHouse/ClickHouse/pull/61100) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* If the table's primary key contains mostly useless columns, don't keep them in memory. This is controlled by a new setting `primary_key_ratio_of_unique_prefix_values_to_skip_suffix_columns` with the value `0.9` by default, which means: for a composite primary key, if a column changes its value for at least 0.9 of all the times, the next columns after it will be not loaded. [#60255](https://github.com/ClickHouse/ClickHouse/pull/60255) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Improve the performance of serialized aggregation method when involving multiple `Nullable` columns. [#55809](https://github.com/ClickHouse/ClickHouse/pull/55809) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Lazy build JSON's output to improve performance of ALL JOIN. [#58278](https://github.com/ClickHouse/ClickHouse/pull/58278) ([LiuNeng](https://github.com/liuneng1994)).
|
||||
* Make HTTP/HTTPs connections with external services, such as AWS S3 reusable for all uses cases. Even when response is 3xx or 4xx. [#58845](https://github.com/ClickHouse/ClickHouse/pull/58845) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Improve the performance of serialized aggregation methods when involving multiple `Nullable` columns. [#55809](https://github.com/ClickHouse/ClickHouse/pull/55809) ([Amos Bird](https://github.com/amosbird)).
|
||||
* Lazy builds JSON's output to improve performance of ALL JOIN. [#58278](https://github.com/ClickHouse/ClickHouse/pull/58278) ([LiuNeng](https://github.com/liuneng1994)).
|
||||
* Make HTTP/HTTPs connections with external services, such as AWS S3 reusable for all use cases. Even when the response is 3xx or 4xx. [#58845](https://github.com/ClickHouse/ClickHouse/pull/58845) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
* Improvements to aggregate functions `argMin` / `argMax` / `any` / `anyLast` / `anyHeavy`, as well as `ORDER BY {u8/u16/u32/u64/i8/i16/u32/i64) LIMIT 1` queries. [#58640](https://github.com/ClickHouse/ClickHouse/pull/58640) ([Raúl Marín](https://github.com/Algunenano)).
|
||||
* Trivial optimization for column's filter. Peak memory can be reduced to 44% of the original in some cases. [#59698](https://github.com/ClickHouse/ClickHouse/pull/59698) ([李扬](https://github.com/taiyang-li)).
|
||||
* Execute `multiIf` function in a columnar fashion when the result type's underlying type is a number. [#60384](https://github.com/ClickHouse/ClickHouse/pull/60384) ([李扬](https://github.com/taiyang-li)).
|
||||
@ -49,7 +212,7 @@
|
||||
* Optimize data movement between columns of a Nullable number or a Nullable string, which improves some micro-benchmarks. [#60846](https://github.com/ClickHouse/ClickHouse/pull/60846) ([李扬](https://github.com/taiyang-li)).
|
||||
* Operations with the filesystem cache will suffer less from the lock contention. [#61066](https://github.com/ClickHouse/ClickHouse/pull/61066) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Optimize array join and other JOINs by preventing a wrong compiler's optimization. Close [#61074](https://github.com/ClickHouse/ClickHouse/issues/61074). [#61075](https://github.com/ClickHouse/ClickHouse/pull/61075) ([李扬](https://github.com/taiyang-li)).
|
||||
* If a query with a syntax error contained `COLUMNS` matcher with a regular expression, the regular expression was compiled each time during the parser's backtracking, instead of being compiled once. This was a fundamental error. The compiled regexp was put to AST. But the letter A in AST means "abstract" which means it should not contain heavyweight objects. Parts of AST can be created and discarded during parsing, including a large number of backtracking. This leads to slowness on the parsing side and consequently allows DoS by a readonly user. But the main problem is that it prevents progress in fuzzers. [#61543](https://github.com/ClickHouse/ClickHouse/pull/61543) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* If a query with a syntax error contained the `COLUMNS` matcher with a regular expression, the regular expression was compiled each time during the parser's backtracking, instead of being compiled once. This was a fundamental error. The compiled regexp was put to AST. But the letter A in AST means "abstract" which means it should not contain heavyweight objects. Parts of AST can be created and discarded during parsing, including a large number of backtracking. This leads to slowness on the parsing side and consequently allows DoS by a readonly user. But the main problem is that it prevents progress in fuzzers. [#61543](https://github.com/ClickHouse/ClickHouse/pull/61543) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
|
||||
* Add a new analyzer pass to optimize the IN operator for a single value. [#61564](https://github.com/ClickHouse/ClickHouse/pull/61564) ([LiuNeng](https://github.com/liuneng1994)).
|
||||
* DNSResolver shuffles set of resolved IPs which is needed to uniformly utilize multiple endpoints of AWS S3. [#60965](https://github.com/ClickHouse/ClickHouse/pull/60965) ([Sema Checherinda](https://github.com/CheSema)).
|
||||
|
||||
|
||||
@ -8,9 +8,6 @@ option (SANITIZE "Enable one of the code sanitizers" "")
|
||||
|
||||
set (SAN_FLAGS "${SAN_FLAGS} -g -fno-omit-frame-pointer -DSANITIZER")
|
||||
|
||||
# It's possible to pass an ignore list to sanitizers (-fsanitize-ignorelist). Intentionally not doing this because
|
||||
# 1. out-of-source suppressions are awkward 2. it seems ignore lists don't work after the Clang v16 upgrade (#49829)
|
||||
|
||||
if (SANITIZE)
|
||||
if (SANITIZE STREQUAL "address")
|
||||
set (ASAN_FLAGS "-fsanitize=address -fsanitize-address-use-after-scope")
|
||||
|
||||
2
contrib/curl
vendored
2
contrib/curl
vendored
@ -1 +1 @@
|
||||
Subproject commit 1a05e833f8f7140628b27882b10525fd9ec4b873
|
||||
Subproject commit de7b3e89218467159a7af72d58cea8425946e97d
|
||||
@ -33,14 +33,15 @@ set (SRCS
|
||||
"${LIBRARY_DIR}/lib/curl_memrchr.c"
|
||||
"${LIBRARY_DIR}/lib/curl_multibyte.c"
|
||||
"${LIBRARY_DIR}/lib/curl_ntlm_core.c"
|
||||
"${LIBRARY_DIR}/lib/curl_ntlm_wb.c"
|
||||
"${LIBRARY_DIR}/lib/curl_path.c"
|
||||
"${LIBRARY_DIR}/lib/curl_range.c"
|
||||
"${LIBRARY_DIR}/lib/curl_rtmp.c"
|
||||
"${LIBRARY_DIR}/lib/curl_sasl.c"
|
||||
"${LIBRARY_DIR}/lib/curl_sha512_256.c"
|
||||
"${LIBRARY_DIR}/lib/curl_sspi.c"
|
||||
"${LIBRARY_DIR}/lib/curl_threads.c"
|
||||
"${LIBRARY_DIR}/lib/curl_trc.c"
|
||||
"${LIBRARY_DIR}/lib/cw-out.c"
|
||||
"${LIBRARY_DIR}/lib/dict.c"
|
||||
"${LIBRARY_DIR}/lib/doh.c"
|
||||
"${LIBRARY_DIR}/lib/dynbuf.c"
|
||||
@ -98,6 +99,7 @@ set (SRCS
|
||||
"${LIBRARY_DIR}/lib/psl.c"
|
||||
"${LIBRARY_DIR}/lib/rand.c"
|
||||
"${LIBRARY_DIR}/lib/rename.c"
|
||||
"${LIBRARY_DIR}/lib/request.c"
|
||||
"${LIBRARY_DIR}/lib/rtsp.c"
|
||||
"${LIBRARY_DIR}/lib/select.c"
|
||||
"${LIBRARY_DIR}/lib/sendf.c"
|
||||
|
||||
@ -38,6 +38,7 @@
|
||||
|
||||
#define HAVE_ARPA_INET_H
|
||||
#define HAVE_ERRNO_H
|
||||
#define HAVE_GETSOCKNAME
|
||||
#define HAVE_FCNTL_H
|
||||
#define HAVE_NETDB_H
|
||||
#define HAVE_NETINET_IN_H
|
||||
|
||||
2
contrib/openssl
vendored
2
contrib/openssl
vendored
@ -1 +1 @@
|
||||
Subproject commit 417f9d2825799769708d99917d0465574c36f79a
|
||||
Subproject commit f7b8721dfc66abb147f24ca07b9c9d1d64f40f71
|
||||
@ -93,7 +93,7 @@ enable_language(ASM)
|
||||
|
||||
if(COMPILER_CLANG)
|
||||
add_definitions(-Wno-unused-command-line-argument)
|
||||
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=lld")
|
||||
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=lld") # only relevant for -DENABLE_OPENSSL_DYNAMIC=1
|
||||
endif()
|
||||
|
||||
if(ARCH_AMD64)
|
||||
|
||||
@ -14,11 +14,14 @@ RUN curl -o krb5-libs-1.10.3-65.el6.x86_64.rpm ftp://ftp.pbone.net/mirror/vault.
|
||||
rpm -Uvh libkadm5-1.10.3-65.el6.x86_64.rpm libss-1.41.12-24.el6.x86_64.rpm krb5-libs-1.10.3-65.el6.x86_64.rpm krb5-workstation-1.10.3-65.el6.x86_64.rpm libcom_err-1.41.12-24.el6.x86_64.rpm && \
|
||||
rm -fr *.rpm
|
||||
|
||||
ADD https://archive.apache.org/dist/commons/daemon/source/commons-daemon-1.0.15-src.tar.gz /tmp/commons-daemon-1.0.15-src.tar.gz
|
||||
|
||||
RUN cd /tmp && \
|
||||
curl http://archive.apache.org/dist/commons/daemon/source/commons-daemon-1.0.15-src.tar.gz -o commons-daemon-1.0.15-src.tar.gz && \
|
||||
tar xzf commons-daemon-1.0.15-src.tar.gz && \
|
||||
cd commons-daemon-1.0.15-src/src/native/unix && \
|
||||
./configure && \
|
||||
make && \
|
||||
cp ./jsvc /usr/local/hadoop-2.7.0/sbin && \
|
||||
[ -e /usr/local/hadoop ] || ln -s ./hadoop-2.7.0 /usr/local/hadoop
|
||||
cd /tmp && \
|
||||
rm -rf commons-daemon-1.0.15-src* && \
|
||||
{ [ -e /usr/local/hadoop ] || ln -s ./hadoop-2.7.0 /usr/local/hadoop; }
|
||||
|
||||
@ -19,7 +19,7 @@ ln -s /usr/share/clickhouse-test/clickhouse-test /usr/bin/clickhouse-test
|
||||
# install test configs
|
||||
/usr/share/clickhouse-test/config/install.sh
|
||||
|
||||
azurite-blob --blobHost 0.0.0.0 --blobPort 10000 --debug /azurite_log &
|
||||
azurite-blob --blobHost 0.0.0.0 --blobPort 10000 --silent --inMemoryPersistence &
|
||||
./setup_minio.sh stateful
|
||||
|
||||
config_logs_export_cluster /etc/clickhouse-server/config.d/system_logs_export.yaml
|
||||
@ -87,7 +87,7 @@ function start()
|
||||
tail -n1000 /var/log/clickhouse-server/clickhouse-server.log
|
||||
break
|
||||
fi
|
||||
timeout 120 service clickhouse-server start
|
||||
timeout 120 sudo -E -u clickhouse /usr/bin/clickhouse-server --config /etc/clickhouse-server/config.xml --daemon --pid-file /var/run/clickhouse-server/clickhouse-server.pid
|
||||
sleep 0.5
|
||||
counter=$((counter + 1))
|
||||
done
|
||||
|
||||
@ -42,12 +42,6 @@ source /utils.lib
|
||||
# install test configs
|
||||
/usr/share/clickhouse-test/config/install.sh
|
||||
|
||||
if [[ -n "$USE_DATABASE_REPLICATED" ]] && [[ "$USE_DATABASE_REPLICATED" -eq 1 ]]; then
|
||||
echo "Azure is disabled"
|
||||
else
|
||||
azurite-blob --blobHost 0.0.0.0 --blobPort 10000 --debug /azurite_log &
|
||||
fi
|
||||
|
||||
./setup_minio.sh stateless
|
||||
./setup_hdfs_minicluster.sh
|
||||
|
||||
@ -97,12 +91,11 @@ if [ "$NUM_TRIES" -gt "1" ]; then
|
||||
export THREAD_FUZZER_pthread_mutex_unlock_AFTER_SLEEP_TIME_US_MAX=10000
|
||||
|
||||
mkdir -p /var/run/clickhouse-server
|
||||
# simplest way to forward env variables to server
|
||||
sudo -E -u clickhouse /usr/bin/clickhouse-server --config /etc/clickhouse-server/config.xml --daemon --pid-file /var/run/clickhouse-server/clickhouse-server.pid
|
||||
else
|
||||
sudo clickhouse start
|
||||
fi
|
||||
|
||||
# simplest way to forward env variables to server
|
||||
sudo -E -u clickhouse /usr/bin/clickhouse-server --config /etc/clickhouse-server/config.xml --daemon --pid-file /var/run/clickhouse-server/clickhouse-server.pid
|
||||
|
||||
if [[ -n "$USE_DATABASE_REPLICATED" ]] && [[ "$USE_DATABASE_REPLICATED" -eq 1 ]]; then
|
||||
sudo sed -i "s|<filesystem_caches_path>/var/lib/clickhouse/filesystem_caches/</filesystem_caches_path>|<filesystem_caches_path>/var/lib/clickhouse/filesystem_caches_1/</filesystem_caches_path>|" /etc/clickhouse-server1/config.d/filesystem_caches_path.xml
|
||||
|
||||
@ -212,6 +205,14 @@ function run_tests()
|
||||
ADDITIONAL_OPTIONS+=('--s3-storage')
|
||||
fi
|
||||
|
||||
if [[ -n "$USE_AZURE_STORAGE_FOR_MERGE_TREE" ]] && [[ "$USE_AZURE_STORAGE_FOR_MERGE_TREE" -eq 1 ]]; then
|
||||
# to disable the same tests
|
||||
ADDITIONAL_OPTIONS+=('--s3-storage')
|
||||
# azurite is slow, but with these two settings it can be super slow
|
||||
ADDITIONAL_OPTIONS+=('--no-random-settings')
|
||||
ADDITIONAL_OPTIONS+=('--no-random-merge-tree-settings')
|
||||
fi
|
||||
|
||||
if [[ -n "$USE_SHARED_CATALOG" ]] && [[ "$USE_SHARED_CATALOG" -eq 1 ]]; then
|
||||
ADDITIONAL_OPTIONS+=('--shared-catalog')
|
||||
fi
|
||||
@ -286,7 +287,7 @@ stop_logs_replication
|
||||
failed_to_save_logs=0
|
||||
for table in query_log zookeeper_log trace_log transactions_info_log metric_log
|
||||
do
|
||||
err=$( { clickhouse-client -q "select * from system.$table format TSVWithNamesAndTypes" | zstd --threads=0 > /test_output/$table.tsv.zst; } 2>&1 )
|
||||
err=$(clickhouse-client -q "select * from system.$table into outfile '/test_output/$table.tsv.gz' format TSVWithNamesAndTypes")
|
||||
echo "$err"
|
||||
[[ "0" != "${#err}" ]] && failed_to_save_logs=1
|
||||
if [[ -n "$USE_DATABASE_REPLICATED" ]] && [[ "$USE_DATABASE_REPLICATED" -eq 1 ]]; then
|
||||
|
||||
@ -279,7 +279,7 @@ function check_logs_for_critical_errors()
|
||||
|
||||
function collect_query_and_trace_logs()
|
||||
{
|
||||
for table in query_log trace_log
|
||||
for table in query_log trace_log metric_log
|
||||
do
|
||||
clickhouse-local --config-file=/etc/clickhouse-server/config.xml --only-system-tables -q "select * from system.$table format TSVWithNamesAndTypes" | zstd --threads=0 > /test_output/$table.tsv.zst ||:
|
||||
done
|
||||
|
||||
@ -52,7 +52,6 @@ export ZOOKEEPER_FAULT_INJECTION=1
|
||||
# available for dump via clickhouse-local
|
||||
configure
|
||||
|
||||
azurite-blob --blobHost 0.0.0.0 --blobPort 10000 --debug /azurite_log &
|
||||
./setup_minio.sh stateless # to have a proper environment
|
||||
|
||||
config_logs_export_cluster /etc/clickhouse-server/config.d/system_logs_export.yaml
|
||||
|
||||
37
docs/changelogs/v23.8.13.25-lts.md
Normal file
37
docs/changelogs/v23.8.13.25-lts.md
Normal file
@ -0,0 +1,37 @@
|
||||
---
|
||||
sidebar_position: 1
|
||||
sidebar_label: 2024
|
||||
---
|
||||
|
||||
# 2024 Changelog
|
||||
|
||||
### ClickHouse release v23.8.13.25-lts (37e034f903e) FIXME as compared to v23.8.12.13-lts (bdbd0d87e5d)
|
||||
|
||||
#### Improvement
|
||||
* Backported in [#61930](https://github.com/ClickHouse/ClickHouse/issues/61930): 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)).
|
||||
|
||||
#### Build/Testing/Packaging Improvement
|
||||
* Backported in [#62007](https://github.com/ClickHouse/ClickHouse/issues/62007): Remove from the Keeper Docker image the volumes at /etc/clickhouse-keeper and /var/log/clickhouse-keeper. [#61683](https://github.com/ClickHouse/ClickHouse/pull/61683) ([Tristan](https://github.com/Tristan971)).
|
||||
|
||||
#### Bug Fix (user-visible misbehavior in an official stable release)
|
||||
|
||||
* Fix REPLACE/MOVE PARTITION with zero-copy replication [#54193](https://github.com/ClickHouse/ClickHouse/pull/54193) ([Alexander Tokmakov](https://github.com/tavplubix)).
|
||||
* Fix ATTACH query with external ON CLUSTER [#61365](https://github.com/ClickHouse/ClickHouse/pull/61365) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
* Cancel merges before removing moved parts [#61610](https://github.com/ClickHouse/ClickHouse/pull/61610) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
|
||||
* Mark CANNOT_PARSE_ESCAPE_SEQUENCE error as parse error to be able to skip it in row input formats [#61883](https://github.com/ClickHouse/ClickHouse/pull/61883) ([Kruglov Pavel](https://github.com/Avogar)).
|
||||
* Try to fix segfault in Hive engine [#62578](https://github.com/ClickHouse/ClickHouse/pull/62578) ([Nikolay Degterinsky](https://github.com/evillique)).
|
||||
|
||||
#### CI Fix or Improvement (changelog entry is not required)
|
||||
|
||||
* Backported in [#62201](https://github.com/ClickHouse/ClickHouse/issues/62201):. [#62190](https://github.com/ClickHouse/ClickHouse/pull/62190) ([Konstantin Bogdanov](https://github.com/thevar1able)).
|
||||
* Backported in [#62796](https://github.com/ClickHouse/ClickHouse/issues/62796): We won't fail the job when GH fails to retrieve the job ID and URLs. [#62651](https://github.com/ClickHouse/ClickHouse/pull/62651) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
|
||||
* Backported in [#62968](https://github.com/ClickHouse/ClickHouse/issues/62968):. [#62932](https://github.com/ClickHouse/ClickHouse/pull/62932) ([Robert Schulze](https://github.com/rschu1ze)).
|
||||
|
||||
#### NO CL CATEGORY
|
||||
|
||||
* Backported in [#62585](https://github.com/ClickHouse/ClickHouse/issues/62585):. [#60078](https://github.com/ClickHouse/ClickHouse/pull/60078) ([Maksim Kita](https://github.com/kitaisreal)).
|
||||
|
||||
#### NOT FOR CHANGELOG / INSIGNIFICANT
|
||||
|
||||
* Throw on query timeout in ZooKeeperRetries [#60922](https://github.com/ClickHouse/ClickHouse/pull/60922) ([Antonio Andelic](https://github.com/antonio2368)).
|
||||
|
||||
@ -4,7 +4,7 @@ sidebar_position: 30
|
||||
sidebar_label: Replicated
|
||||
---
|
||||
|
||||
# [experimental] Replicated
|
||||
# Replicated
|
||||
|
||||
The engine is based on the [Atomic](../../engines/database-engines/atomic.md) engine. It supports replication of metadata via DDL log being written to ZooKeeper and executed on all of the replicas for a given database.
|
||||
|
||||
|
||||
@ -8,6 +8,8 @@ sidebar_label: HDFS
|
||||
|
||||
This engine provides integration with the [Apache Hadoop](https://en.wikipedia.org/wiki/Apache_Hadoop) ecosystem by allowing to manage data on [HDFS](https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsDesign.html) via ClickHouse. This engine is similar to the [File](../../../engines/table-engines/special/file.md#table_engines-file) and [URL](../../../engines/table-engines/special/url.md#table_engines-url) engines, but provides Hadoop-specific features.
|
||||
|
||||
This feature is not supported by ClickHouse engineers, and it is known to have a sketchy quality. In case of any problems, fix them yourself and submit a pull request.
|
||||
|
||||
## Usage {#usage}
|
||||
|
||||
``` sql
|
||||
|
||||
@ -287,9 +287,9 @@ The number of columns in the primary key is not explicitly limited. Depending on
|
||||
|
||||
A long primary key will negatively affect the insert performance and memory consumption, but extra columns in the primary key do not affect ClickHouse performance during `SELECT` queries.
|
||||
|
||||
You can create a table without a primary key using the `ORDER BY tuple()` syntax. In this case, ClickHouse stores data in the order of inserting. If you want to save data order when inserting data by `INSERT ... SELECT` queries, set [max_insert_threads = 1](/docs/en/operations/settings/settings.md/#settings-max-insert-threads).
|
||||
You can create a table without a primary key using the `ORDER BY tuple()` syntax. In this case, ClickHouse stores data in the order of inserting. If you want to save data order when inserting data by `INSERT ... SELECT` queries, set [max_insert_threads = 1](/docs/en/operations/settings/settings.md/#max-insert-threads).
|
||||
|
||||
To select data in the initial order, use [single-threaded](/docs/en/operations/settings/settings.md/#settings-max_threads) `SELECT` queries.
|
||||
To select data in the initial order, use [single-threaded](/docs/en/operations/settings/settings.md/#max_threads) `SELECT` queries.
|
||||
|
||||
### Choosing a Primary Key that Differs from the Sorting Key {#choosing-a-primary-key-that-differs-from-the-sorting-key}
|
||||
|
||||
@ -344,7 +344,7 @@ In the example below, the index can’t be used.
|
||||
SELECT count() FROM table WHERE CounterID = 34 OR URL LIKE '%upyachka%'
|
||||
```
|
||||
|
||||
To check whether ClickHouse can use the index when running a query, use the settings [force_index_by_date](/docs/en/operations/settings/settings.md/#settings-force_index_by_date) and [force_primary_key](/docs/en/operations/settings/settings.md/#force-primary-key).
|
||||
To check whether ClickHouse can use the index when running a query, use the settings [force_index_by_date](/docs/en/operations/settings/settings.md/#force_index_by_date) and [force_primary_key](/docs/en/operations/settings/settings.md/#force-primary-key).
|
||||
|
||||
The key for partitioning by month allows reading only those data blocks which contain dates from the proper range. In this case, the data block may contain data for many dates (up to an entire month). Within a block, data is sorted by primary key, which might not contain the date as the first column. Because of this, using a query with only a date condition that does not specify the primary key prefix will cause more data to be read than for a single date.
|
||||
|
||||
@ -769,6 +769,7 @@ In addition to local block devices, ClickHouse supports these storage types:
|
||||
- [`web` for read-only from web](#web-storage)
|
||||
- [`cache` for local caching](/docs/en/operations/storing-data.md/#using-local-cache)
|
||||
- [`s3_plain` for backups to S3](/docs/en/operations/backup#backuprestore-using-an-s3-disk)
|
||||
- [`s3_plain_rewritable` for immutable, non-replicated tables in S3](/docs/en/operations/storing-data.md#s3-plain-rewritable-storage)
|
||||
|
||||
## Using Multiple Block Devices for Data Storage {#table_engine-mergetree-multiple-volumes}
|
||||
|
||||
|
||||
@ -113,7 +113,7 @@ You can specify any existing ZooKeeper cluster and the system will use a directo
|
||||
|
||||
If ZooKeeper is not set in the config file, you can’t create replicated tables, and any existing replicated tables will be read-only.
|
||||
|
||||
ZooKeeper is not used in `SELECT` queries because replication does not affect the performance of `SELECT` and queries run just as fast as they do for non-replicated tables. When querying distributed replicated tables, ClickHouse behavior is controlled by the settings [max_replica_delay_for_distributed_queries](/docs/en/operations/settings/settings.md/#settings-max_replica_delay_for_distributed_queries) and [fallback_to_stale_replicas_for_distributed_queries](/docs/en/operations/settings/settings.md/#settings-fallback_to_stale_replicas_for_distributed_queries).
|
||||
ZooKeeper is not used in `SELECT` queries because replication does not affect the performance of `SELECT` and queries run just as fast as they do for non-replicated tables. When querying distributed replicated tables, ClickHouse behavior is controlled by the settings [max_replica_delay_for_distributed_queries](/docs/en/operations/settings/settings.md/#max_replica_delay_for_distributed_queries) and [fallback_to_stale_replicas_for_distributed_queries](/docs/en/operations/settings/settings.md/#fallback_to_stale_replicas_for_distributed_queries).
|
||||
|
||||
For each `INSERT` query, approximately ten entries are added to ZooKeeper through several transactions. (To be more precise, this is for each inserted block of data; an INSERT query contains one block or one block per `max_insert_block_size = 1048576` rows.) This leads to slightly longer latencies for `INSERT` compared to non-replicated tables. But if you follow the recommendations to insert data in batches of no more than one `INSERT` per second, it does not create any problems. The entire ClickHouse cluster used for coordinating one ZooKeeper cluster has a total of several hundred `INSERTs` per second. The throughput on data inserts (the number of rows per second) is just as high as for non-replicated data.
|
||||
|
||||
|
||||
@ -83,7 +83,7 @@ When creating a table, the following settings are applied:
|
||||
|
||||
#### join_any_take_last_row
|
||||
|
||||
[join_any_take_last_row](/docs/en/operations/settings/settings.md/#settings-join_any_take_last_row)
|
||||
[join_any_take_last_row](/docs/en/operations/settings/settings.md/#join_any_take_last_row)
|
||||
#### join_use_nulls
|
||||
|
||||
#### persistent
|
||||
|
||||
@ -10,7 +10,8 @@ The RecipeNLG dataset is available for download [here](https://recipenlg.cs.put.
|
||||
|
||||
1. Go to the download page [https://recipenlg.cs.put.poznan.pl/dataset](https://recipenlg.cs.put.poznan.pl/dataset).
|
||||
1. Accept Terms and Conditions and download zip file.
|
||||
1. Unpack the zip file with `unzip`. You will get the `full_dataset.csv` file.
|
||||
1. Option: Using the `md5sum dataset.zip` to validate the zip file and it should be equal to `3a168dfd0912bb034225619b3586ce76`.
|
||||
1. Unpack the zip file with `unzip dataset.zip`. You will get the `full_dataset.csv` file in the `dataset` directory.
|
||||
|
||||
## Create a Table
|
||||
|
||||
@ -72,7 +73,7 @@ Result:
|
||||
|
||||
``` text
|
||||
┌─count()─┐
|
||||
│ 2231141 │
|
||||
│ 2231142 │
|
||||
└─────────┘
|
||||
```
|
||||
|
||||
@ -115,7 +116,7 @@ Result:
|
||||
│ egg │ 160507 │
|
||||
│ baking powder │ 148277 │
|
||||
│ lemon juice │ 146414 │
|
||||
│ Salt │ 122557 │
|
||||
│ Salt │ 122558 │
|
||||
│ cinnamon │ 117927 │
|
||||
│ sour cream │ 116682 │
|
||||
│ cream cheese │ 114423 │
|
||||
|
||||
@ -327,7 +327,9 @@ Use buffering to avoid situations where a query processing error occurred after
|
||||
|
||||
## Setting a role with query parameters {#setting-role-with-query-parameters}
|
||||
|
||||
In certain scenarios, it might be required to set the granted role first, before executing the statement itself.
|
||||
This is a new feature added in ClickHouse 24.4.
|
||||
|
||||
In specific scenarios, setting the granted role first might be required before executing the statement itself.
|
||||
However, it is not possible to send `SET ROLE` and the statement together, as multi-statements are not allowed:
|
||||
|
||||
```
|
||||
@ -346,7 +348,7 @@ To overcome this limitation, you could use the `role` query parameter instead:
|
||||
curl -sS "http://localhost:8123?role=my_role" --data-binary "SELECT * FROM my_table;"
|
||||
```
|
||||
|
||||
This will be an equivalent of executing `SET ROLE my_role` before the statement.
|
||||
This will be the equivalent of executing `SET ROLE my_role` before the statement.
|
||||
|
||||
Additionally, it is possible to specify multiple `role` query parameters:
|
||||
|
||||
|
||||
@ -76,7 +76,7 @@ ClickHouse, Inc. does **not** maintain the tools and libraries listed below and
|
||||
- [clickhouse-maxmind-geoip](https://github.com/AlexeyKupershtokh/clickhouse-maxmind-geoip)
|
||||
- AutoML
|
||||
- [MindsDB](https://mindsdb.com/)
|
||||
- [MindsDB](https://github.com/mindsdb/mindsdb) - Predictive AI layer for ClickHouse database.
|
||||
- [MindsDB](https://github.com/mindsdb/mindsdb) - Integrates with ClickHouse, making data from ClickHouse accessible to a diverse range of AI/ML models.
|
||||
|
||||
## Programming Language Ecosystems {#programming-language-ecosystems}
|
||||
|
||||
|
||||
@ -7,6 +7,8 @@ toc_max_heading_level: 2
|
||||
|
||||
# Core Settings
|
||||
|
||||
All below settings are also available in table [system.settings](/docs/en/operations/system-tables/settings).
|
||||
|
||||
## additional_table_filters
|
||||
|
||||
An additional filter expression that is applied after reading
|
||||
@ -3931,19 +3933,6 @@ For example, `avg(if(cond, col, null))` can be rewritten to `avgOrNullIf(cond, c
|
||||
Supported only with experimental analyzer (`allow_experimental_analyzer = 1`).
|
||||
:::
|
||||
|
||||
## allow_experimental_database_replicated {#allow_experimental_database_replicated}
|
||||
|
||||
Enables to create databases with [Replicated](../../engines/database-engines/replicated.md) engine.
|
||||
|
||||
Possible values:
|
||||
|
||||
- 0 — Disabled.
|
||||
- 1 — Enabled.
|
||||
|
||||
Default value: `0`.
|
||||
|
||||
Cloud default value: `1`.
|
||||
|
||||
## database_replicated_initial_query_timeout_sec {#database_replicated_initial_query_timeout_sec}
|
||||
|
||||
Sets how long initial DDL query should wait for Replicated database to process previous DDL queue entries in seconds.
|
||||
|
||||
@ -28,7 +28,7 @@ Starting from 24.1 clickhouse version, it is possible to use a new configuration
|
||||
It requires to specify:
|
||||
1. `type` equal to `object_storage`
|
||||
2. `object_storage_type`, equal to one of `s3`, `azure_blob_storage` (or just `azure` from `24.3`), `hdfs`, `local_blob_storage` (or just `local` from `24.3`), `web`.
|
||||
Optionally, `metadata_type` can be specified (it is equal to `local` by default), but it can also be set to `plain`, `web`.
|
||||
Optionally, `metadata_type` can be specified (it is equal to `local` by default), but it can also be set to `plain`, `web` and, starting from `24.4`, `plain_rewritable`.
|
||||
Usage of `plain` metadata type is described in [plain storage section](/docs/en/operations/storing-data.md/#storing-data-on-webserver), `web` metadata type can be used only with `web` object storage type, `local` metadata type stores metadata files locally (each metadata files contains mapping to files in object storage and some additional meta information about them).
|
||||
|
||||
E.g. configuration option
|
||||
@ -341,6 +341,36 @@ Configuration:
|
||||
</s3_plain>
|
||||
```
|
||||
|
||||
### Using S3 Plain Rewritable Storage {#s3-plain-rewritable-storage}
|
||||
A new disk type `s3_plain_rewritable` was introduced in `24.4`.
|
||||
Similar to the `s3_plain` disk type, it does not require additional storage for metadata files; instead, metadata is stored in S3.
|
||||
Unlike `s3_plain` disk type, `s3_plain_rewritable` allows executing merges and supports INSERT operations.
|
||||
[Mutations](/docs/en/sql-reference/statements/alter#mutations) and replication of tables are not supported.
|
||||
|
||||
A use case for this disk type are non-replicated `MergeTree` tables. Although the `s3` disk type is suitable for non-replicated
|
||||
MergeTree tables, you may opt for the `s3_plain_rewritable` disk type if you do not require local metadata for the table and are
|
||||
willing to accept a limited set of operations. This could be useful, for example, for system tables.
|
||||
|
||||
Configuration:
|
||||
``` xml
|
||||
<s3_plain_rewritable>
|
||||
<type>s3_plain_rewritable</type>
|
||||
<endpoint>https://s3.eu-west-1.amazonaws.com/clickhouse-eu-west-1.clickhouse.com/data/</endpoint>
|
||||
<use_environment_credentials>1</use_environment_credentials>
|
||||
</s3_plain_rewritable>
|
||||
```
|
||||
|
||||
is equal to
|
||||
``` xml
|
||||
<s3_plain_rewritable>
|
||||
<type>object_storage</type>
|
||||
<object_storage_type>s3</object_storage_type>
|
||||
<metadata_type>plain_rewritable</metadata_type>
|
||||
<endpoint>https://s3.eu-west-1.amazonaws.com/clickhouse-eu-west-1.clickhouse.com/data/</endpoint>
|
||||
<use_environment_credentials>1</use_environment_credentials>
|
||||
</s3_plain_rewritable>
|
||||
```
|
||||
|
||||
### Using Azure Blob Storage {#azure-blob-storage}
|
||||
|
||||
`MergeTree` family table engines can store data to [Azure Blob Storage](https://azure.microsoft.com/en-us/services/storage/blobs/) using a disk with type `azure_blob_storage`.
|
||||
|
||||
@ -111,7 +111,7 @@ On newer Linux kernels transparent huge pages are alright.
|
||||
$ echo 'madvise' | sudo tee /sys/kernel/mm/transparent_hugepage/enabled
|
||||
```
|
||||
|
||||
If you want to modify the transparent huge pages setting permanently, editing the `/etc/default/grub` to add the `transparent_hugepage=never` to the `GRUB_CMDLINE_LINUX_DEFAULT` option:
|
||||
If you want to modify the transparent huge pages setting permanently, editing the `/etc/default/grub` to add the `transparent_hugepage=madvise` to the `GRUB_CMDLINE_LINUX_DEFAULT` option:
|
||||
|
||||
```bash
|
||||
$ GRUB_CMDLINE_LINUX_DEFAULT="transparent_hugepage=madvise ..."
|
||||
|
||||
@ -505,9 +505,117 @@ 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)
|
||||
## sumMapFiltered
|
||||
|
||||
Same behavior as [sumMap](../../sql-reference/aggregate-functions/reference/summap.md#agg_functions-summap) except that an array of keys is passed as a parameter. This can be especially useful when working with a high cardinality of keys.
|
||||
This function behaves the same as [sumMap](../../sql-reference/aggregate-functions/reference/summap.md#agg_functions-summap) except that it also accepts an array of keys to filter with as a parameter. This can be especially useful when working with a high cardinality of keys.
|
||||
|
||||
**Syntax**
|
||||
|
||||
`sumMapFiltered(keys_to_keep)(keys, values)`
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `keys_to_keep`: [Array](../data-types/array.md) of keys to filter with.
|
||||
- `keys`: [Array](../data-types/array.md) of keys.
|
||||
- `values`: [Array](../data-types/array.md) of values.
|
||||
|
||||
**Returned Value**
|
||||
|
||||
- Returns a tuple of two arrays: keys in sorted order, and values summed for the corresponding keys.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
CREATE TABLE sum_map
|
||||
(
|
||||
`date` Date,
|
||||
`timeslot` DateTime,
|
||||
`statusMap` Nested(status UInt16, requests UInt64)
|
||||
)
|
||||
ENGINE = Log
|
||||
|
||||
INSERT INTO sum_map VALUES
|
||||
('2000-01-01', '2000-01-01 00:00:00', [1, 2, 3], [10, 10, 10]),
|
||||
('2000-01-01', '2000-01-01 00:00:00', [3, 4, 5], [10, 10, 10]),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [4, 5, 6], [10, 10, 10]),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [6, 7, 8], [10, 10, 10]);
|
||||
```
|
||||
|
||||
```sql
|
||||
SELECT sumMapFiltered([1, 4, 8])(statusMap.status, statusMap.requests) FROM sum_map;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─sumMapFiltered([1, 4, 8])(statusMap.status, statusMap.requests)─┐
|
||||
1. │ ([1,4,8],[10,20,10]) │
|
||||
└─────────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
## sumMapFilteredWithOverflow
|
||||
|
||||
This function behaves the same as [sumMap](../../sql-reference/aggregate-functions/reference/summap.md#agg_functions-summap) except that it also accepts an array of keys to filter with as a parameter. This can be especially useful when working with a high cardinality of keys. It differs from the [sumMapFiltered](#summapfiltered) function in that it does summation with overflow - i.e. returns the same data type for the summation as the argument data type.
|
||||
|
||||
**Syntax**
|
||||
|
||||
`sumMapFilteredWithOverflow(keys_to_keep)(keys, values)`
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `keys_to_keep`: [Array](../data-types/array.md) of keys to filter with.
|
||||
- `keys`: [Array](../data-types/array.md) of keys.
|
||||
- `values`: [Array](../data-types/array.md) of values.
|
||||
|
||||
**Returned Value**
|
||||
|
||||
- Returns a tuple of two arrays: keys in sorted order, and values summed for the corresponding keys.
|
||||
|
||||
**Example**
|
||||
|
||||
In this example we create a table `sum_map`, insert some data into it and then use both `sumMapFilteredWithOverflow` and `sumMapFiltered` and the `toTypeName` function for comparison of the result. Where `requests` was of type `UInt8` in the created table, `sumMapFiltered` has promoted the type of the summed values to `UInt64` to avoid overflow whereas `sumMapFilteredWithOverflow` has kept the type as `UInt8` which is not large enough to store the result - i.e. overflow has occurred.
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
CREATE TABLE sum_map
|
||||
(
|
||||
`date` Date,
|
||||
`timeslot` DateTime,
|
||||
`statusMap` Nested(status UInt8, requests UInt8)
|
||||
)
|
||||
ENGINE = Log
|
||||
|
||||
INSERT INTO sum_map VALUES
|
||||
('2000-01-01', '2000-01-01 00:00:00', [1, 2, 3], [10, 10, 10]),
|
||||
('2000-01-01', '2000-01-01 00:00:00', [3, 4, 5], [10, 10, 10]),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [4, 5, 6], [10, 10, 10]),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [6, 7, 8], [10, 10, 10]);
|
||||
```
|
||||
|
||||
```sql
|
||||
SELECT sumMapFilteredWithOverflow([1, 4, 8])(statusMap.status, statusMap.requests) as summap_overflow, toTypeName(summap_overflow) FROM sum_map;
|
||||
```
|
||||
|
||||
```sql
|
||||
SELECT sumMapFiltered([1, 4, 8])(statusMap.status, statusMap.requests) as summap, toTypeName(summap) FROM sum_map;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─sum──────────────────┬─toTypeName(sum)───────────────────┐
|
||||
1. │ ([1,4,8],[10,20,10]) │ Tuple(Array(UInt8), Array(UInt8)) │
|
||||
└──────────────────────┴───────────────────────────────────┘
|
||||
```
|
||||
|
||||
```response
|
||||
┌─summap───────────────┬─toTypeName(summap)─────────────────┐
|
||||
1. │ ([1,4,8],[10,20,10]) │ Tuple(Array(UInt8), Array(UInt64)) │
|
||||
└──────────────────────┴────────────────────────────────────┘
|
||||
```
|
||||
|
||||
## sequenceNextNode
|
||||
|
||||
|
||||
@ -16,7 +16,9 @@ Standard aggregate functions:
|
||||
- [avg](/docs/en/sql-reference/aggregate-functions/reference/avg.md)
|
||||
- [any](/docs/en/sql-reference/aggregate-functions/reference/any.md)
|
||||
- [stddevPop](/docs/en/sql-reference/aggregate-functions/reference/stddevpop.md)
|
||||
- [stddevPopStable](/docs/en/sql-reference/aggregate-functions/reference/stddevpopstable.md)
|
||||
- [stddevSamp](/docs/en/sql-reference/aggregate-functions/reference/stddevsamp.md)
|
||||
- [stddevSampStable](/docs/en/sql-reference/aggregate-functions/reference/stddevsampstable.md)
|
||||
- [varPop](/docs/en/sql-reference/aggregate-functions/reference/varpop.md)
|
||||
- [varSamp](/docs/en/sql-reference/aggregate-functions/reference/varsamp.md)
|
||||
- [corr](./corr.md)
|
||||
@ -65,6 +67,9 @@ ClickHouse-specific aggregate functions:
|
||||
- [groupBitmapXor](/docs/en/sql-reference/aggregate-functions/reference/groupbitmapxor.md)
|
||||
- [sumWithOverflow](/docs/en/sql-reference/aggregate-functions/reference/sumwithoverflow.md)
|
||||
- [sumMap](/docs/en/sql-reference/aggregate-functions/reference/summap.md)
|
||||
- [sumMapWithOverflow](/docs/en/sql-reference/aggregate-functions/reference/summapwithoverflow.md)
|
||||
- [sumMapFiltered](/docs/en/sql-reference/aggregate-functions/parametric-functions.md/#summapfiltered)
|
||||
- [sumMapFilteredWithOverflow](/docs/en/sql-reference/aggregate-functions/parametric-functions.md/#summapfilteredwithoverflow)
|
||||
- [minMap](/docs/en/sql-reference/aggregate-functions/reference/minmap.md)
|
||||
- [maxMap](/docs/en/sql-reference/aggregate-functions/reference/maxmap.md)
|
||||
- [skewSamp](/docs/en/sql-reference/aggregate-functions/reference/skewsamp.md)
|
||||
|
||||
@ -7,10 +7,50 @@ sidebar_position: 30
|
||||
|
||||
The result is equal to the square root of [varPop](../../../sql-reference/aggregate-functions/reference/varpop.md).
|
||||
|
||||
Alias:
|
||||
- `STD`
|
||||
- `STDDEV_POP`
|
||||
Aliases: `STD`, `STDDEV_POP`.
|
||||
|
||||
:::note
|
||||
This function uses a numerically unstable algorithm. If you need [numerical stability](https://en.wikipedia.org/wiki/Numerical_stability) in calculations, use the `stddevPopStable` function. It works slower but provides a lower computational error.
|
||||
:::
|
||||
This function uses a numerically unstable algorithm. If you need [numerical stability](https://en.wikipedia.org/wiki/Numerical_stability) in calculations, use the [`stddevPopStable`](../reference/stddevpopstable.md) function. It works slower but provides a lower computational error.
|
||||
:::
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
stddevPop(x)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `x`: Population of values to find the standard deviation of. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
Square root of standard deviation of `x`. [Float64](../../data-types/float.md).
|
||||
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
DROP TABLE IF EXISTS test_data;
|
||||
CREATE TABLE test_data
|
||||
(
|
||||
population UInt8,
|
||||
)
|
||||
ENGINE = Log;
|
||||
|
||||
INSERT INTO test_data VALUES (3),(3),(3),(4),(4),(5),(5),(7),(11),(15);
|
||||
|
||||
SELECT
|
||||
stddevPop(population) AS stddev
|
||||
FROM test_data;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌────────────stddev─┐
|
||||
│ 3.794733192202055 │
|
||||
└───────────────────┘
|
||||
```
|
||||
|
||||
@ -0,0 +1,49 @@
|
||||
---
|
||||
slug: /en/sql-reference/aggregate-functions/reference/stddevpopstable
|
||||
sidebar_position: 30
|
||||
---
|
||||
|
||||
# stddevPopStable
|
||||
|
||||
The result is equal to the square root of [varPop](../../../sql-reference/aggregate-functions/reference/varpop.md). Unlike [`stddevPop`](../reference/stddevpop.md), this function uses a numerically stable algorithm. It works slower but provides a lower computational error.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
stddevPopStable(x)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `x`: Population of values to find the standard deviation of. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
Square root of standard deviation of `x`. [Float64](../../data-types/float.md).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
DROP TABLE IF EXISTS test_data;
|
||||
CREATE TABLE test_data
|
||||
(
|
||||
population Float64,
|
||||
)
|
||||
ENGINE = Log;
|
||||
|
||||
INSERT INTO test_data SELECT randUniform(5.5, 10) FROM numbers(1000000)
|
||||
|
||||
SELECT
|
||||
stddevPopStable(population) AS stddev
|
||||
FROM test_data;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─────────────stddev─┐
|
||||
│ 1.2999977786592576 │
|
||||
└────────────────────┘
|
||||
```
|
||||
@ -10,5 +10,46 @@ The result is equal to the square root of [varSamp](../../../sql-reference/aggre
|
||||
Alias: `STDDEV_SAMP`.
|
||||
|
||||
:::note
|
||||
This function uses a numerically unstable algorithm. If you need [numerical stability](https://en.wikipedia.org/wiki/Numerical_stability) in calculations, use the `stddevSampStable` function. It works slower but provides a lower computational error.
|
||||
:::
|
||||
This function uses a numerically unstable algorithm. If you need [numerical stability](https://en.wikipedia.org/wiki/Numerical_stability) in calculations, use the [`stddevSampStable`](../reference/stddevsampstable.md) function. It works slower but provides a lower computational error.
|
||||
:::
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
stddevSamp(x)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `x`: Values for which to find the square root of sample variance. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
Square root of sample variance of `x`. [Float64](../../data-types/float.md).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
DROP TABLE IF EXISTS test_data;
|
||||
CREATE TABLE test_data
|
||||
(
|
||||
population UInt8,
|
||||
)
|
||||
ENGINE = Log;
|
||||
|
||||
INSERT INTO test_data VALUES (3),(3),(3),(4),(4),(5),(5),(7),(11),(15);
|
||||
|
||||
SELECT
|
||||
stddevSamp(population)
|
||||
FROM test_data;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─stddevSamp(population)─┐
|
||||
│ 4 │
|
||||
└────────────────────────┘
|
||||
```
|
||||
@ -0,0 +1,49 @@
|
||||
---
|
||||
slug: /en/sql-reference/aggregate-functions/reference/stddevsampstable
|
||||
sidebar_position: 31
|
||||
---
|
||||
|
||||
# stddevSampStable
|
||||
|
||||
The result is equal to the square root of [varSamp](../../../sql-reference/aggregate-functions/reference/varsamp.md). Unlike [`stddevSamp`](../reference/stddevsamp.md) This function uses a numerically stable algorithm. It works slower but provides a lower computational error.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
stddevSampStable(x)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `x`: Values for which to find the square root of sample variance. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
Square root of sample variance of `x`. [Float64](../../data-types/float.md).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
DROP TABLE IF EXISTS test_data;
|
||||
CREATE TABLE test_data
|
||||
(
|
||||
population UInt8,
|
||||
)
|
||||
ENGINE = Log;
|
||||
|
||||
INSERT INTO test_data VALUES (3),(3),(3),(4),(4),(5),(5),(7),(11),(15);
|
||||
|
||||
SELECT
|
||||
stddevSampStable(population)
|
||||
FROM test_data;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─stddevSampStable(population)─┐
|
||||
│ 4 │
|
||||
└──────────────────────────────┘
|
||||
```
|
||||
@ -7,6 +7,56 @@ sidebar_position: 4
|
||||
|
||||
Calculates the sum. Only works for numbers.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
sum(num)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
- `num`: Column of numeric values. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- The sum of the values. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Example**
|
||||
|
||||
First we create a table `employees` and insert some fictional employee data into it.
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
CREATE TABLE employees
|
||||
(
|
||||
`id` UInt32,
|
||||
`name` String,
|
||||
`salary` UInt32
|
||||
)
|
||||
ENGINE = Log
|
||||
```
|
||||
|
||||
```sql
|
||||
INSERT INTO employees VALUES
|
||||
(87432, 'John Smith', 45680),
|
||||
(59018, 'Jane Smith', 72350),
|
||||
(20376, 'Ivan Ivanovich', 58900),
|
||||
(71245, 'Anastasia Ivanovna', 89210);
|
||||
```
|
||||
|
||||
We query for the total amount of the employee salaries using the `sum` function.
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT sum(salary) FROM employees;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
|
||||
```response
|
||||
┌─sum(salary)─┐
|
||||
1. │ 266140 │
|
||||
└─────────────┘
|
||||
```
|
||||
|
||||
@ -5,21 +5,35 @@ sidebar_position: 141
|
||||
|
||||
# sumMap
|
||||
|
||||
Syntax: `sumMap(key <Array>, value <Array>)` [Array type](../../data-types/array.md) or `sumMap(Tuple(key <Array>, value <Array>))` [Tuple type](../../data-types/tuple.md).
|
||||
Totals a `value` array according to the keys specified in the `key` array. Returns a tuple of two arrays: keys in sorted order, and values summed for the corresponding keys without overflow.
|
||||
|
||||
Arguments:
|
||||
**Syntax**
|
||||
|
||||
- `sumMap(key <Array>, value <Array>)` [Array type](../../data-types/array.md).
|
||||
- `sumMap(Tuple(key <Array>, value <Array>))` [Tuple type](../../data-types/tuple.md).
|
||||
|
||||
Alias: `sumMappedArrays`.
|
||||
|
||||
Totals the `value` array according to the keys specified in the `key` array.
|
||||
**Arguments**
|
||||
|
||||
Passing tuple of keys and values arrays is a synonym to passing two arrays of keys and values.
|
||||
- `key`: [Array](../../data-types/array.md) of keys.
|
||||
- `value`: [Array](../../data-types/array.md) of values.
|
||||
|
||||
Passing a tuple of key and value arrays is a synonym to passing separately an array of keys and an array of values.
|
||||
|
||||
:::note
|
||||
The number of elements in `key` and `value` must be the same for each row that is totaled.
|
||||
:::
|
||||
|
||||
Returns a tuple of two arrays: keys in sorted order, and values summed for the corresponding keys.
|
||||
**Returned Value**
|
||||
|
||||
Example:
|
||||
- Returns a tuple of two arrays: keys in sorted order, and values summed for the corresponding keys.
|
||||
|
||||
**Example**
|
||||
|
||||
First we create a table called `sum_map`, and insert some data into it. Arrays of keys and values are stored separately as a column called `statusMap` of [Nested](../../data-types/nested-data-structures/index.md) type, and together as a column called `statusMapTuple` of [tuple](../../data-types/tuple.md) type to illustrate the use of the two different syntaxes of this function described above.
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
CREATE TABLE sum_map(
|
||||
@ -31,13 +45,20 @@ CREATE TABLE sum_map(
|
||||
),
|
||||
statusMapTuple Tuple(Array(Int32), Array(Int32))
|
||||
) ENGINE = Log;
|
||||
|
||||
```
|
||||
```sql
|
||||
INSERT INTO sum_map VALUES
|
||||
('2000-01-01', '2000-01-01 00:00:00', [1, 2, 3], [10, 10, 10], ([1, 2, 3], [10, 10, 10])),
|
||||
('2000-01-01', '2000-01-01 00:00:00', [3, 4, 5], [10, 10, 10], ([3, 4, 5], [10, 10, 10])),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [4, 5, 6], [10, 10, 10], ([4, 5, 6], [10, 10, 10])),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [6, 7, 8], [10, 10, 10], ([6, 7, 8], [10, 10, 10]));
|
||||
```
|
||||
|
||||
Next, we query the table using the `sumMap` function, making use of both array and tuple type syntaxes:
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT
|
||||
timeslot,
|
||||
sumMap(statusMap.status, statusMap.requests),
|
||||
@ -46,6 +67,8 @@ FROM sum_map
|
||||
GROUP BY timeslot
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌────────────timeslot─┬─sumMap(statusMap.status, statusMap.requests)─┬─sumMap(statusMapTuple)─────────┐
|
||||
│ 2000-01-01 00:00:00 │ ([1,2,3,4,5],[10,10,20,10,10]) │ ([1,2,3,4,5],[10,10,20,10,10]) │
|
||||
@ -54,5 +77,6 @@ GROUP BY timeslot
|
||||
```
|
||||
|
||||
**See Also**
|
||||
|
||||
- [-Map combinator for Map datatype](../combinators.md#-map)
|
||||
|
||||
- [Map combinator for Map datatype](../combinators.md#-map)
|
||||
- [sumMapWithOverflow](../reference/summapwithoverflow.md)
|
||||
|
||||
@ -0,0 +1,92 @@
|
||||
---
|
||||
slug: /en/sql-reference/aggregate-functions/reference/summapwithoverflow
|
||||
sidebar_position: 141
|
||||
---
|
||||
|
||||
# sumMapWithOverflow
|
||||
|
||||
Totals a `value` array according to the keys specified in the `key` array. Returns a tuple of two arrays: keys in sorted order, and values summed for the corresponding keys.
|
||||
It differs from the [sumMap](../reference/summap.md) function in that it does summation with overflow - i.e. returns the same data type for the summation as the argument data type.
|
||||
|
||||
**Syntax**
|
||||
|
||||
- `sumMapWithOverflow(key <Array>, value <Array>)` [Array type](../../data-types/array.md).
|
||||
- `sumMapWithOverflow(Tuple(key <Array>, value <Array>))` [Tuple type](../../data-types/tuple.md).
|
||||
|
||||
**Arguments**
|
||||
|
||||
- `key`: [Array](../../data-types/array.md) of keys.
|
||||
- `value`: [Array](../../data-types/array.md) of values.
|
||||
|
||||
Passing a tuple of key and value arrays is a synonym to passing separately an array of keys and an array of values.
|
||||
|
||||
:::note
|
||||
The number of elements in `key` and `value` must be the same for each row that is totaled.
|
||||
:::
|
||||
|
||||
**Returned Value**
|
||||
|
||||
- Returns a tuple of two arrays: keys in sorted order, and values summed for the corresponding keys.
|
||||
|
||||
**Example**
|
||||
|
||||
First we create a table called `sum_map`, and insert some data into it. Arrays of keys and values are stored separately as a column called `statusMap` of [Nested](../../data-types/nested-data-structures/index.md) type, and together as a column called `statusMapTuple` of [tuple](../../data-types/tuple.md) type to illustrate the use of the two different syntaxes of this function described above.
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
CREATE TABLE sum_map(
|
||||
date Date,
|
||||
timeslot DateTime,
|
||||
statusMap Nested(
|
||||
status UInt8,
|
||||
requests UInt8
|
||||
),
|
||||
statusMapTuple Tuple(Array(Int8), Array(Int8))
|
||||
) ENGINE = Log;
|
||||
```
|
||||
```sql
|
||||
INSERT INTO sum_map VALUES
|
||||
('2000-01-01', '2000-01-01 00:00:00', [1, 2, 3], [10, 10, 10], ([1, 2, 3], [10, 10, 10])),
|
||||
('2000-01-01', '2000-01-01 00:00:00', [3, 4, 5], [10, 10, 10], ([3, 4, 5], [10, 10, 10])),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [4, 5, 6], [10, 10, 10], ([4, 5, 6], [10, 10, 10])),
|
||||
('2000-01-01', '2000-01-01 00:01:00', [6, 7, 8], [10, 10, 10], ([6, 7, 8], [10, 10, 10]));
|
||||
```
|
||||
|
||||
If we query the table using the `sumMap`, `sumMapWithOverflow` with the array type syntax, and `toTypeName` functions then we can see that
|
||||
for the `sumMapWithOverflow` function, the data type of the summed values array is the same as the argument type, both `UInt8` (i.e. summation was done with overflow). For `sumMap` the data type of the summed values arrays has changed from `UInt8` to `UInt64` such that overflow does not occur.
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT
|
||||
timeslot,
|
||||
toTypeName(sumMap(statusMap.status, statusMap.requests)),
|
||||
toTypeName(sumMapWithOverflow(statusMap.status, statusMap.requests)),
|
||||
FROM sum_map
|
||||
GROUP BY timeslot
|
||||
```
|
||||
|
||||
Equivalently we could have used the tuple syntax with for the same result.
|
||||
|
||||
``` sql
|
||||
SELECT
|
||||
timeslot,
|
||||
toTypeName(sumMap(statusMapTuple)),
|
||||
toTypeName(sumMapWithOverflow(statusMapTuple)),
|
||||
FROM sum_map
|
||||
GROUP BY timeslot
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌────────────timeslot─┬─toTypeName(sumMap(statusMap.status, statusMap.requests))─┬─toTypeName(sumMapWithOverflow(statusMap.status, statusMap.requests))─┐
|
||||
1. │ 2000-01-01 00:01:00 │ Tuple(Array(UInt8), Array(UInt64)) │ Tuple(Array(UInt8), Array(UInt8)) │
|
||||
2. │ 2000-01-01 00:00:00 │ Tuple(Array(UInt8), Array(UInt64)) │ Tuple(Array(UInt8), Array(UInt8)) │
|
||||
└─────────────────────┴──────────────────────────────────────────────────────────┴──────────────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
**See Also**
|
||||
|
||||
- [sumMap](../reference/summap.md)
|
||||
@ -8,3 +8,64 @@ sidebar_position: 140
|
||||
Computes the sum of the numbers, using the same data type for the result as for the input parameters. If the sum exceeds the maximum value for this data type, it is calculated with overflow.
|
||||
|
||||
Only works for numbers.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
sumWithOverflow(num)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
- `num`: Column of numeric values. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- The sum of the values. [(U)Int*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Decimal*](../../data-types/decimal.md).
|
||||
|
||||
**Example**
|
||||
|
||||
First we create a table `employees` and insert some fictional employee data into it. For this example we will select `salary` as `UInt16` such that a sum of these values may produce an overflow.
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
CREATE TABLE employees
|
||||
(
|
||||
`id` UInt32,
|
||||
`name` String,
|
||||
`monthly_salary` UInt16
|
||||
)
|
||||
ENGINE = Log
|
||||
```
|
||||
|
||||
```sql
|
||||
SELECT
|
||||
sum(monthly_salary) AS no_overflow,
|
||||
sumWithOverflow(monthly_salary) AS overflow,
|
||||
toTypeName(no_overflow),
|
||||
toTypeName(overflow)
|
||||
FROM employees
|
||||
```
|
||||
|
||||
We query for the total amount of the employee salaries using the `sum` and `sumWithOverflow` functions and show their types using the `toTypeName` function.
|
||||
For the `sum` function the resulting type is `UInt64`, big enough to contain the sum, whilst for `sumWithOverflow` the resulting type remains as `UInt16`.
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT
|
||||
sum(monthly_salary) AS no_overflow,
|
||||
sumWithOverflow(monthly_salary) AS overflow,
|
||||
toTypeName(no_overflow),
|
||||
toTypeName(overflow),
|
||||
FROM employees;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
|
||||
```response
|
||||
┌─no_overflow─┬─overflow─┬─toTypeName(no_overflow)─┬─toTypeName(overflow)─┐
|
||||
1. │ 118700 │ 53164 │ UInt64 │ UInt16 │
|
||||
└─────────────┴──────────┴─────────────────────────┴──────────────────────┘
|
||||
```
|
||||
@ -31,6 +31,8 @@ This function uses a numerically unstable algorithm. If you need numerical stabi
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
DROP TABLE IF EXISTS test_data;
|
||||
CREATE TABLE test_data
|
||||
@ -47,6 +49,8 @@ SELECT
|
||||
FROM test_data;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
3
|
||||
```
|
||||
@ -94,6 +98,8 @@ SELECT
|
||||
FROM test_data;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
0.5999999999999999
|
||||
```
|
||||
|
||||
@ -1907,6 +1907,12 @@ If the addition results in a value outside the bounds of the data type, the resu
|
||||
date_add(unit, value, date)
|
||||
```
|
||||
|
||||
Alternative syntax:
|
||||
|
||||
``` sql
|
||||
date_add(date, INTERVAL value unit)
|
||||
```
|
||||
|
||||
Aliases: `dateAdd`, `DATE_ADD`.
|
||||
|
||||
**Arguments**
|
||||
@ -1946,6 +1952,20 @@ Result:
|
||||
└───────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
```sql
|
||||
SELECT date_add(toDate('2018-01-01'), INTERVAL 3 YEAR);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```text
|
||||
┌─plus(toDate('2018-01-01'), toIntervalYear(3))─┐
|
||||
│ 2021-01-01 │
|
||||
└───────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
|
||||
|
||||
**See Also**
|
||||
|
||||
- [addDate](#addDate)
|
||||
@ -1962,6 +1982,13 @@ If the subtraction results in a value outside the bounds of the data type, the r
|
||||
date_sub(unit, value, date)
|
||||
```
|
||||
|
||||
Alternative syntax:
|
||||
|
||||
``` sql
|
||||
date_sub(date, INTERVAL value unit)
|
||||
```
|
||||
|
||||
|
||||
Aliases: `dateSub`, `DATE_SUB`.
|
||||
|
||||
**Arguments**
|
||||
@ -2002,6 +2029,19 @@ Result:
|
||||
└────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
``` sql
|
||||
SELECT date_sub(toDate('2018-01-01'), INTERVAL 3 YEAR);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─minus(toDate('2018-01-01'), toIntervalYear(3))─┐
|
||||
│ 2015-01-01 │
|
||||
└────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
|
||||
**See Also**
|
||||
|
||||
- [subDate](#subDate)
|
||||
|
||||
@ -4,48 +4,72 @@ sidebar_label: SVG
|
||||
title: "Functions for Generating SVG images from Geo data"
|
||||
---
|
||||
|
||||
## Syntax
|
||||
## Svg
|
||||
|
||||
Returns a string of select SVG element tags from Geo data.
|
||||
|
||||
**Syntax**
|
||||
|
||||
``` sql
|
||||
SVG(geometry,[style])
|
||||
Svg(geometry,[style])
|
||||
```
|
||||
|
||||
### Parameters
|
||||
Aliases: `SVG`, `svg`
|
||||
|
||||
- `geometry` — Geo data
|
||||
- `style` — Optional style name
|
||||
**Parameters**
|
||||
|
||||
### Returned value
|
||||
- `geometry` — Geo data. [Geo](../../data-types/geo).
|
||||
- `style` — Optional style name. [String](../../data-types/string).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- The SVG representation of the geometry:
|
||||
- SVG circle
|
||||
- SVG polygon
|
||||
- SVG path
|
||||
|
||||
Type: String
|
||||
Type: [String](../../data-types/string)
|
||||
|
||||
## Examples
|
||||
**Examples**
|
||||
|
||||
**Circle**
|
||||
|
||||
Query:
|
||||
|
||||
### Circle
|
||||
```sql
|
||||
SELECT SVG((0., 0.))
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
<circle cx="0" cy="0" r="5" style=""/>
|
||||
```
|
||||
|
||||
### Polygon
|
||||
**Polygon**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT SVG([(0., 0.), (10, 0), (10, 10), (0, 10)])
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
<polygon points="0,0 0,10 10,10 10,0 0,0" style=""/>
|
||||
```
|
||||
|
||||
### Path
|
||||
**Path**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT SVG([[(0., 0.), (10, 0), (10, 10), (0, 10)], [(4., 4.), (5, 4), (5, 5), (4, 5)]])
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
<g fill-rule="evenodd"><path d="M 0,0 L 0,10 L 10,10 L 10,0 L 0,0M 4,4 L 5,4 L 5,5 L 4,5 L 4,4 z " style=""/></g>
|
||||
```
|
||||
|
||||
@ -3220,6 +3220,74 @@ Result:
|
||||
└───────────────────────────────────────┘
|
||||
```
|
||||
|
||||
## connectionId
|
||||
|
||||
Retrieves the connection ID of the client that submitted the current query and returns it as a UInt64 integer.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
connectionId()
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
None.
|
||||
|
||||
**Returned value**
|
||||
|
||||
Returns an integer of type UInt64.
|
||||
|
||||
**Implementation details**
|
||||
|
||||
This function is most useful in debugging scenarios or for internal purposes within the MySQL handler. It was created for compatibility with [MySQL's `CONNECTION_ID` function](https://dev.mysql.com/doc/refman/8.0/en/information-functions.html#function_connection-id) It is not typically used in production queries.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT connectionId();
|
||||
```
|
||||
|
||||
```response
|
||||
0
|
||||
```
|
||||
|
||||
## connection_id
|
||||
|
||||
An alias of `connectionId`. Retrieves the connection ID of the client that submitted the current query and returns it as a UInt64 integer.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
connection_id()
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
None.
|
||||
|
||||
**Returned value**
|
||||
|
||||
Returns an integer of type UInt64.
|
||||
|
||||
**Implementation details**
|
||||
|
||||
This function is most useful in debugging scenarios or for internal purposes within the MySQL handler. It was created for compatibility with [MySQL's `CONNECTION_ID` function](https://dev.mysql.com/doc/refman/8.0/en/information-functions.html#function_connection-id) It is not typically used in production queries.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT connection_id();
|
||||
```
|
||||
|
||||
```response
|
||||
0
|
||||
```
|
||||
|
||||
## getClientHTTPHeader
|
||||
|
||||
Get the value of an HTTP header.
|
||||
|
||||
@ -79,9 +79,9 @@ round(expression [, decimal_places])
|
||||
|
||||
The rounded number of the same type as the input number.
|
||||
|
||||
### Examples
|
||||
**Examples**
|
||||
|
||||
**Example of use with Float**
|
||||
Example of usage with Float:
|
||||
|
||||
``` sql
|
||||
SELECT number / 2 AS x, round(x) FROM system.numbers LIMIT 3;
|
||||
@ -95,7 +95,7 @@ SELECT number / 2 AS x, round(x) FROM system.numbers LIMIT 3;
|
||||
└─────┴──────────────────────────┘
|
||||
```
|
||||
|
||||
**Example of use with Decimal**
|
||||
Example of usage with Decimal:
|
||||
|
||||
``` sql
|
||||
SELECT cast(number / 2 AS Decimal(10,4)) AS x, round(x) FROM system.numbers LIMIT 3;
|
||||
@ -124,9 +124,7 @@ SELECT cast(number / 2 AS Decimal(10,4)) AS x, round(x) FROM system.numbers LIM
|
||||
└────────┴──────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
**Examples of rounding**
|
||||
|
||||
Rounding to the nearest number.
|
||||
Examples of rounding to the nearest number:
|
||||
|
||||
``` text
|
||||
round(3.2, 0) = 3
|
||||
@ -183,9 +181,7 @@ roundBankers(expression [, decimal_places])
|
||||
|
||||
A value rounded by the banker’s rounding method.
|
||||
|
||||
### Examples
|
||||
|
||||
**Example of use**
|
||||
**Examples**
|
||||
|
||||
Query:
|
||||
|
||||
@ -210,7 +206,7 @@ Result:
|
||||
└─────┴───┘
|
||||
```
|
||||
|
||||
**Examples of Banker’s rounding**
|
||||
Examples of Banker’s rounding:
|
||||
|
||||
``` text
|
||||
roundBankers(0.4) = 0
|
||||
@ -226,25 +222,180 @@ roundBankers(10.755, 2) = 10.76
|
||||
|
||||
- [round](#rounding_functions-round)
|
||||
|
||||
## roundToExp2(num)
|
||||
## roundToExp2
|
||||
|
||||
Accepts a number. If the number is less than one, it returns 0. Otherwise, it rounds the number down to the nearest (whole non-negative) degree of two.
|
||||
Accepts a number. If the number is less than one, it returns `0`. Otherwise, it rounds the number down to the nearest (whole non-negative) degree of two.
|
||||
|
||||
## roundDuration(num)
|
||||
**Syntax**
|
||||
|
||||
Accepts a number. If the number is less than one, it returns 0. Otherwise, it rounds the number down to numbers from the set: 1, 10, 30, 60, 120, 180, 240, 300, 600, 1200, 1800, 3600, 7200, 18000, 36000.
|
||||
```sql
|
||||
roundToExp2(num)
|
||||
```
|
||||
|
||||
## roundAge(num)
|
||||
**Parameters**
|
||||
|
||||
Accepts a number. If the number is
|
||||
- smaller than 1, it returns 0,
|
||||
- between 1 and 17, it returns 17,
|
||||
- between 18 and 24, it returns 18,
|
||||
- between 25 and 34, it returns 25,
|
||||
- between 35 and 44, it returns 35,
|
||||
- between 45 and 54, it returns 45,
|
||||
- larger than 55, it returns 55.
|
||||
- `num`: A number representing an age in years. [UInt](../data-types/int-uint.md)/[Float](../data-types/float.md).
|
||||
|
||||
## roundDown(num, arr)
|
||||
**Returned value**
|
||||
|
||||
- `0`, for `num` $\lt 1$. [UInt8](../data-types/int-uint.md).
|
||||
- `num` rounded down to the nearest (whole non-negative) degree of two. [UInt](../data-types/int-uint.md)/[Float](../data-types/float.md) equivalent to the input type.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT *, roundToExp2(*) FROM system.numbers WHERE number IN (0, 2, 5, 10, 19, 50)
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─number─┬─roundToExp2(number)─┐
|
||||
│ 0 │ 0 │
|
||||
│ 2 │ 2 │
|
||||
│ 5 │ 4 │
|
||||
│ 10 │ 8 │
|
||||
│ 19 │ 16 │
|
||||
│ 50 │ 32 │
|
||||
└────────┴─────────────────────┘
|
||||
```
|
||||
|
||||
## roundDuration
|
||||
|
||||
Accepts a number. If the number is less than one, it returns `0`. Otherwise, it rounds the number down to numbers from the set of commonly used durations: `1, 10, 30, 60, 120, 180, 240, 300, 600, 1200, 1800, 3600, 7200, 18000, 36000`.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
roundDuration(num)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `num`: A number to round to one of the numbers in the set of common durations. [UInt](../data-types/int-uint.md)/[Float](../data-types/float.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- `0`, for `num` $\lt 1$.
|
||||
- Otherwise, one of: `1, 10, 30, 60, 120, 180, 240, 300, 600, 1200, 1800, 3600, 7200, 18000, 36000`. [UInt16](../data-types/int-uint.md).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT *, roundDuration(*) FROM system.numbers WHERE number IN (0, 9, 19, 47, 101, 149, 205, 271, 421, 789, 1423, 2345, 4567, 9876, 24680, 42573)
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─number─┬─roundDuration(number)─┐
|
||||
│ 0 │ 0 │
|
||||
│ 9 │ 1 │
|
||||
│ 19 │ 10 │
|
||||
│ 47 │ 30 │
|
||||
│ 101 │ 60 │
|
||||
│ 149 │ 120 │
|
||||
│ 205 │ 180 │
|
||||
│ 271 │ 240 │
|
||||
│ 421 │ 300 │
|
||||
│ 789 │ 600 │
|
||||
│ 1423 │ 1200 │
|
||||
│ 2345 │ 1800 │
|
||||
│ 4567 │ 3600 │
|
||||
│ 9876 │ 7200 │
|
||||
│ 24680 │ 18000 │
|
||||
│ 42573 │ 36000 │
|
||||
└────────┴───────────────────────┘
|
||||
```
|
||||
|
||||
## roundAge
|
||||
|
||||
Accepts a number within various commonly used ranges of human age and returns either a maximum or a minimum within that range.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
roundAge(num)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `age`: A number representing an age in years. [UInt](../data-types/int-uint.md)/[Float](../data-types/float.md).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Returns `0`, for $age \lt 1$.
|
||||
- Returns `17`, for $1 \leq age \leq 17$.
|
||||
- Returns `18`, for $18 \leq age \leq 24$.
|
||||
- Returns `25`, for $25 \leq age \leq 34$.
|
||||
- Returns `35`, for $35 \leq age \leq 44$.
|
||||
- Returns `45`, for $45 \leq age \leq 54$.
|
||||
- Returns `55`, for $age \geq 55$.
|
||||
|
||||
Type: [UInt8](../data-types/int-uint.md).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT *, roundAge(*) FROM system.numbers WHERE number IN (0, 5, 20, 31, 37, 54, 72);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─number─┬─roundAge(number)─┐
|
||||
│ 0 │ 0 │
|
||||
│ 5 │ 17 │
|
||||
│ 20 │ 18 │
|
||||
│ 31 │ 25 │
|
||||
│ 37 │ 35 │
|
||||
│ 54 │ 45 │
|
||||
│ 72 │ 55 │
|
||||
└────────┴──────────────────┘
|
||||
```
|
||||
|
||||
## roundDown
|
||||
|
||||
Accepts a number and rounds it down to an element in the specified array. If the value is less than the lowest bound, the lowest bound is returned.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
roundDown(num, arr)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `num`: A number to round down. [Numeric](../data-types/int-uint.md).
|
||||
- `arr`: Array of elements to round `age` down to. [Array](../data-types/array.md) of [UInt](../data-types/int-uint.md)/[Float](../data-types/float.md) type.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Number rounded down to an element in `arr`. If the value is less than the lowest bound, the lowest bound is returned. [UInt](../data-types/int-uint.md)/[Float](../data-types/float.md) type deduced from the type of `arr`.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT *, roundDown(*, [3, 4, 5]) FROM system.numbers WHERE number IN (0, 1, 2, 3, 4, 5)
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─number─┬─roundDown(number, [3, 4, 5])─┐
|
||||
│ 0 │ 3 │
|
||||
│ 1 │ 3 │
|
||||
│ 2 │ 3 │
|
||||
│ 3 │ 3 │
|
||||
│ 4 │ 4 │
|
||||
│ 5 │ 5 │
|
||||
└────────┴──────────────────────────────┘
|
||||
```
|
||||
|
||||
@ -88,20 +88,93 @@ Result:
|
||||
|
||||
## length
|
||||
|
||||
Returns the length of a string in bytes (not: in characters or Unicode code points).
|
||||
|
||||
The function also works for arrays.
|
||||
Returns the length of a string in bytes rather than in characters or Unicode code points. The function also works for arrays.
|
||||
|
||||
Alias: `OCTET_LENGTH`
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
length(s)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `s`: An input string or array. [String](../data-types/string)/[Array](../data-types/array).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Length of the string or array `s` in bytes. [UInt64](../data-types/int-uint).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT length('Hello, world!');
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─length('Hello, world!')─┐
|
||||
│ 13 │
|
||||
└─────────────────────────┘
|
||||
```
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT length([1, 2, 3, 4]);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─length([1, 2, 3, 4])─┐
|
||||
│ 4 │
|
||||
└──────────────────────┘
|
||||
```
|
||||
|
||||
|
||||
## lengthUTF8
|
||||
|
||||
Returns the length of a string in Unicode code points (not: in bytes or characters). It assumes that the string contains valid UTF-8 encoded text. If this assumption is violated, no exception is thrown and the result is undefined.
|
||||
Returns the length of a string in Unicode code points rather than in bytes or characters. It assumes that the string contains valid UTF-8 encoded text. If this assumption is violated, no exception is thrown and the result is undefined.
|
||||
|
||||
Alias:
|
||||
Aliases:
|
||||
- `CHAR_LENGTH`
|
||||
- `CHARACTER_LENGTH`
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
lengthUTF8(s)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `s`: String containing valid UTF-8 encoded text. [String](../data-types/string).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Length of the string `s` in Unicode code points. [UInt64](../data-types/int-uint.md).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT lengthUTF8('Здравствуй, мир!');
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─lengthUTF8('Здравствуй, мир!')─┐
|
||||
│ 16 │
|
||||
└────────────────────────────────┘
|
||||
```
|
||||
|
||||
## left
|
||||
|
||||
Returns a substring of string `s` with a specified `offset` starting from the left.
|
||||
@ -1055,6 +1128,34 @@ Result:
|
||||
|
||||
Like `base58Decode` but returns an empty string in case of error.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
tryBase58Decode(encoded)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `encoded`: [String](../../sql-reference/data-types/string.md) column or constant. If the string is not a valid Base58-encoded value, returns an empty string in case of error.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- A string containing the decoded value of the argument.
|
||||
|
||||
**Examples**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT tryBase58Decode('3dc8KtHrwM') as res, tryBase58Decode('invalid') as res_invalid;
|
||||
```
|
||||
|
||||
```response
|
||||
┌─res─────┬─res_invalid─┐
|
||||
│ Encoded │ │
|
||||
└─────────┴─────────────┘
|
||||
```
|
||||
|
||||
## base64Encode
|
||||
|
||||
Encodes a String or FixedString as base64.
|
||||
@ -1071,6 +1172,30 @@ Alias: `FROM_BASE64`.
|
||||
|
||||
Like `base64Decode` but returns an empty string in case of error.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
tryBase64Decode(encoded)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `encoded`: [String](../../sql-reference/data-types/string.md) column or constant. If the string is not a valid Base58-encoded value, returns an empty string in case of error.
|
||||
|
||||
**Examples**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT tryBase64Decode('RW5jb2RlZA==') as res, tryBase64Decode('invalid') as res_invalid;
|
||||
```
|
||||
|
||||
```response
|
||||
┌─res─────┬─res_invalid─┐
|
||||
│ Encoded │ │
|
||||
└─────────┴─────────────┘
|
||||
```
|
||||
|
||||
## endsWith {#endswith}
|
||||
|
||||
Returns whether string `str` ends with `suffix`.
|
||||
|
||||
@ -817,6 +817,42 @@ Result:
|
||||
└─────────────────────────────────────┘
|
||||
```
|
||||
|
||||
## flattenTuple
|
||||
|
||||
Returns a flattened `output` tuple from a nested named `input` tuple. Elements of the `output` tuple are the paths from the original `input` tuple. For instance: `Tuple(a Int, Tuple(b Int, c Int)) -> Tuple(a Int, b Int, c Int)`. `flattenTuple` can be used to select all paths from type `Object` as separate columns.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
flattenTuple(input)
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `input`: Nested named tuple to flatten. [Tuple](../data-types/tuple).
|
||||
|
||||
**Returned value**
|
||||
|
||||
- `output` tuple whose elements are paths from the original `input`. [Tuple](../data-types/tuple).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
CREATE TABLE t_flatten_tuple(t Tuple(t1 Nested(a UInt32, s String), b UInt32, t2 Tuple(k String, v UInt32))) ENGINE = Memory;
|
||||
INSERT INTO t_flatten_tuple VALUES (([(1, 'a'), (2, 'b')], 3, ('c', 4)));
|
||||
SELECT flattenTuple(t) FROM t_flatten_tuple;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─flattenTuple(t)───────────┐
|
||||
│ ([1,2],['a','b'],3,'c',4) │
|
||||
└───────────────────────────┘
|
||||
```
|
||||
|
||||
## Distance functions
|
||||
|
||||
All supported functions are described in [distance functions documentation](../../sql-reference/functions/distance-functions.md).
|
||||
|
||||
@ -6,24 +6,29 @@ sidebar_label: Embedded Dictionaries
|
||||
|
||||
# Functions for Working with Embedded Dictionaries
|
||||
|
||||
:::note
|
||||
In order for the functions below to work, the server config must specify the paths and addresses for getting all the embedded dictionaries. The dictionaries are loaded at the first call of any of these functions. If the reference lists can’t be loaded, an exception is thrown.
|
||||
|
||||
For information about creating reference lists, see the section “Dictionaries”.
|
||||
As such, the examples shown in this section will throw an exception in [ClickHouse Fiddle](https://fiddle.clickhouse.com/) and in quick release and production deployments by default, unless first configured.
|
||||
:::
|
||||
|
||||
For information about creating reference lists, see the section [“Dictionaries”](../dictionaries#embedded-dictionaries).
|
||||
|
||||
## Multiple Geobases
|
||||
|
||||
ClickHouse supports working with multiple alternative geobases (regional hierarchies) simultaneously, in order to support various perspectives on which countries certain regions belong to.
|
||||
|
||||
The ‘clickhouse-server’ config specifies the file with the regional hierarchy::`<path_to_regions_hierarchy_file>/opt/geo/regions_hierarchy.txt</path_to_regions_hierarchy_file>`
|
||||
The ‘clickhouse-server’ config specifies the file with the regional hierarchy:
|
||||
|
||||
Besides this file, it also searches for files nearby that have the _ symbol and any suffix appended to the name (before the file extension).
|
||||
For example, it will also find the file `/opt/geo/regions_hierarchy_ua.txt`, if present.
|
||||
```<path_to_regions_hierarchy_file>/opt/geo/regions_hierarchy.txt</path_to_regions_hierarchy_file>```
|
||||
|
||||
`ua` is called the dictionary key. For a dictionary without a suffix, the key is an empty string.
|
||||
Besides this file, it also searches for files nearby that have the `_` symbol and any suffix appended to the name (before the file extension).
|
||||
For example, it will also find the file `/opt/geo/regions_hierarchy_ua.txt`, if present. Here `ua` is called the dictionary key. For a dictionary without a suffix, the key is an empty string.
|
||||
|
||||
All the dictionaries are re-loaded in runtime (once every certain number of seconds, as defined in the builtin_dictionaries_reload_interval config parameter, or once an hour by default). However, the list of available dictionaries is defined one time, when the server starts.
|
||||
All the dictionaries are re-loaded during runtime (once every certain number of seconds, as defined in the [`builtin_dictionaries_reload_interval`](../../operations/server-configuration-parameters/settings#builtin-dictionaries-reload-interval) config parameter, or once an hour by default). However, the list of available dictionaries is defined once, when the server starts.
|
||||
|
||||
All functions for working with regions have an optional argument at the end – the dictionary key. It is referred to as the geobase.
|
||||
|
||||
Example:
|
||||
|
||||
``` sql
|
||||
@ -32,13 +37,116 @@ regionToCountry(RegionID, '') – Uses the default dictionary: /opt/geo/regions_
|
||||
regionToCountry(RegionID, 'ua') – Uses the dictionary for the 'ua' key: /opt/geo/regions_hierarchy_ua.txt
|
||||
```
|
||||
|
||||
### regionToCity(id\[, geobase\])
|
||||
### regionToName
|
||||
|
||||
Accepts a UInt32 number – the region ID from the geobase. If this region is a city or part of a city, it returns the region ID for the appropriate city. Otherwise, returns 0.
|
||||
Accepts a region ID and geobase and returns a string of the name of the region in the corresponding language. If the region with the specified ID does not exist, an empty string is returned.
|
||||
|
||||
### regionToArea(id\[, geobase\])
|
||||
**Syntax**
|
||||
|
||||
Converts a region to an area (type 5 in the geobase). In every other way, this function is the same as ‘regionToCity’.
|
||||
``` sql
|
||||
regionToName(id\[, lang\])
|
||||
```
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Name of the region in the corresponding language specified by `geobase`. [String](../data-types/string).
|
||||
- Otherwise, an empty string.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT regionToName(number::UInt32,'en') FROM numbers(0,5);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─regionToName(CAST(number, 'UInt32'), 'en')─┐
|
||||
│ │
|
||||
│ World │
|
||||
│ USA │
|
||||
│ Colorado │
|
||||
│ Boulder County │
|
||||
└────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### regionToCity
|
||||
|
||||
Accepts a region ID from the geobase. If this region is a city or part of a city, it returns the region ID for the appropriate city. Otherwise, returns 0.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
regionToCity(id [, geobase])
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Region ID for the appropriate city, if it exists. [UInt32](../data-types/int-uint).
|
||||
- 0, if there is none.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
```sql
|
||||
SELECT regionToName(number::UInt32, 'en'), regionToCity(number::UInt32) AS id, regionToName(id, 'en') FROM numbers(13);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
```response
|
||||
┌─regionToName(CAST(number, 'UInt32'), 'en')─┬─id─┬─regionToName(regionToCity(CAST(number, 'UInt32')), 'en')─┐
|
||||
│ │ 0 │ │
|
||||
│ World │ 0 │ │
|
||||
│ USA │ 0 │ │
|
||||
│ Colorado │ 0 │ │
|
||||
│ Boulder County │ 0 │ │
|
||||
│ Boulder │ 5 │ Boulder │
|
||||
│ China │ 0 │ │
|
||||
│ Sichuan │ 0 │ │
|
||||
│ Chengdu │ 8 │ Chengdu │
|
||||
│ America │ 0 │ │
|
||||
│ North America │ 0 │ │
|
||||
│ Eurasia │ 0 │ │
|
||||
│ Asia │ 0 │ │
|
||||
└────────────────────────────────────────────┴────┴──────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### regionToArea
|
||||
|
||||
Converts a region to an area (type 5 in the geobase). In every other way, this function is the same as [‘regionToCity’](#regiontocity).
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
regionToArea(id [, geobase])
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Region ID for the appropriate area, if it exists. [UInt32](../data-types/int-uint).
|
||||
- 0, if there is none.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT DISTINCT regionToName(regionToArea(toUInt32(number), 'ua'))
|
||||
@ -46,6 +154,8 @@ FROM system.numbers
|
||||
LIMIT 15
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─regionToName(regionToArea(toUInt32(number), \'ua\'))─┐
|
||||
│ │
|
||||
@ -66,16 +176,38 @@ LIMIT 15
|
||||
└──────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### regionToDistrict(id\[, geobase\])
|
||||
### regionToDistrict
|
||||
|
||||
Converts a region to a federal district (type 4 in the geobase). In every other way, this function is the same as ‘regionToCity’.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
regionToDistrict(id [, geobase])
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Region ID for the appropriate city, if it exists. [UInt32](../data-types/int-uint).
|
||||
- 0, if there is none.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT DISTINCT regionToName(regionToDistrict(toUInt32(number), 'ua'))
|
||||
FROM system.numbers
|
||||
LIMIT 15
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─regionToName(regionToDistrict(toUInt32(number), \'ua\'))─┐
|
||||
│ │
|
||||
@ -96,17 +228,103 @@ LIMIT 15
|
||||
└──────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### regionToCountry(id\[, geobase\])
|
||||
### regionToCountry
|
||||
|
||||
Converts a region to a country. In every other way, this function is the same as ‘regionToCity’.
|
||||
Example: `regionToCountry(toUInt32(213)) = 225` converts Moscow (213) to Russia (225).
|
||||
Converts a region to a country (type 3 in the geobase). In every other way, this function is the same as ‘regionToCity’.
|
||||
|
||||
### regionToContinent(id\[, geobase\])
|
||||
**Syntax**
|
||||
|
||||
Converts a region to a continent. In every other way, this function is the same as ‘regionToCity’.
|
||||
Example: `regionToContinent(toUInt32(213)) = 10001` converts Moscow (213) to Eurasia (10001).
|
||||
```sql
|
||||
regionToCountry(id [, geobase])
|
||||
```
|
||||
|
||||
### regionToTopContinent(id\[, geobase\])
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Region ID for the appropriate country, if it exists. [UInt32](../data-types/int-uint).
|
||||
- 0, if there is none.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT regionToName(number::UInt32, 'en'), regionToCountry(number::UInt32) AS id, regionToName(id, 'en') FROM numbers(13);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─regionToName(CAST(number, 'UInt32'), 'en')─┬─id─┬─regionToName(regionToCountry(CAST(number, 'UInt32')), 'en')─┐
|
||||
│ │ 0 │ │
|
||||
│ World │ 0 │ │
|
||||
│ USA │ 2 │ USA │
|
||||
│ Colorado │ 2 │ USA │
|
||||
│ Boulder County │ 2 │ USA │
|
||||
│ Boulder │ 2 │ USA │
|
||||
│ China │ 6 │ China │
|
||||
│ Sichuan │ 6 │ China │
|
||||
│ Chengdu │ 6 │ China │
|
||||
│ America │ 0 │ │
|
||||
│ North America │ 0 │ │
|
||||
│ Eurasia │ 0 │ │
|
||||
│ Asia │ 0 │ │
|
||||
└────────────────────────────────────────────┴────┴─────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### regionToContinent
|
||||
|
||||
Converts a region to a continent (type 1 in the geobase). In every other way, this function is the same as ‘regionToCity’.
|
||||
|
||||
**Syntax**
|
||||
|
||||
```sql
|
||||
regionToContinent(id [, geobase])
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Region ID for the appropriate continent, if it exists. [UInt32](../data-types/int-uint).
|
||||
- 0, if there is none.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT regionToName(number::UInt32, 'en'), regionToContinent(number::UInt32) AS id, regionToName(id, 'en') FROM numbers(13);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─regionToName(CAST(number, 'UInt32'), 'en')─┬─id─┬─regionToName(regionToContinent(CAST(number, 'UInt32')), 'en')─┐
|
||||
│ │ 0 │ │
|
||||
│ World │ 0 │ │
|
||||
│ USA │ 10 │ North America │
|
||||
│ Colorado │ 10 │ North America │
|
||||
│ Boulder County │ 10 │ North America │
|
||||
│ Boulder │ 10 │ North America │
|
||||
│ China │ 12 │ Asia │
|
||||
│ Sichuan │ 12 │ Asia │
|
||||
│ Chengdu │ 12 │ Asia │
|
||||
│ America │ 9 │ America │
|
||||
│ North America │ 10 │ North America │
|
||||
│ Eurasia │ 11 │ Eurasia │
|
||||
│ Asia │ 12 │ Asia │
|
||||
└────────────────────────────────────────────┴────┴───────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### regionToTopContinent
|
||||
|
||||
Finds the highest continent in the hierarchy for the region.
|
||||
|
||||
@ -116,37 +334,175 @@ Finds the highest continent in the hierarchy for the region.
|
||||
regionToTopContinent(id[, geobase])
|
||||
```
|
||||
|
||||
**Arguments**
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../../sql-reference/data-types/int-uint.md).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../../sql-reference/data-types/string.md). Optional.
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Identifier of the top level continent (the latter when you climb the hierarchy of regions).
|
||||
- Identifier of the top level continent (the latter when you climb the hierarchy of regions).[UInt32](../data-types/int-uint).
|
||||
- 0, if there is none.
|
||||
|
||||
Type: `UInt32`.
|
||||
**Example**
|
||||
|
||||
### regionToPopulation(id\[, geobase\])
|
||||
Query:
|
||||
|
||||
Gets the population for a region.
|
||||
The population can be recorded in files with the geobase. See the section “Dictionaries”.
|
||||
If the population is not recorded for the region, it returns 0.
|
||||
In the geobase, the population might be recorded for child regions, but not for parent regions.
|
||||
``` sql
|
||||
SELECT regionToName(number::UInt32, 'en'), regionToTopContinent(number::UInt32) AS id, regionToName(id, 'en') FROM numbers(13);
|
||||
```
|
||||
|
||||
### regionIn(lhs, rhs\[, geobase\])
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─regionToName(CAST(number, 'UInt32'), 'en')─┬─id─┬─regionToName(regionToTopContinent(CAST(number, 'UInt32')), 'en')─┐
|
||||
│ │ 0 │ │
|
||||
│ World │ 0 │ │
|
||||
│ USA │ 9 │ America │
|
||||
│ Colorado │ 9 │ America │
|
||||
│ Boulder County │ 9 │ America │
|
||||
│ Boulder │ 9 │ America │
|
||||
│ China │ 11 │ Eurasia │
|
||||
│ Sichuan │ 11 │ Eurasia │
|
||||
│ Chengdu │ 11 │ Eurasia │
|
||||
│ America │ 9 │ America │
|
||||
│ North America │ 9 │ America │
|
||||
│ Eurasia │ 11 │ Eurasia │
|
||||
│ Asia │ 11 │ Eurasia │
|
||||
└────────────────────────────────────────────┴────┴──────────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
### regionToPopulation
|
||||
|
||||
Gets the population for a region. The population can be recorded in files with the geobase. See the section [“Dictionaries”](../dictionaries#embedded-dictionaries). If the population is not recorded for the region, it returns 0. In the geobase, the population might be recorded for child regions, but not for parent regions.
|
||||
|
||||
**Syntax**
|
||||
|
||||
``` sql
|
||||
regionToPopulation(id[, geobase])
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Population for the region. [UInt32](../data-types/int-uint).
|
||||
- 0, if there is none.
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT regionToName(number::UInt32, 'en'), regionToPopulation(number::UInt32) AS id, regionToName(id, 'en') FROM numbers(13);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─regionToName(CAST(number, 'UInt32'), 'en')─┬─population─┐
|
||||
│ │ 0 │
|
||||
│ World │ 4294967295 │
|
||||
│ USA │ 330000000 │
|
||||
│ Colorado │ 5700000 │
|
||||
│ Boulder County │ 330000 │
|
||||
│ Boulder │ 100000 │
|
||||
│ China │ 1500000000 │
|
||||
│ Sichuan │ 83000000 │
|
||||
│ Chengdu │ 20000000 │
|
||||
│ America │ 1000000000 │
|
||||
│ North America │ 600000000 │
|
||||
│ Eurasia │ 4294967295 │
|
||||
│ Asia │ 4294967295 │
|
||||
└────────────────────────────────────────────┴────────────┘
|
||||
```
|
||||
|
||||
### regionIn
|
||||
|
||||
Checks whether a `lhs` region belongs to a `rhs` region. Returns a UInt8 number equal to 1 if it belongs, or 0 if it does not belong.
|
||||
|
||||
**Syntax**
|
||||
|
||||
``` sql
|
||||
regionIn(lhs, rhs\[, geobase\])
|
||||
```
|
||||
|
||||
**Parameters**
|
||||
|
||||
- `lhs` — Lhs region ID from the geobase. [UInt32](../../sql-reference/data-types/int-uint).
|
||||
- `rhs` — Rhs region ID from the geobase. [UInt32](../../sql-reference/data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- 1, if it belongs. [UInt8](../../sql-reference/data-types/int-uint).
|
||||
- 0, if it doesn't belong.
|
||||
|
||||
**Implementation details**
|
||||
|
||||
Checks whether a ‘lhs’ region belongs to a ‘rhs’ region. Returns a UInt8 number equal to 1 if it belongs, or 0 if it does not belong.
|
||||
The relationship is reflexive – any region also belongs to itself.
|
||||
|
||||
### regionHierarchy(id\[, geobase\])
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT regionToName(n1.number::UInt32, 'en') || (regionIn(n1.number::UInt32, n2.number::UInt32) ? ' is in ' : ' is not in ') || regionToName(n2.number::UInt32, 'en') FROM numbers(1,2) AS n1 CROSS JOIN numbers(1,5) AS n2;
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
World is in World
|
||||
World is not in USA
|
||||
World is not in Colorado
|
||||
World is not in Boulder County
|
||||
World is not in Boulder
|
||||
USA is in World
|
||||
USA is in USA
|
||||
USA is not in Colorado
|
||||
USA is not in Boulder County
|
||||
USA is not in Boulder
|
||||
```
|
||||
|
||||
### regionHierarchy
|
||||
|
||||
Accepts a UInt32 number – the region ID from the geobase. Returns an array of region IDs consisting of the passed region and all parents along the chain.
|
||||
Example: `regionHierarchy(toUInt32(213)) = [213,1,3,225,10001,10000]`.
|
||||
|
||||
### regionToName(id\[, lang\])
|
||||
**Syntax**
|
||||
|
||||
Accepts a UInt32 number – the region ID from the geobase. A string with the name of the language can be passed as a second argument. Supported languages are: ru, en, ua, uk, by, kz, tr. If the second argument is omitted, the language ‘ru’ is used. If the language is not supported, an exception is thrown. Returns a string – the name of the region in the corresponding language. If the region with the specified ID does not exist, an empty string is returned.
|
||||
``` sql
|
||||
regionHierarchy(id\[, geobase\])
|
||||
```
|
||||
|
||||
`ua` and `uk` both mean Ukrainian.
|
||||
**Parameters**
|
||||
|
||||
- `id` — Region ID from the geobase. [UInt32](../data-types/int-uint).
|
||||
- `geobase` — Dictionary key. See [Multiple Geobases](#multiple-geobases). [String](../data-types/string). Optional.
|
||||
|
||||
**Returned value**
|
||||
|
||||
- Array of region IDs consisting of the passed region and all parents along the chain. [Array](../data-types/array)([UInt32](../data-types/int-uint)).
|
||||
|
||||
**Example**
|
||||
|
||||
Query:
|
||||
|
||||
``` sql
|
||||
SELECT regionHierarchy(number::UInt32) AS arr, arrayMap(id -> regionToName(id, 'en'), arr) FROM numbers(5);
|
||||
```
|
||||
|
||||
Result:
|
||||
|
||||
``` text
|
||||
┌─arr────────────┬─arrayMap(lambda(tuple(id), regionToName(id, 'en')), regionHierarchy(CAST(number, 'UInt32')))─┐
|
||||
│ [] │ [] │
|
||||
│ [1] │ ['World'] │
|
||||
│ [2,10,9,1] │ ['USA','North America','America','World'] │
|
||||
│ [3,2,10,9,1] │ ['Colorado','USA','North America','America','World'] │
|
||||
│ [4,3,2,10,9,1] │ ['Boulder County','Colorado','USA','North America','America','World'] │
|
||||
└────────────────┴──────────────────────────────────────────────────────────────────────────────────────────────┘
|
||||
```
|
||||
|
||||
@ -19,25 +19,51 @@ Subquery is another `SELECT` query that may be specified in parenthesis inside `
|
||||
|
||||
## FINAL Modifier
|
||||
|
||||
When `FINAL` is specified, ClickHouse fully merges the data before returning the result and thus performs all data transformations that happen during merges for the given table engine.
|
||||
When `FINAL` is specified, ClickHouse fully merges the data before returning the result. This also performs all data transformations that happen during merges for the given table engine.
|
||||
|
||||
It is applicable when selecting data from ReplacingMergeTree, SummingMergeTree, AggregatingMergeTree, CollapsingMergeTree and VersionedCollapsingMergeTree tables.
|
||||
It is applicable when selecting data from from tables using the following table engines:
|
||||
- `ReplacingMergeTree`
|
||||
- `SummingMergeTree`
|
||||
- `AggregatingMergeTree`
|
||||
- `CollapsingMergeTree`
|
||||
- `VersionedCollapsingMergeTree`
|
||||
|
||||
`SELECT` queries with `FINAL` are executed in parallel. The [max_final_threads](../../../operations/settings/settings.md#max-final-threads) setting limits the number of threads used.
|
||||
|
||||
There are drawbacks to using `FINAL` (see below).
|
||||
|
||||
### Drawbacks
|
||||
|
||||
Queries that use `FINAL` are executed slightly slower than similar queries that do not, because:
|
||||
Queries that use `FINAL` execute slightly slower than similar queries that do not use `FINAL` because:
|
||||
|
||||
- Data is merged during query execution.
|
||||
- Queries with `FINAL` read primary key columns in addition to the columns specified in the query.
|
||||
- Queries with `FINAL` may read primary key columns in addition to the columns specified in the query.
|
||||
|
||||
`FINAL` requires additional compute and memory resources, as the processing that normally would occur at merge time must occur in memory at the time of the query. However, using FINAL is sometimes necessary in order to produce accurate results, and is less expensive than running `OPTIMIZE` to force a merge. It is also sometimes possible to use different queries that assume the background processes of the `MergeTree` engine haven’t happened yet and deal with it by applying aggregation (for example, to discard duplicates). If you need to use FINAL in your queries in order to get the required results, then it is okay to do so but be aware of the additional processing required.
|
||||
`FINAL` requires additional compute and memory resources because the processing that normally would occur at merge time must occur in memory at the time of the query. However, using FINAL is sometimes necessary in order to produce accurate results (as data may not yet be fully merged). It is less expensive than running `OPTIMIZE` to force a merge.
|
||||
|
||||
As an alternative to using `FINAL`, it is sometimes possible to use different queries that assume the background processes of the `MergeTree` engine have not yet occurred and deal with it by applying an aggregation (for example, to discard duplicates). If you need to use `FINAL` in your queries in order to get the required results, it is okay to do so but be aware of the additional processing required.
|
||||
|
||||
`FINAL` can be applied automatically using [FINAL](../../../operations/settings/settings.md#final) setting to all tables in a query using a session or a user profile.
|
||||
|
||||
### Example Usage
|
||||
|
||||
**Using the `FINAL` keyword**
|
||||
|
||||
```sql
|
||||
SELECT x, y FROM mytable FINAL WHERE x > 1;
|
||||
```
|
||||
|
||||
**Using `FINAL` as a query-level setting**
|
||||
|
||||
```sql
|
||||
SELECT x, y FROM mytable WHERE x > 1 SETTINGS final = 1;
|
||||
```
|
||||
|
||||
**Using `FINAL` as a session-level setting**
|
||||
|
||||
```sql
|
||||
SET final = 1;
|
||||
SELECT x, y FROM mytable WHERE x > 1;
|
||||
```
|
||||
|
||||
## Implementation Details
|
||||
|
||||
If the `FROM` clause is omitted, data will be read from the `system.one` table.
|
||||
|
||||
@ -532,3 +532,15 @@ If there's a refresh in progress for the given view, interrupt and cancel it. Ot
|
||||
```sql
|
||||
SYSTEM CANCEL VIEW [db.]name
|
||||
```
|
||||
|
||||
### SYSTEM UNLOAD PRIMARY KEY
|
||||
|
||||
Unload the primary keys for the given table or for all tables.
|
||||
|
||||
```sql
|
||||
SYSTEM UNLOAD PRIMARY KEY [db.]name
|
||||
```
|
||||
|
||||
```sql
|
||||
SYSTEM UNLOAD PRIMARY KEY
|
||||
```
|
||||
@ -3447,17 +3447,6 @@ SELECT
|
||||
FROM fuse_tbl
|
||||
```
|
||||
|
||||
## allow_experimental_database_replicated {#allow_experimental_database_replicated}
|
||||
|
||||
Позволяет создавать базы данных с движком [Replicated](../../engines/database-engines/replicated.md).
|
||||
|
||||
Возможные значения:
|
||||
|
||||
- 0 — Disabled.
|
||||
- 1 — Enabled.
|
||||
|
||||
Значение по умолчанию: `0`.
|
||||
|
||||
## database_replicated_initial_query_timeout_sec {#database_replicated_initial_query_timeout_sec}
|
||||
|
||||
Устанавливает, как долго начальный DDL-запрос должен ждать, пока реплицированная база данных прецессирует предыдущие записи очереди DDL в секундах.
|
||||
|
||||
@ -5,7 +5,7 @@ sidebar_position: 106
|
||||
|
||||
# argMax {#agg-function-argmax}
|
||||
|
||||
Вычисляет значение `arg` при максимальном значении `val`.
|
||||
Вычисляет значение `arg` при максимальном значении `val`. Если несколько строк имеют одинаковое `val`, в которых равное значение является максимальным, то возвращаемое `arg` не является детерминированным. Обе части, arg и max, ведут себя как агрегатные функции, они обе пропускают Null во время обработки и возвращают не Null значения, если не Null значения доступны.
|
||||
|
||||
**Синтаксис**
|
||||
|
||||
@ -49,3 +49,60 @@ SELECT argMax(user, salary), argMax(tuple(user, salary), salary) FROM salary;
|
||||
│ director │ ('director',5000) │
|
||||
└──────────────────────┴─────────────────────────────────────┘
|
||||
```
|
||||
|
||||
**Дополнительный пример**
|
||||
|
||||
```sql
|
||||
CREATE TABLE test
|
||||
(
|
||||
a Nullable(String),
|
||||
b Nullable(Int64)
|
||||
)
|
||||
ENGINE = Memory AS
|
||||
SELECT *
|
||||
FROM VALUES(('a', 1), ('b', 2), ('c', 2), (NULL, 3), (NULL, NULL), ('d', NULL));
|
||||
|
||||
select * from test;
|
||||
┌─a────┬────b─┐
|
||||
│ a │ 1 │
|
||||
│ b │ 2 │
|
||||
│ c │ 2 │
|
||||
│ ᴺᵁᴸᴸ │ 3 │
|
||||
│ ᴺᵁᴸᴸ │ ᴺᵁᴸᴸ │
|
||||
│ d │ ᴺᵁᴸᴸ │
|
||||
└──────┴──────┘
|
||||
|
||||
SELECT argMax(a, b), max(b) FROM test;
|
||||
┌─argMax(a, b)─┬─max(b)─┐
|
||||
│ b │ 3 │ -- argMax = 'b' потому что это первое not Null значение, max(b) из другой строки!
|
||||
└──────────────┴────────┘
|
||||
|
||||
SELECT argMax(tuple(a), b) FROM test;
|
||||
┌─argMax(tuple(a), b)─┐
|
||||
│ (NULL) │ -- Кортеж `Tuple`, который содержит только `NULL` значения является не `NULL` кортежем, поэтому агрегатыне функции не будут пропускать эту строку с `NULL` значениями.
|
||||
└─────────────────────┘
|
||||
|
||||
SELECT (argMax((a, b), b) as t).1 argMaxA, t.2 argMaxB FROM test;
|
||||
┌─argMaxA─┬─argMaxB─┐
|
||||
│ ᴺᵁᴸᴸ │ 3 │ -- Вы можете использовать кортеж Tuple и получить оба значения для соответсвующего max(b).
|
||||
└─────────┴─────────┘
|
||||
|
||||
SELECT argMax(a, b), max(b) FROM test WHERE a IS NULL AND b IS NULL;
|
||||
┌─argMax(a, b)─┬─max(b)─┐
|
||||
│ ᴺᵁᴸᴸ │ ᴺᵁᴸᴸ │ -- Все агрегированные строки содержат хотя бы одно `NULL` значение, поэтому все строки пропускаются и результатом будет `NULL`.
|
||||
└──────────────┴────────┘
|
||||
|
||||
SELECT argMax(a, (b,a)) FROM test;
|
||||
┌─argMax(a, tuple(b, a))─┐
|
||||
│ c │ -- Есть две строки с b=2, кортеж `Tuple` в функции `Max` позволяет получить не первый `arg`.
|
||||
└────────────────────────┘
|
||||
|
||||
SELECT argMax(a, tuple(b)) FROM test;
|
||||
┌─argMax(a, tuple(b))─┐
|
||||
│ b │ -- Кортеж `Tuple` может использоваться в `Max`, чтобы не пропускать `NULL` значения в `Max`.
|
||||
└─────────────────────┘
|
||||
```
|
||||
|
||||
**Смотрите также**
|
||||
|
||||
- [Tuple](/docs/ru/sql-reference/data-types/tuple.md)
|
||||
|
||||
@ -918,11 +918,13 @@ bool Client::processWithFuzzing(const String & full_query)
|
||||
}
|
||||
|
||||
|
||||
void Client::printHelpMessage(const OptionsDescription & options_description)
|
||||
void Client::printHelpMessage(const OptionsDescription & options_description, bool verbose)
|
||||
{
|
||||
std::cout << options_description.main_description.value() << "\n";
|
||||
std::cout << options_description.external_description.value() << "\n";
|
||||
std::cout << options_description.hosts_and_ports_description.value() << "\n";
|
||||
if (verbose)
|
||||
std::cout << "All settings are documented at https://clickhouse.com/docs/en/operations/settings/settings.\n\n";
|
||||
std::cout << "In addition, --param_name=value can be specified for substitution of parameters for parametrized queries.\n";
|
||||
std::cout << "\nSee also: https://clickhouse.com/docs/en/integrations/sql-clients/cli\n";
|
||||
}
|
||||
|
||||
@ -25,7 +25,7 @@ protected:
|
||||
|
||||
String getName() const override { return "client"; }
|
||||
|
||||
void printHelpMessage(const OptionsDescription & options_description) override;
|
||||
void printHelpMessage(const OptionsDescription & options_description, bool verbose) override;
|
||||
|
||||
void addOptions(OptionsDescription & options_description) override;
|
||||
|
||||
|
||||
@ -729,6 +729,15 @@ int mainEntryClickHouseInstall(int argc, char ** argv)
|
||||
}
|
||||
}
|
||||
|
||||
/// Don't allow relative paths because install script may cd to / when installing
|
||||
/// And having path=./ may break the system
|
||||
if (log_path.is_relative())
|
||||
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Log path is relative: {}", log_path.string());
|
||||
if (data_path.is_relative())
|
||||
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Data path is relative: {}", data_path.string());
|
||||
if (pid_path.is_relative())
|
||||
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Pid path is relative: {}", pid_path.string());
|
||||
|
||||
/// Create directories for data and log.
|
||||
|
||||
if (fs::exists(log_path))
|
||||
|
||||
@ -121,9 +121,12 @@ if (BUILD_STANDALONE_KEEPER)
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/DiskType.cpp
|
||||
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/IObjectStorage.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataOperationsHolder.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataStorageFromPlainObjectStorageOperations.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataStorageFromPlainObjectStorage.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataStorageFromPlainRewritableObjectStorage.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataStorageFromDisk.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataFromDiskTransactionState.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataStorageTransactionState.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/DiskObjectStorageMetadata.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataStorageFromDiskTransactionOperations.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/DiskObjectStorage.cpp
|
||||
@ -137,6 +140,7 @@ if (BUILD_STANDALONE_KEEPER)
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/S3/S3Capabilities.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/S3/diskSettings.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/S3/DiskS3Utils.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/CommonPathPrefixKeyGenerator.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/ObjectStorageFactory.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/MetadataStorageFactory.cpp
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/../../src/Disks/ObjectStorages/RegisterDiskObjectStorage.cpp
|
||||
|
||||
@ -481,7 +481,6 @@ try
|
||||
registerFormats();
|
||||
|
||||
processConfig();
|
||||
adjustSettings();
|
||||
initTTYBuffer(toProgressOption(config().getString("progress", "default")));
|
||||
ASTAlterCommand::setFormatAlterCommandsWithParentheses(true);
|
||||
|
||||
@ -689,6 +688,7 @@ void LocalServer::processConfig()
|
||||
/// NOTE: it is important to apply any overrides before
|
||||
/// setDefaultProfiles() calls since it will copy current context (i.e.
|
||||
/// there is separate context for Buffer tables).
|
||||
adjustSettings();
|
||||
applySettingsOverridesForLocal(global_context);
|
||||
applyCmdOptions(global_context);
|
||||
|
||||
@ -774,10 +774,12 @@ void LocalServer::processConfig()
|
||||
}
|
||||
|
||||
|
||||
void LocalServer::printHelpMessage([[maybe_unused]] const OptionsDescription & options_description)
|
||||
void LocalServer::printHelpMessage(const OptionsDescription & options_description, bool verbose)
|
||||
{
|
||||
std::cout << getHelpHeader() << "\n";
|
||||
std::cout << options_description.main_description.value() << "\n";
|
||||
if (verbose)
|
||||
std::cout << "All settings are documented at https://clickhouse.com/docs/en/operations/settings/settings.\n\n";
|
||||
std::cout << getHelpFooter() << "\n";
|
||||
std::cout << "In addition, --param_name=value can be specified for substitution of parameters for parametrized queries.\n";
|
||||
std::cout << "\nSee also: https://clickhouse.com/docs/en/operations/utilities/clickhouse-local/\n";
|
||||
|
||||
@ -36,7 +36,7 @@ protected:
|
||||
|
||||
String getName() const override { return "local"; }
|
||||
|
||||
void printHelpMessage(const OptionsDescription & options_description) override;
|
||||
void printHelpMessage(const OptionsDescription & options_description, bool verbose) override;
|
||||
|
||||
void addOptions(OptionsDescription & options_description) override;
|
||||
|
||||
|
||||
@ -280,11 +280,11 @@ void AccessControl::setUpFromMainConfig(const Poco::Util::AbstractConfiguration
|
||||
|
||||
/// Optional improvements in access control system.
|
||||
/// The default values are false because we need to be compatible with earlier access configurations
|
||||
setEnabledUsersWithoutRowPoliciesCanReadRows(config_.getBool("access_control_improvements.users_without_row_policies_can_read_rows", false));
|
||||
setOnClusterQueriesRequireClusterGrant(config_.getBool("access_control_improvements.on_cluster_queries_require_cluster_grant", false));
|
||||
setSelectFromSystemDatabaseRequiresGrant(config_.getBool("access_control_improvements.select_from_system_db_requires_grant", false));
|
||||
setSelectFromInformationSchemaRequiresGrant(config_.getBool("access_control_improvements.select_from_information_schema_requires_grant", false));
|
||||
setSettingsConstraintsReplacePrevious(config_.getBool("access_control_improvements.settings_constraints_replace_previous", false));
|
||||
setEnabledUsersWithoutRowPoliciesCanReadRows(config_.getBool("access_control_improvements.users_without_row_policies_can_read_rows", true));
|
||||
setOnClusterQueriesRequireClusterGrant(config_.getBool("access_control_improvements.on_cluster_queries_require_cluster_grant", true));
|
||||
setSelectFromSystemDatabaseRequiresGrant(config_.getBool("access_control_improvements.select_from_system_db_requires_grant", true));
|
||||
setSelectFromInformationSchemaRequiresGrant(config_.getBool("access_control_improvements.select_from_information_schema_requires_grant", true));
|
||||
setSettingsConstraintsReplacePrevious(config_.getBool("access_control_improvements.settings_constraints_replace_previous", true));
|
||||
setTableEnginesRequireGrant(config_.getBool("access_control_improvements.table_engines_require_grant", false));
|
||||
|
||||
addStoragesFromMainConfig(config_, config_path_, get_zookeeper_function_);
|
||||
|
||||
@ -210,6 +210,7 @@ enum class AccessType
|
||||
M(SYSTEM_FAILPOINT, "SYSTEM ENABLE FAILPOINT, SYSTEM DISABLE FAILPOINT, SYSTEM WAIT FAILPOINT", GLOBAL, SYSTEM) \
|
||||
M(SYSTEM_LISTEN, "SYSTEM START LISTEN, SYSTEM STOP LISTEN", GLOBAL, SYSTEM) \
|
||||
M(SYSTEM_JEMALLOC, "SYSTEM JEMALLOC PURGE, SYSTEM JEMALLOC ENABLE PROFILE, SYSTEM JEMALLOC DISABLE PROFILE, SYSTEM JEMALLOC FLUSH PROFILE", GLOBAL, SYSTEM) \
|
||||
M(SYSTEM_UNLOAD_PRIMARY_KEY, "SYSTEM UNLOAD PRIMARY KEY", TABLE, SYSTEM) \
|
||||
M(SYSTEM, "", GROUP, ALL) /* allows to execute SYSTEM {SHUTDOWN|RELOAD CONFIG|...} */ \
|
||||
\
|
||||
M(dictGet, "dictHas, dictGetHierarchy, dictIsIn", DICTIONARY, ALL) /* allows to execute functions dictGet(), dictHas(), dictGetHierarchy(), dictIsIn() */\
|
||||
|
||||
@ -53,8 +53,9 @@ TEST(AccessRights, Union)
|
||||
"SHOW ROW POLICIES, SYSTEM MERGES, SYSTEM TTL MERGES, SYSTEM FETCHES, "
|
||||
"SYSTEM MOVES, SYSTEM PULLING REPLICATION LOG, SYSTEM CLEANUP, SYSTEM VIEWS, SYSTEM SENDS, SYSTEM REPLICATION QUEUES, SYSTEM VIRTUAL PARTS UPDATE, "
|
||||
"SYSTEM DROP REPLICA, SYSTEM SYNC REPLICA, SYSTEM RESTART REPLICA, "
|
||||
"SYSTEM RESTORE REPLICA, SYSTEM WAIT LOADING PARTS, SYSTEM SYNC DATABASE REPLICA, SYSTEM FLUSH DISTRIBUTED, dictGet ON db1.*, "
|
||||
"GRANT TABLE ENGINE ON db1, GRANT SET DEFINER ON db1, GRANT NAMED COLLECTION ADMIN ON db1");
|
||||
"SYSTEM RESTORE REPLICA, SYSTEM WAIT LOADING PARTS, SYSTEM SYNC DATABASE REPLICA, SYSTEM FLUSH DISTRIBUTED, "
|
||||
"SYSTEM UNLOAD PRIMARY KEY, dictGet ON db1.*, GRANT TABLE ENGINE ON db1, "
|
||||
"GRANT SET DEFINER ON db1, GRANT NAMED COLLECTION ADMIN ON db1");
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -56,7 +56,9 @@ void IdentifierNode::updateTreeHashImpl(HashState & state, CompareOptions) const
|
||||
|
||||
QueryTreeNodePtr IdentifierNode::cloneImpl() const
|
||||
{
|
||||
return std::make_shared<IdentifierNode>(identifier);
|
||||
auto clone_identifier_node = std::make_shared<IdentifierNode>(identifier);
|
||||
clone_identifier_node->table_expression_modifiers = table_expression_modifiers;
|
||||
return clone_identifier_node;
|
||||
}
|
||||
|
||||
ASTPtr IdentifierNode::toASTImpl(const ConvertToASTOptions & /* options */) const
|
||||
|
||||
@ -1,9 +1,10 @@
|
||||
#include <Analyzer/Passes/QueryAnalysisPass.h>
|
||||
|
||||
#include <boost/algorithm/string.hpp>
|
||||
|
||||
#include <Common/checkStackSize.h>
|
||||
#include <Common/NamePrompter.h>
|
||||
#include <Common/ProfileEvents.h>
|
||||
#include <Analyzer/FunctionSecretArgumentsFinderTreeNode.h>
|
||||
|
||||
#include <IO/WriteBuffer.h>
|
||||
#include <IO/WriteHelpers.h>
|
||||
@ -81,8 +82,8 @@
|
||||
#include <Analyzer/QueryTreeBuilder.h>
|
||||
#include <Analyzer/IQueryTreeNode.h>
|
||||
#include <Analyzer/Identifier.h>
|
||||
|
||||
#include <boost/algorithm/string.hpp>
|
||||
#include <Analyzer/FunctionSecretArgumentsFinderTreeNode.h>
|
||||
#include <Analyzer/RecursiveCTE.h>
|
||||
|
||||
namespace ProfileEvents
|
||||
{
|
||||
@ -740,7 +741,7 @@ struct IdentifierResolveScope
|
||||
/// Identifier lookup to result
|
||||
std::unordered_map<IdentifierLookup, IdentifierResolveState, IdentifierLookupHash> identifier_lookup_to_resolve_state;
|
||||
|
||||
/// Lambda argument can be expression like constant, column, or it can be function
|
||||
/// Argument can be expression like constant, column, function or table expression
|
||||
std::unordered_map<std::string, QueryTreeNodePtr> expression_argument_name_to_node;
|
||||
|
||||
/// Alias name to query expression node
|
||||
@ -1464,7 +1465,8 @@ private:
|
||||
/// Lambdas that are currently in resolve process
|
||||
std::unordered_set<IQueryTreeNode *> lambdas_in_resolve_process;
|
||||
|
||||
std::unordered_set<std::string_view> cte_in_resolve_process;
|
||||
/// CTEs that are currently in resolve process
|
||||
std::unordered_set<std::string_view> ctes_in_resolve_process;
|
||||
|
||||
/// Function name to user defined lambda map
|
||||
std::unordered_map<std::string, QueryTreeNodePtr> function_name_to_user_defined_lambda;
|
||||
@ -2148,9 +2150,9 @@ void QueryAnalyzer::evaluateScalarSubqueryIfNeeded(QueryTreeNodePtr & node, Iden
|
||||
else
|
||||
{
|
||||
/** Make unique column names for tuple.
|
||||
*
|
||||
* Example: SELECT (SELECT 2 AS x, x)
|
||||
*/
|
||||
*
|
||||
* Example: SELECT (SELECT 2 AS x, x)
|
||||
*/
|
||||
makeUniqueColumnNamesInBlock(block);
|
||||
|
||||
scalar_block.insert({
|
||||
@ -3981,6 +3983,9 @@ IdentifierResolveResult QueryAnalyzer::tryResolveIdentifierInParentScopes(const
|
||||
auto * union_node = resolved_identifier->as<UnionNode>();
|
||||
|
||||
bool is_cte = (subquery_node && subquery_node->isCTE()) || (union_node && union_node->isCTE());
|
||||
bool is_table_from_expression_arguments = lookup_result.resolve_place == IdentifierResolvePlace::EXPRESSION_ARGUMENTS &&
|
||||
resolved_identifier->getNodeType() == QueryTreeNodeType::TABLE;
|
||||
bool is_valid_table_expression = is_cte || is_table_from_expression_arguments;
|
||||
|
||||
/** From parent scopes we can resolve table identifiers only as CTE.
|
||||
* Example: SELECT (SELECT 1 FROM a) FROM test_table AS a;
|
||||
@ -3988,14 +3993,10 @@ IdentifierResolveResult QueryAnalyzer::tryResolveIdentifierInParentScopes(const
|
||||
* During child scope table identifier resolve a, table node test_table with alias a from parent scope
|
||||
* is invalid.
|
||||
*/
|
||||
if (identifier_lookup.isTableExpressionLookup() && !is_cte)
|
||||
if (identifier_lookup.isTableExpressionLookup() && !is_valid_table_expression)
|
||||
continue;
|
||||
|
||||
if (is_cte)
|
||||
{
|
||||
return lookup_result;
|
||||
}
|
||||
else if (resolved_identifier->as<ConstantNode>())
|
||||
if (is_valid_table_expression || resolved_identifier->as<ConstantNode>())
|
||||
{
|
||||
return lookup_result;
|
||||
}
|
||||
@ -4071,13 +4072,9 @@ IdentifierResolveResult QueryAnalyzer::tryResolveIdentifier(const IdentifierLook
|
||||
|
||||
if (it->second.resolve_result.isResolved() &&
|
||||
scope.use_identifier_lookup_to_result_cache &&
|
||||
!scope.non_cached_identifier_lookups_during_expression_resolve.contains(identifier_lookup))
|
||||
{
|
||||
if (!it->second.resolve_result.isResolvedFromCTEs() || !cte_in_resolve_process.contains(identifier_lookup.identifier.getFullName()))
|
||||
{
|
||||
return it->second.resolve_result;
|
||||
}
|
||||
}
|
||||
!scope.non_cached_identifier_lookups_during_expression_resolve.contains(identifier_lookup) &&
|
||||
(!it->second.resolve_result.isResolvedFromCTEs() || !ctes_in_resolve_process.contains(identifier_lookup.identifier.getFullName())))
|
||||
return it->second.resolve_result;
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -4150,7 +4147,7 @@ IdentifierResolveResult QueryAnalyzer::tryResolveIdentifier(const IdentifierLook
|
||||
/// To accomplish this behaviour it's not allowed to resolve identifiers to
|
||||
/// CTE that is being resolved.
|
||||
if (cte_query_node_it != scope.cte_name_to_query_node.end()
|
||||
&& !cte_in_resolve_process.contains(full_name))
|
||||
&& !ctes_in_resolve_process.contains(full_name))
|
||||
{
|
||||
resolve_result.resolved_identifier = cte_query_node_it->second;
|
||||
resolve_result.resolve_place = IdentifierResolvePlace::CTE;
|
||||
@ -6296,14 +6293,14 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(QueryTreeNodePtr & node, Id
|
||||
///
|
||||
/// In this example argument of function `in` is being resolve here. If CTE `test1` is not forbidden,
|
||||
/// `test1` is resolved to CTE (not to the table) in `initializeQueryJoinTreeNode` function.
|
||||
cte_in_resolve_process.insert(cte_name);
|
||||
ctes_in_resolve_process.insert(cte_name);
|
||||
|
||||
if (subquery_node)
|
||||
resolveQuery(resolved_identifier_node, subquery_scope);
|
||||
else
|
||||
resolveUnion(resolved_identifier_node, subquery_scope);
|
||||
|
||||
cte_in_resolve_process.erase(cte_name);
|
||||
ctes_in_resolve_process.erase(cte_name);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -7874,7 +7871,7 @@ void QueryAnalyzer::resolveQuery(const QueryTreeNodePtr & query_node, Identifier
|
||||
auto & query_node_typed = query_node->as<QueryNode &>();
|
||||
|
||||
if (query_node_typed.isCTE())
|
||||
cte_in_resolve_process.insert(query_node_typed.getCTEName());
|
||||
ctes_in_resolve_process.insert(query_node_typed.getCTEName());
|
||||
|
||||
bool is_rollup_or_cube = query_node_typed.isGroupByWithRollup() || query_node_typed.isGroupByWithCube();
|
||||
|
||||
@ -7956,7 +7953,6 @@ void QueryAnalyzer::resolveQuery(const QueryTreeNodePtr & query_node, Identifier
|
||||
auto * union_node = node->as<UnionNode>();
|
||||
|
||||
bool subquery_is_cte = (subquery_node && subquery_node->isCTE()) || (union_node && union_node->isCTE());
|
||||
|
||||
if (!subquery_is_cte)
|
||||
continue;
|
||||
|
||||
@ -8213,7 +8209,7 @@ void QueryAnalyzer::resolveQuery(const QueryTreeNodePtr & query_node, Identifier
|
||||
query_node_typed.resolveProjectionColumns(std::move(projection_columns));
|
||||
|
||||
if (query_node_typed.isCTE())
|
||||
cte_in_resolve_process.erase(query_node_typed.getCTEName());
|
||||
ctes_in_resolve_process.erase(query_node_typed.getCTEName());
|
||||
}
|
||||
|
||||
void QueryAnalyzer::resolveUnion(const QueryTreeNodePtr & union_node, IdentifierResolveScope & scope)
|
||||
@ -8221,13 +8217,56 @@ void QueryAnalyzer::resolveUnion(const QueryTreeNodePtr & union_node, Identifier
|
||||
auto & union_node_typed = union_node->as<UnionNode &>();
|
||||
|
||||
if (union_node_typed.isCTE())
|
||||
cte_in_resolve_process.insert(union_node_typed.getCTEName());
|
||||
ctes_in_resolve_process.insert(union_node_typed.getCTEName());
|
||||
|
||||
auto & queries_nodes = union_node_typed.getQueries().getNodes();
|
||||
|
||||
for (auto & query_node : queries_nodes)
|
||||
std::optional<RecursiveCTETable> recursive_cte_table;
|
||||
TableNodePtr recursive_cte_table_node;
|
||||
|
||||
if (union_node_typed.isCTE() && union_node_typed.isRecursiveCTE())
|
||||
{
|
||||
auto & non_recursive_query = queries_nodes[0];
|
||||
bool non_recursive_query_is_query_node = non_recursive_query->getNodeType() == QueryTreeNodeType::QUERY;
|
||||
auto & non_recursive_query_mutable_context = non_recursive_query_is_query_node ? non_recursive_query->as<QueryNode &>().getMutableContext()
|
||||
: non_recursive_query->as<UnionNode &>().getMutableContext();
|
||||
|
||||
IdentifierResolveScope non_recursive_subquery_scope(non_recursive_query, &scope /*parent_scope*/);
|
||||
non_recursive_subquery_scope.subquery_depth = scope.subquery_depth + 1;
|
||||
|
||||
if (non_recursive_query_is_query_node)
|
||||
resolveQuery(non_recursive_query, non_recursive_subquery_scope);
|
||||
else
|
||||
resolveUnion(non_recursive_query, non_recursive_subquery_scope);
|
||||
|
||||
auto temporary_table_columns = non_recursive_query_is_query_node
|
||||
? non_recursive_query->as<QueryNode &>().getProjectionColumns()
|
||||
: non_recursive_query->as<UnionNode &>().computeProjectionColumns();
|
||||
|
||||
auto temporary_table_holder = std::make_shared<TemporaryTableHolder>(
|
||||
non_recursive_query_mutable_context,
|
||||
ColumnsDescription{NamesAndTypesList{temporary_table_columns.begin(), temporary_table_columns.end()}},
|
||||
ConstraintsDescription{},
|
||||
nullptr /*query*/,
|
||||
true /*create_for_global_subquery*/);
|
||||
auto temporary_table_storage = temporary_table_holder->getTable();
|
||||
|
||||
recursive_cte_table_node = std::make_shared<TableNode>(temporary_table_storage, non_recursive_query_mutable_context);
|
||||
recursive_cte_table_node->setTemporaryTableName(union_node_typed.getCTEName());
|
||||
|
||||
recursive_cte_table.emplace(std::move(temporary_table_holder), std::move(temporary_table_storage), std::move(temporary_table_columns));
|
||||
}
|
||||
|
||||
size_t queries_nodes_size = queries_nodes.size();
|
||||
for (size_t i = recursive_cte_table.has_value(); i < queries_nodes_size; ++i)
|
||||
{
|
||||
auto & query_node = queries_nodes[i];
|
||||
|
||||
IdentifierResolveScope subquery_scope(query_node, &scope /*parent_scope*/);
|
||||
|
||||
if (recursive_cte_table_node)
|
||||
subquery_scope.expression_argument_name_to_node[union_node_typed.getCTEName()] = recursive_cte_table_node;
|
||||
|
||||
auto query_node_type = query_node->getNodeType();
|
||||
|
||||
if (query_node_type == QueryTreeNodeType::QUERY)
|
||||
@ -8247,8 +8286,19 @@ void QueryAnalyzer::resolveUnion(const QueryTreeNodePtr & union_node, Identifier
|
||||
}
|
||||
}
|
||||
|
||||
if (recursive_cte_table && isStorageUsedInTree(recursive_cte_table->storage, union_node.get()))
|
||||
{
|
||||
if (union_node_typed.getUnionMode() != SelectUnionMode::UNION_ALL)
|
||||
throw Exception(ErrorCodes::UNSUPPORTED_METHOD,
|
||||
"Recursive CTE subquery {} with {} union mode is unsupported, only UNION ALL union mode is supported",
|
||||
union_node_typed.formatASTForErrorMessage(),
|
||||
toString(union_node_typed.getUnionMode()));
|
||||
|
||||
union_node_typed.setRecursiveCTETable(std::move(*recursive_cte_table));
|
||||
}
|
||||
|
||||
if (union_node_typed.isCTE())
|
||||
cte_in_resolve_process.erase(union_node_typed.getCTEName());
|
||||
ctes_in_resolve_process.erase(union_node_typed.getCTEName());
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -10,9 +10,10 @@
|
||||
|
||||
#include <Interpreters/Context.h>
|
||||
|
||||
#include <Analyzer/InDepthQueryTreeVisitor.h>
|
||||
#include <Analyzer/ConstantNode.h>
|
||||
#include <Analyzer/FunctionNode.h>
|
||||
#include <Analyzer/InDepthQueryTreeVisitor.h>
|
||||
#include <Analyzer/Utils.h>
|
||||
|
||||
namespace DB
|
||||
{
|
||||
@ -51,13 +52,25 @@ public:
|
||||
{
|
||||
const auto & second_const_value = second_const_node->getValue();
|
||||
if (second_const_value.isNull()
|
||||
|| (lower_name == "sum" && isInt64OrUInt64FieldType(second_const_value.getType()) && second_const_value.get<UInt64>() == 0))
|
||||
|| (lower_name == "sum" && isInt64OrUInt64FieldType(second_const_value.getType()) && second_const_value.get<UInt64>() == 0
|
||||
&& !if_node->getResultType()->isNullable()))
|
||||
{
|
||||
/// avg(if(cond, a, null)) -> avgIf(a, cond)
|
||||
/// avg(if(cond, a, null)) -> avgIf(a::ResultTypeIf, cond)
|
||||
/// avg(if(cond, nullable_a, null)) -> avgIf(nullable_a, cond)
|
||||
/// sum(if(cond, a, 0)) -> sumIf(a, cond)
|
||||
function_arguments_nodes.resize(2);
|
||||
function_arguments_nodes[0] = std::move(if_arguments_nodes[1]);
|
||||
function_arguments_nodes[1] = std::move(if_arguments_nodes[0]);
|
||||
/// sum(if(cond, nullable_a, 0)) **is not** equivalent to sumIfOrNull(cond, nullable_a) as
|
||||
/// it changes the output when no rows pass the condition (from 0 to NULL)
|
||||
|
||||
QueryTreeNodes new_arguments{2};
|
||||
|
||||
/// We need to preserve the output type from if()
|
||||
if (if_arguments_nodes[1]->getResultType()->getName() != if_node->getResultType()->getName())
|
||||
new_arguments[0] = createCastFunction(std::move(if_arguments_nodes[1]), if_node->getResultType(), getContext());
|
||||
else
|
||||
new_arguments[0] = std::move(if_arguments_nodes[1]);
|
||||
|
||||
new_arguments[1] = std::move(if_arguments_nodes[0]);
|
||||
function_arguments_nodes = std::move(new_arguments);
|
||||
resolveAsAggregateFunctionWithIf(
|
||||
*function_node, {function_arguments_nodes[0]->getResultType(), function_arguments_nodes[1]->getResultType()});
|
||||
}
|
||||
@ -66,19 +79,28 @@ public:
|
||||
{
|
||||
const auto & first_const_value = first_const_node->getValue();
|
||||
if (first_const_value.isNull()
|
||||
|| (lower_name == "sum" && isInt64OrUInt64FieldType(first_const_value.getType()) && first_const_value.get<UInt64>() == 0))
|
||||
|| (lower_name == "sum" && isInt64OrUInt64FieldType(first_const_value.getType()) && first_const_value.get<UInt64>() == 0
|
||||
&& !if_node->getResultType()->isNullable()))
|
||||
{
|
||||
/// avg(if(cond, null, a) -> avgIf(a, !cond))
|
||||
/// avg(if(cond, null, a) -> avgIf(a::ResultTypeIf, !cond))
|
||||
/// sum(if(cond, 0, a) -> sumIf(a, !cond))
|
||||
/// sum(if(cond, 0, nullable_a) **is not** sumIf(a, !cond)) -> Same as above
|
||||
|
||||
QueryTreeNodes new_arguments{2};
|
||||
|
||||
if (if_arguments_nodes[2]->getResultType()->getName() != if_node->getResultType()->getName())
|
||||
new_arguments[0] = createCastFunction(std::move(if_arguments_nodes[2]), if_node->getResultType(), getContext());
|
||||
else
|
||||
new_arguments[0] = std::move(if_arguments_nodes[2]);
|
||||
|
||||
auto not_function = std::make_shared<FunctionNode>("not");
|
||||
auto & not_function_arguments = not_function->getArguments().getNodes();
|
||||
not_function_arguments.push_back(std::move(if_arguments_nodes[0]));
|
||||
not_function->resolveAsFunction(
|
||||
FunctionFactory::instance().get("not", getContext())->build(not_function->getArgumentColumns()));
|
||||
new_arguments[1] = std::move(not_function);
|
||||
|
||||
function_arguments_nodes.resize(2);
|
||||
function_arguments_nodes[0] = std::move(if_arguments_nodes[2]);
|
||||
function_arguments_nodes[1] = std::move(not_function);
|
||||
function_arguments_nodes = std::move(new_arguments);
|
||||
resolveAsAggregateFunctionWithIf(
|
||||
*function_node, {function_arguments_nodes[0]->getResultType(), function_arguments_nodes[1]->getResultType()});
|
||||
}
|
||||
@ -90,13 +112,9 @@ private:
|
||||
{
|
||||
auto result_type = function_node.getResultType();
|
||||
|
||||
std::string suffix = "If";
|
||||
if (result_type->isNullable())
|
||||
suffix = "OrNullIf";
|
||||
|
||||
AggregateFunctionProperties properties;
|
||||
auto aggregate_function = AggregateFunctionFactory::instance().get(
|
||||
function_node.getFunctionName() + suffix,
|
||||
function_node.getFunctionName() + "If",
|
||||
function_node.getNullsAction(),
|
||||
argument_types,
|
||||
function_node.getAggregateFunction()->getParameters(),
|
||||
|
||||
@ -14,12 +14,14 @@
|
||||
|
||||
#include <Parsers/ASTExpressionList.h>
|
||||
#include <Parsers/ASTTablesInSelectQuery.h>
|
||||
#include <Parsers/ASTWithElement.h>
|
||||
#include <Parsers/ASTSubquery.h>
|
||||
#include <Parsers/ASTSelectQuery.h>
|
||||
#include <Parsers/ASTSelectWithUnionQuery.h>
|
||||
#include <Parsers/ASTSetQuery.h>
|
||||
|
||||
#include <Analyzer/Utils.h>
|
||||
#include <Analyzer/UnionNode.h>
|
||||
|
||||
namespace DB
|
||||
{
|
||||
@ -107,6 +109,9 @@ void QueryNode::dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, s
|
||||
if (is_cte)
|
||||
buffer << ", is_cte: " << is_cte;
|
||||
|
||||
if (is_recursive_with)
|
||||
buffer << ", is_recursive_with: " << is_recursive_with;
|
||||
|
||||
if (is_distinct)
|
||||
buffer << ", is_distinct: " << is_distinct;
|
||||
|
||||
@ -259,6 +264,7 @@ bool QueryNode::isEqualImpl(const IQueryTreeNode & rhs, CompareOptions) const
|
||||
|
||||
return is_subquery == rhs_typed.is_subquery &&
|
||||
is_cte == rhs_typed.is_cte &&
|
||||
is_recursive_with == rhs_typed.is_recursive_with &&
|
||||
is_distinct == rhs_typed.is_distinct &&
|
||||
is_limit_with_ties == rhs_typed.is_limit_with_ties &&
|
||||
is_group_by_with_totals == rhs_typed.is_group_by_with_totals &&
|
||||
@ -291,6 +297,7 @@ void QueryNode::updateTreeHashImpl(HashState & state, CompareOptions) const
|
||||
state.update(projection_column_type_name);
|
||||
}
|
||||
|
||||
state.update(is_recursive_with);
|
||||
state.update(is_distinct);
|
||||
state.update(is_limit_with_ties);
|
||||
state.update(is_group_by_with_totals);
|
||||
@ -317,19 +324,20 @@ QueryTreeNodePtr QueryNode::cloneImpl() const
|
||||
{
|
||||
auto result_query_node = std::make_shared<QueryNode>(context);
|
||||
|
||||
result_query_node->is_subquery = is_subquery;
|
||||
result_query_node->is_cte = is_cte;
|
||||
result_query_node->is_distinct = is_distinct;
|
||||
result_query_node->is_limit_with_ties = is_limit_with_ties;
|
||||
result_query_node->is_group_by_with_totals = is_group_by_with_totals;
|
||||
result_query_node->is_group_by_with_rollup = is_group_by_with_rollup;
|
||||
result_query_node->is_group_by_with_cube = is_group_by_with_cube;
|
||||
result_query_node->is_subquery = is_subquery;
|
||||
result_query_node->is_cte = is_cte;
|
||||
result_query_node->is_recursive_with = is_recursive_with;
|
||||
result_query_node->is_distinct = is_distinct;
|
||||
result_query_node->is_limit_with_ties = is_limit_with_ties;
|
||||
result_query_node->is_group_by_with_totals = is_group_by_with_totals;
|
||||
result_query_node->is_group_by_with_rollup = is_group_by_with_rollup;
|
||||
result_query_node->is_group_by_with_cube = is_group_by_with_cube;
|
||||
result_query_node->is_group_by_with_grouping_sets = is_group_by_with_grouping_sets;
|
||||
result_query_node->is_group_by_all = is_group_by_all;
|
||||
result_query_node->is_order_by_all = is_order_by_all;
|
||||
result_query_node->cte_name = cte_name;
|
||||
result_query_node->projection_columns = projection_columns;
|
||||
result_query_node->settings_changes = settings_changes;
|
||||
result_query_node->is_group_by_all = is_group_by_all;
|
||||
result_query_node->is_order_by_all = is_order_by_all;
|
||||
result_query_node->cte_name = cte_name;
|
||||
result_query_node->projection_columns = projection_columns;
|
||||
result_query_node->settings_changes = settings_changes;
|
||||
|
||||
return result_query_node;
|
||||
}
|
||||
@ -337,6 +345,7 @@ QueryTreeNodePtr QueryNode::cloneImpl() const
|
||||
ASTPtr QueryNode::toASTImpl(const ConvertToASTOptions & options) const
|
||||
{
|
||||
auto select_query = std::make_shared<ASTSelectQuery>();
|
||||
select_query->recursive_with = is_recursive_with;
|
||||
select_query->distinct = is_distinct;
|
||||
select_query->limit_with_ties = is_limit_with_ties;
|
||||
select_query->group_by_with_totals = is_group_by_with_totals;
|
||||
@ -347,7 +356,41 @@ ASTPtr QueryNode::toASTImpl(const ConvertToASTOptions & options) const
|
||||
select_query->order_by_all = is_order_by_all;
|
||||
|
||||
if (hasWith())
|
||||
select_query->setExpression(ASTSelectQuery::Expression::WITH, getWith().toAST(options));
|
||||
{
|
||||
const auto & with = getWith();
|
||||
auto expression_list_ast = std::make_shared<ASTExpressionList>();
|
||||
expression_list_ast->children.reserve(with.getNodes().size());
|
||||
|
||||
for (const auto & with_node : with)
|
||||
{
|
||||
auto with_node_ast = with_node->toAST(options);
|
||||
expression_list_ast->children.push_back(with_node_ast);
|
||||
|
||||
const auto * with_query_node = with_node->as<QueryNode>();
|
||||
const auto * with_union_node = with_node->as<UnionNode>();
|
||||
if (!with_query_node && !with_union_node)
|
||||
continue;
|
||||
|
||||
bool is_with_node_cte = with_query_node ? with_query_node->isCTE() : with_union_node->isCTE();
|
||||
if (!is_with_node_cte)
|
||||
continue;
|
||||
|
||||
const auto & with_node_cte_name = with_query_node ? with_query_node->cte_name : with_union_node->getCTEName();
|
||||
|
||||
auto * with_node_ast_subquery = with_node_ast->as<ASTSubquery>();
|
||||
if (with_node_ast_subquery)
|
||||
with_node_ast_subquery->cte_name = "";
|
||||
|
||||
auto with_element_ast = std::make_shared<ASTWithElement>();
|
||||
with_element_ast->name = with_node_cte_name;
|
||||
with_element_ast->subquery = std::move(with_node_ast);
|
||||
with_element_ast->children.push_back(with_element_ast->subquery);
|
||||
|
||||
expression_list_ast->children.back() = std::move(with_element_ast);
|
||||
}
|
||||
|
||||
select_query->setExpression(ASTSelectQuery::Expression::WITH, std::move(expression_list_ast));
|
||||
}
|
||||
|
||||
auto projection_ast = getProjection().toAST(options);
|
||||
auto & projection_expression_list_ast = projection_ast->as<ASTExpressionList &>();
|
||||
|
||||
@ -140,6 +140,18 @@ public:
|
||||
cte_name = std::move(cte_name_value);
|
||||
}
|
||||
|
||||
/// Returns true if query node has RECURSIVE WITH, false otherwise
|
||||
bool isRecursiveWith() const
|
||||
{
|
||||
return is_recursive_with;
|
||||
}
|
||||
|
||||
/// Set query node RECURSIVE WITH value
|
||||
void setIsRecursiveWith(bool is_recursive_with_value)
|
||||
{
|
||||
is_recursive_with = is_recursive_with_value;
|
||||
}
|
||||
|
||||
/// Returns true if query node has DISTINCT, false otherwise
|
||||
bool isDistinct() const
|
||||
{
|
||||
@ -618,6 +630,7 @@ protected:
|
||||
private:
|
||||
bool is_subquery = false;
|
||||
bool is_cte = false;
|
||||
bool is_recursive_with = false;
|
||||
bool is_distinct = false;
|
||||
bool is_limit_with_ties = false;
|
||||
bool is_group_by_with_totals = false;
|
||||
|
||||
@ -271,6 +271,7 @@ QueryTreeNodePtr QueryTreeBuilder::buildSelectExpression(const ASTPtr & select_q
|
||||
current_query_tree->setIsSubquery(is_subquery);
|
||||
current_query_tree->setIsCTE(!cte_name.empty());
|
||||
current_query_tree->setCTEName(cte_name);
|
||||
current_query_tree->setIsRecursiveWith(select_query_typed.recursive_with);
|
||||
current_query_tree->setIsDistinct(select_query_typed.distinct);
|
||||
current_query_tree->setIsLimitWithTies(select_query_typed.limit_with_ties);
|
||||
current_query_tree->setIsGroupByWithTotals(select_query_typed.group_by_with_totals);
|
||||
@ -287,8 +288,22 @@ QueryTreeNodePtr QueryTreeBuilder::buildSelectExpression(const ASTPtr & select_q
|
||||
|
||||
auto select_with_list = select_query_typed.with();
|
||||
if (select_with_list)
|
||||
{
|
||||
current_query_tree->getWithNode() = buildExpressionList(select_with_list, current_context);
|
||||
|
||||
if (select_query_typed.recursive_with)
|
||||
{
|
||||
for (auto & with_node : current_query_tree->getWith().getNodes())
|
||||
{
|
||||
auto * with_union_node = with_node->as<UnionNode>();
|
||||
if (!with_union_node)
|
||||
continue;
|
||||
|
||||
with_union_node->setIsRecursiveCTE(true);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
auto select_expression_list = select_query_typed.select();
|
||||
if (select_expression_list)
|
||||
current_query_tree->getProjectionNode() = buildExpressionList(select_expression_list, current_context);
|
||||
|
||||
@ -165,7 +165,6 @@ private:
|
||||
|
||||
/** ClickHouse query tree pass manager.
|
||||
*
|
||||
* TODO: Support setting optimize_monotonous_functions_in_order_by.
|
||||
* TODO: Add optimizations based on function semantics. Example: SELECT * FROM test_table WHERE id != id. (id is not nullable column).
|
||||
*/
|
||||
|
||||
@ -259,8 +258,6 @@ void addQueryTreePasses(QueryTreePassManager & manager, bool only_analyze)
|
||||
manager.addPass(std::make_unique<RewriteSumFunctionWithSumAndCountPass>());
|
||||
manager.addPass(std::make_unique<CountDistinctPass>());
|
||||
manager.addPass(std::make_unique<UniqToCountPass>());
|
||||
manager.addPass(std::make_unique<RewriteAggregateFunctionWithIfPass>());
|
||||
manager.addPass(std::make_unique<SumIfToCountIfPass>());
|
||||
manager.addPass(std::make_unique<RewriteArrayExistsToHasPass>());
|
||||
manager.addPass(std::make_unique<NormalizeCountVariantsPass>());
|
||||
|
||||
@ -277,9 +274,12 @@ void addQueryTreePasses(QueryTreePassManager & manager, bool only_analyze)
|
||||
manager.addPass(std::make_unique<OptimizeGroupByFunctionKeysPass>());
|
||||
manager.addPass(std::make_unique<OptimizeGroupByInjectiveFunctionsPass>());
|
||||
|
||||
/// The order here is important as we want to keep collapsing in order
|
||||
manager.addPass(std::make_unique<MultiIfToIfPass>());
|
||||
manager.addPass(std::make_unique<IfConstantConditionPass>());
|
||||
manager.addPass(std::make_unique<IfChainToMultiIfPass>());
|
||||
manager.addPass(std::make_unique<RewriteAggregateFunctionWithIfPass>());
|
||||
manager.addPass(std::make_unique<SumIfToCountIfPass>());
|
||||
|
||||
manager.addPass(std::make_unique<ComparisonTupleEliminationPass>());
|
||||
|
||||
|
||||
21
src/Analyzer/RecursiveCTE.cpp
Normal file
21
src/Analyzer/RecursiveCTE.cpp
Normal file
@ -0,0 +1,21 @@
|
||||
#include <Analyzer/RecursiveCTE.h>
|
||||
|
||||
#include <Storages/IStorage.h>
|
||||
|
||||
namespace DB
|
||||
{
|
||||
|
||||
RecursiveCTETable::RecursiveCTETable(TemporaryTableHolderPtr holder_,
|
||||
StoragePtr storage_,
|
||||
NamesAndTypes columns_)
|
||||
: holder(std::move(holder_))
|
||||
, storage(std::move(storage_))
|
||||
, columns(std::move(columns_))
|
||||
{}
|
||||
|
||||
StorageID RecursiveCTETable::getStorageID() const
|
||||
{
|
||||
return storage->getStorageID();
|
||||
}
|
||||
|
||||
}
|
||||
51
src/Analyzer/RecursiveCTE.h
Normal file
51
src/Analyzer/RecursiveCTE.h
Normal file
@ -0,0 +1,51 @@
|
||||
#pragma once
|
||||
|
||||
#include <Core/NamesAndTypes.h>
|
||||
|
||||
#include <Interpreters/DatabaseCatalog.h>
|
||||
|
||||
#include <Analyzer/IQueryTreeNode.h>
|
||||
#include <Analyzer/TableNode.h>
|
||||
|
||||
namespace DB
|
||||
{
|
||||
|
||||
/** Recursive CTEs allow to recursively evaluate UNION subqueries.
|
||||
*
|
||||
* Overview:
|
||||
* https://www.postgresql.org/docs/current/queries-with.html#QUERIES-WITH-RECURSIVE
|
||||
*
|
||||
* Current implementation algorithm:
|
||||
*
|
||||
* During query analysis, when we resolve UNION node that is inside WITH RECURSIVE section of parent query we:
|
||||
* 1. First resolve non recursive subquery.
|
||||
* 2. Create temporary table using projection columns of resolved subquery from step 1.
|
||||
* 3. Create temporary table expression node using storage from step 2.
|
||||
* 4. Create resolution scope for recursive subquery. In that scope we add node from step 3 as expression argument with UNION node CTE name.
|
||||
* 5. Resolve recursive subquery.
|
||||
* 6. If in resolved UNION node temporary table expression storage from step 2 is used, we update UNION query with recursive CTE table.
|
||||
*
|
||||
* During query planning if UNION node contains recursive CTE table, we add ReadFromRecursiveCTEStep to query plan. That step is responsible for whole
|
||||
* recursive CTE query execution.
|
||||
*
|
||||
* TODO: Improve locking in ReadFromRecursiveCTEStep.
|
||||
* TODO: Improve query analysis if query contains aggregates, JOINS, GROUP BY, ORDER BY, LIMIT, OFFSET.
|
||||
* TODO: Support SEARCH DEPTH FIRST BY, SEARCH BREADTH FIRST BY syntax.
|
||||
* TODO: Support CYCLE syntax.
|
||||
* TODO: Support UNION DISTINCT recursive CTE mode.
|
||||
*/
|
||||
class RecursiveCTETable
|
||||
{
|
||||
public:
|
||||
RecursiveCTETable(TemporaryTableHolderPtr holder_,
|
||||
StoragePtr storage_,
|
||||
NamesAndTypes columns_);
|
||||
|
||||
StorageID getStorageID() const;
|
||||
|
||||
TemporaryTableHolderPtr holder;
|
||||
StoragePtr storage;
|
||||
NamesAndTypes columns;
|
||||
};
|
||||
|
||||
}
|
||||
@ -33,6 +33,14 @@ TableNode::TableNode(StoragePtr storage_, const ContextPtr & context)
|
||||
{
|
||||
}
|
||||
|
||||
void TableNode::updateStorage(StoragePtr storage_value, const ContextPtr & context)
|
||||
{
|
||||
storage = std::move(storage_value);
|
||||
storage_id = storage->getStorageID();
|
||||
storage_lock = storage->lockForShare(context->getInitialQueryId(), context->getSettingsRef().lock_acquire_timeout);
|
||||
storage_snapshot = storage->getStorageSnapshot(storage->getInMemoryMetadataPtr(), context);
|
||||
}
|
||||
|
||||
void TableNode::dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, size_t indent) const
|
||||
{
|
||||
buffer << std::string(indent, ' ') << "TABLE id: " << format_state.getNodeId(this);
|
||||
|
||||
@ -32,6 +32,11 @@ public:
|
||||
/// Construct table node with storage, context
|
||||
explicit TableNode(StoragePtr storage_, const ContextPtr & context);
|
||||
|
||||
/** Update table node storage.
|
||||
* After this call storage, storage_id, storage_lock, storage_snapshot will be updated using new storage.
|
||||
*/
|
||||
void updateStorage(StoragePtr storage_value, const ContextPtr & context);
|
||||
|
||||
/// Get storage
|
||||
const StoragePtr & getStorage() const
|
||||
{
|
||||
|
||||
@ -9,6 +9,7 @@
|
||||
|
||||
#include <Parsers/ASTExpressionList.h>
|
||||
#include <Parsers/ASTTablesInSelectQuery.h>
|
||||
#include <Parsers/ASTWithElement.h>
|
||||
#include <Parsers/ASTSubquery.h>
|
||||
#include <Parsers/ASTSelectQuery.h>
|
||||
#include <Parsers/ASTSelectWithUnionQuery.h>
|
||||
@ -20,6 +21,8 @@
|
||||
|
||||
#include <DataTypes/getLeastSupertype.h>
|
||||
|
||||
#include <Storages/IStorage.h>
|
||||
|
||||
#include <Interpreters/Context.h>
|
||||
|
||||
#include <Analyzer/QueryNode.h>
|
||||
@ -49,6 +52,9 @@ UnionNode::UnionNode(ContextMutablePtr context_, SelectUnionMode union_mode_)
|
||||
|
||||
NamesAndTypes UnionNode::computeProjectionColumns() const
|
||||
{
|
||||
if (recursive_cte_table)
|
||||
return recursive_cte_table->columns;
|
||||
|
||||
std::vector<NamesAndTypes> projections;
|
||||
|
||||
NamesAndTypes query_node_projection;
|
||||
@ -90,6 +96,9 @@ NamesAndTypes UnionNode::computeProjectionColumns() const
|
||||
|
||||
void UnionNode::removeUnusedProjectionColumns(const std::unordered_set<std::string> & used_projection_columns)
|
||||
{
|
||||
if (recursive_cte_table)
|
||||
return;
|
||||
|
||||
auto projection_columns = computeProjectionColumns();
|
||||
size_t projection_columns_size = projection_columns.size();
|
||||
std::unordered_set<size_t> used_projection_column_indexes;
|
||||
@ -113,6 +122,9 @@ void UnionNode::removeUnusedProjectionColumns(const std::unordered_set<std::stri
|
||||
|
||||
void UnionNode::removeUnusedProjectionColumns(const std::unordered_set<size_t> & used_projection_columns_indexes)
|
||||
{
|
||||
if (recursive_cte_table)
|
||||
return;
|
||||
|
||||
auto & query_nodes = getQueries().getNodes();
|
||||
for (auto & query_node : query_nodes)
|
||||
{
|
||||
@ -136,6 +148,12 @@ void UnionNode::dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, s
|
||||
if (is_cte)
|
||||
buffer << ", is_cte: " << is_cte;
|
||||
|
||||
if (is_recursive_cte)
|
||||
buffer << ", is_recursive_cte: " << is_recursive_cte;
|
||||
|
||||
if (recursive_cte_table)
|
||||
buffer << ", recursive_cte_table: " << recursive_cte_table->storage->getStorageID().getNameForLogs();
|
||||
|
||||
if (!cte_name.empty())
|
||||
buffer << ", cte_name: " << cte_name;
|
||||
|
||||
@ -149,14 +167,28 @@ bool UnionNode::isEqualImpl(const IQueryTreeNode & rhs, CompareOptions) const
|
||||
{
|
||||
const auto & rhs_typed = assert_cast<const UnionNode &>(rhs);
|
||||
|
||||
return is_subquery == rhs_typed.is_subquery && is_cte == rhs_typed.is_cte && cte_name == rhs_typed.cte_name &&
|
||||
union_mode == rhs_typed.union_mode;
|
||||
if (recursive_cte_table && rhs_typed.recursive_cte_table &&
|
||||
recursive_cte_table->getStorageID() != rhs_typed.recursive_cte_table->getStorageID())
|
||||
return false;
|
||||
else if ((recursive_cte_table && !rhs_typed.recursive_cte_table) || (!recursive_cte_table && rhs_typed.recursive_cte_table))
|
||||
return false;
|
||||
|
||||
return is_subquery == rhs_typed.is_subquery && is_cte == rhs_typed.is_cte && is_recursive_cte == rhs_typed.is_recursive_cte
|
||||
&& cte_name == rhs_typed.cte_name && union_mode == rhs_typed.union_mode;
|
||||
}
|
||||
|
||||
void UnionNode::updateTreeHashImpl(HashState & state, CompareOptions) const
|
||||
{
|
||||
state.update(is_subquery);
|
||||
state.update(is_cte);
|
||||
state.update(is_recursive_cte);
|
||||
|
||||
if (recursive_cte_table)
|
||||
{
|
||||
auto full_name = recursive_cte_table->getStorageID().getFullNameNotQuoted();
|
||||
state.update(full_name.size());
|
||||
state.update(full_name);
|
||||
}
|
||||
|
||||
state.update(cte_name.size());
|
||||
state.update(cte_name);
|
||||
@ -170,6 +202,8 @@ QueryTreeNodePtr UnionNode::cloneImpl() const
|
||||
|
||||
result_union_node->is_subquery = is_subquery;
|
||||
result_union_node->is_cte = is_cte;
|
||||
result_union_node->is_recursive_cte = is_recursive_cte;
|
||||
result_union_node->recursive_cte_table = recursive_cte_table;
|
||||
result_union_node->cte_name = cte_name;
|
||||
|
||||
return result_union_node;
|
||||
@ -183,14 +217,64 @@ ASTPtr UnionNode::toASTImpl(const ConvertToASTOptions & options) const
|
||||
select_with_union_query->children.push_back(getQueriesNode()->toAST(options));
|
||||
select_with_union_query->list_of_selects = select_with_union_query->children.back();
|
||||
|
||||
if (is_subquery)
|
||||
ASTPtr result_query = std::move(select_with_union_query);
|
||||
bool set_subquery_cte_name = true;
|
||||
|
||||
if (recursive_cte_table)
|
||||
{
|
||||
auto subquery = std::make_shared<ASTSubquery>(std::move(select_with_union_query));
|
||||
subquery->cte_name = cte_name;
|
||||
return subquery;
|
||||
auto recursive_select_query = std::make_shared<ASTSelectQuery>();
|
||||
recursive_select_query->recursive_with = true;
|
||||
|
||||
auto with_element_ast = std::make_shared<ASTWithElement>();
|
||||
with_element_ast->name = cte_name;
|
||||
with_element_ast->subquery = std::make_shared<ASTSubquery>(std::move(result_query));
|
||||
with_element_ast->children.push_back(with_element_ast->subquery);
|
||||
|
||||
auto with_expression_list_ast = std::make_shared<ASTExpressionList>();
|
||||
with_expression_list_ast->children.push_back(std::move(with_element_ast));
|
||||
|
||||
recursive_select_query->setExpression(ASTSelectQuery::Expression::WITH, std::move(with_expression_list_ast));
|
||||
|
||||
auto select_expression_list_ast = std::make_shared<ASTExpressionList>();
|
||||
select_expression_list_ast->children.reserve(recursive_cte_table->columns.size());
|
||||
for (const auto & recursive_cte_table_column : recursive_cte_table->columns)
|
||||
select_expression_list_ast->children.push_back(std::make_shared<ASTIdentifier>(recursive_cte_table_column.name));
|
||||
|
||||
recursive_select_query->setExpression(ASTSelectQuery::Expression::SELECT, std::move(select_expression_list_ast));
|
||||
|
||||
auto table_expression_ast = std::make_shared<ASTTableExpression>();
|
||||
table_expression_ast->children.push_back(std::make_shared<ASTTableIdentifier>(cte_name));
|
||||
table_expression_ast->database_and_table_name = table_expression_ast->children.back();
|
||||
|
||||
auto tables_in_select_query_element_ast = std::make_shared<ASTTablesInSelectQueryElement>();
|
||||
tables_in_select_query_element_ast->children.push_back(std::move(table_expression_ast));
|
||||
tables_in_select_query_element_ast->table_expression = tables_in_select_query_element_ast->children.back();
|
||||
|
||||
ASTPtr tables_in_select_query_ast = std::make_shared<ASTTablesInSelectQuery>();
|
||||
tables_in_select_query_ast->children.push_back(std::move(tables_in_select_query_element_ast));
|
||||
|
||||
recursive_select_query->setExpression(ASTSelectQuery::Expression::TABLES, std::move(tables_in_select_query_ast));
|
||||
|
||||
auto recursive_select_with_union_query = std::make_shared<ASTSelectWithUnionQuery>();
|
||||
auto recursive_select_with_union_query_list_of_selects = std::make_shared<ASTExpressionList>();
|
||||
recursive_select_with_union_query_list_of_selects->children.push_back(std::move(recursive_select_query));
|
||||
recursive_select_with_union_query->children.push_back(std::move(recursive_select_with_union_query_list_of_selects));
|
||||
recursive_select_with_union_query->list_of_selects = recursive_select_with_union_query->children.back();
|
||||
|
||||
result_query = std::move(recursive_select_with_union_query);
|
||||
set_subquery_cte_name = false;
|
||||
}
|
||||
|
||||
return select_with_union_query;
|
||||
if (is_subquery)
|
||||
{
|
||||
auto subquery = std::make_shared<ASTSubquery>(std::move(result_query));
|
||||
if (set_subquery_cte_name)
|
||||
subquery->cte_name = cte_name;
|
||||
|
||||
result_query = std::move(subquery);
|
||||
}
|
||||
|
||||
return result_query;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -9,6 +9,7 @@
|
||||
#include <Analyzer/IQueryTreeNode.h>
|
||||
#include <Analyzer/ListNode.h>
|
||||
#include <Analyzer/TableExpressionModifiers.h>
|
||||
#include <Analyzer/RecursiveCTE.h>
|
||||
|
||||
#include <Interpreters/Context_fwd.h>
|
||||
|
||||
@ -84,6 +85,42 @@ public:
|
||||
is_cte = is_cte_value;
|
||||
}
|
||||
|
||||
/// Returns true if union node CTE is specified in WITH RECURSIVE, false otherwise
|
||||
bool isRecursiveCTE() const
|
||||
{
|
||||
return is_recursive_cte;
|
||||
}
|
||||
|
||||
/// Set union node is recursive CTE value
|
||||
void setIsRecursiveCTE(bool is_recursive_cte_value)
|
||||
{
|
||||
is_recursive_cte = is_recursive_cte_value;
|
||||
}
|
||||
|
||||
/// Returns true if union node has recursive CTE table, false otherwise
|
||||
bool hasRecursiveCTETable() const
|
||||
{
|
||||
return recursive_cte_table.has_value();
|
||||
}
|
||||
|
||||
/// Returns optional recursive CTE table
|
||||
const std::optional<RecursiveCTETable> & getRecursiveCTETable() const
|
||||
{
|
||||
return recursive_cte_table;
|
||||
}
|
||||
|
||||
/// Returns optional recursive CTE table
|
||||
std::optional<RecursiveCTETable> & getRecursiveCTETable()
|
||||
{
|
||||
return recursive_cte_table;
|
||||
}
|
||||
|
||||
/// Set union node recursive CTE table value
|
||||
void setRecursiveCTETable(RecursiveCTETable recursive_cte_table_value)
|
||||
{
|
||||
recursive_cte_table.emplace(std::move(recursive_cte_table_value));
|
||||
}
|
||||
|
||||
/// Get union node CTE name
|
||||
const std::string & getCTEName() const
|
||||
{
|
||||
@ -154,6 +191,8 @@ protected:
|
||||
private:
|
||||
bool is_subquery = false;
|
||||
bool is_cte = false;
|
||||
bool is_recursive_cte = false;
|
||||
std::optional<RecursiveCTETable> recursive_cte_table;
|
||||
std::string cte_name;
|
||||
ContextMutablePtr context;
|
||||
SelectUnionMode union_mode;
|
||||
|
||||
@ -5,6 +5,7 @@
|
||||
#include <Parsers/ASTSubquery.h>
|
||||
#include <Parsers/ASTFunction.h>
|
||||
|
||||
#include <DataTypes/DataTypesNumber.h>
|
||||
#include <DataTypes/DataTypeString.h>
|
||||
#include <DataTypes/DataTypeTuple.h>
|
||||
#include <DataTypes/DataTypeArray.h>
|
||||
@ -15,6 +16,8 @@
|
||||
#include <Functions/FunctionHelpers.h>
|
||||
#include <Functions/FunctionFactory.h>
|
||||
|
||||
#include <Storages/IStorage.h>
|
||||
|
||||
#include <Interpreters/Context.h>
|
||||
|
||||
#include <Analyzer/InDepthQueryTreeVisitor.h>
|
||||
@ -61,6 +64,36 @@ bool isNodePartOfTree(const IQueryTreeNode * node, const IQueryTreeNode * root)
|
||||
return false;
|
||||
}
|
||||
|
||||
bool isStorageUsedInTree(const StoragePtr & storage, const IQueryTreeNode * root)
|
||||
{
|
||||
std::vector<const IQueryTreeNode *> nodes_to_process;
|
||||
nodes_to_process.push_back(root);
|
||||
|
||||
while (!nodes_to_process.empty())
|
||||
{
|
||||
const auto * subtree_node = nodes_to_process.back();
|
||||
nodes_to_process.pop_back();
|
||||
|
||||
const auto * table_node = subtree_node->as<TableNode>();
|
||||
const auto * table_function_node = subtree_node->as<TableFunctionNode>();
|
||||
|
||||
if (table_node || table_function_node)
|
||||
{
|
||||
const auto & table_storage = table_node ? table_node->getStorage() : table_function_node->getStorage();
|
||||
if (table_storage->getStorageID() == storage->getStorageID())
|
||||
return true;
|
||||
}
|
||||
|
||||
for (const auto & child : subtree_node->getChildren())
|
||||
{
|
||||
if (child)
|
||||
nodes_to_process.push_back(child.get());
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool isNameOfInFunction(const std::string & function_name)
|
||||
{
|
||||
bool is_special_function_in = function_name == "in" ||
|
||||
@ -808,26 +841,87 @@ QueryTreeNodePtr getExpressionSource(const QueryTreeNodePtr & node)
|
||||
return source;
|
||||
}
|
||||
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(QueryTreeNodePtr table_node, const ContextPtr & context)
|
||||
/** There are no limits on the maximum size of the result for the subquery.
|
||||
* Since the result of the query is not the result of the entire query.
|
||||
*/
|
||||
void updateContextForSubqueryExecution(ContextMutablePtr & mutable_context)
|
||||
{
|
||||
/** The subquery in the IN / JOIN section does not have any restrictions on the maximum size of the result.
|
||||
* Because the result of this query is not the result of the entire query.
|
||||
* Constraints work instead
|
||||
* max_rows_in_set, max_bytes_in_set, set_overflow_mode,
|
||||
* max_rows_in_join, max_bytes_in_join, join_overflow_mode,
|
||||
* which are checked separately (in the Set, Join objects).
|
||||
*/
|
||||
Settings subquery_settings = mutable_context->getSettings();
|
||||
subquery_settings.max_result_rows = 0;
|
||||
subquery_settings.max_result_bytes = 0;
|
||||
/// The calculation of extremes does not make sense and is not necessary (if you do it, then the extremes of the subquery can be taken for whole query).
|
||||
subquery_settings.extremes = false;
|
||||
mutable_context->setSettings(subquery_settings);
|
||||
}
|
||||
|
||||
QueryTreeNodePtr buildQueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
ContextMutablePtr & context)
|
||||
{
|
||||
auto projection_columns = columns;
|
||||
|
||||
QueryTreeNodes subquery_projection_nodes;
|
||||
subquery_projection_nodes.reserve(projection_columns.size());
|
||||
|
||||
for (const auto & column : projection_columns)
|
||||
subquery_projection_nodes.push_back(std::make_shared<ColumnNode>(column, table_expression));
|
||||
|
||||
if (subquery_projection_nodes.empty())
|
||||
{
|
||||
auto constant_data_type = std::make_shared<DataTypeUInt64>();
|
||||
subquery_projection_nodes.push_back(std::make_shared<ConstantNode>(1UL, constant_data_type));
|
||||
projection_columns.push_back({"1", std::move(constant_data_type)});
|
||||
}
|
||||
|
||||
updateContextForSubqueryExecution(context);
|
||||
|
||||
auto query_node = std::make_shared<QueryNode>(std::move(context));
|
||||
|
||||
query_node->getProjection().getNodes() = std::move(subquery_projection_nodes);
|
||||
query_node->resolveProjectionColumns(projection_columns);
|
||||
query_node->getJoinTree() = table_expression;
|
||||
|
||||
return query_node;
|
||||
}
|
||||
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
ContextMutablePtr & context)
|
||||
{
|
||||
auto result = buildQueryToReadColumnsFromTableExpression(columns, table_expression, context);
|
||||
result->as<QueryNode &>().setIsSubquery(true);
|
||||
return result;
|
||||
}
|
||||
|
||||
QueryTreeNodePtr buildQueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
const ContextPtr & context)
|
||||
{
|
||||
auto context_copy = Context::createCopy(context);
|
||||
return buildQueryToReadColumnsFromTableExpression(columns, table_expression, context_copy);
|
||||
}
|
||||
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
const ContextPtr & context)
|
||||
{
|
||||
auto context_copy = Context::createCopy(context);
|
||||
return buildSubqueryToReadColumnsFromTableExpression(columns, table_expression, context_copy);
|
||||
}
|
||||
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(const QueryTreeNodePtr & table_node, const ContextPtr & context)
|
||||
{
|
||||
const auto & storage_snapshot = table_node->as<TableNode>()->getStorageSnapshot();
|
||||
auto columns_to_select = storage_snapshot->getColumns(GetColumnsOptions(GetColumnsOptions::Ordinary));
|
||||
size_t columns_to_select_size = columns_to_select.size();
|
||||
auto column_nodes_to_select = std::make_shared<ListNode>();
|
||||
column_nodes_to_select->getNodes().reserve(columns_to_select_size);
|
||||
NamesAndTypes projection_columns;
|
||||
projection_columns.reserve(columns_to_select_size);
|
||||
for (auto & column : columns_to_select)
|
||||
{
|
||||
column_nodes_to_select->getNodes().emplace_back(std::make_shared<ColumnNode>(column, table_node));
|
||||
projection_columns.emplace_back(column.name, column.type);
|
||||
}
|
||||
auto subquery_for_table = std::make_shared<QueryNode>(Context::createCopy(context));
|
||||
subquery_for_table->setIsSubquery(true);
|
||||
subquery_for_table->getProjectionNode() = std::move(column_nodes_to_select);
|
||||
subquery_for_table->getJoinTree() = std::move(table_node);
|
||||
subquery_for_table->resolveProjectionColumns(std::move(projection_columns));
|
||||
return subquery_for_table;
|
||||
auto columns_to_select_list = storage_snapshot->getColumns(GetColumnsOptions(GetColumnsOptions::Ordinary));
|
||||
NamesAndTypes columns_to_select(columns_to_select_list.begin(), columns_to_select_list.end());
|
||||
return buildSubqueryToReadColumnsFromTableExpression(columns_to_select, table_node, context);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -1,9 +1,13 @@
|
||||
#pragma once
|
||||
|
||||
#include <Analyzer/IQueryTreeNode.h>
|
||||
#include <Core/NamesAndTypes.h>
|
||||
|
||||
#include <Storages/IStorage_fwd.h>
|
||||
|
||||
#include <Interpreters/Context_fwd.h>
|
||||
|
||||
#include <Analyzer/IQueryTreeNode.h>
|
||||
|
||||
namespace DB
|
||||
{
|
||||
|
||||
@ -12,6 +16,9 @@ class FunctionNode;
|
||||
/// Returns true if node part of root tree, false otherwise
|
||||
bool isNodePartOfTree(const IQueryTreeNode * node, const IQueryTreeNode * root);
|
||||
|
||||
/// Returns true if storage is used in tree, false otherwise
|
||||
bool isStorageUsedInTree(const StoragePtr & storage, const IQueryTreeNode * root);
|
||||
|
||||
/// Returns true if function name is name of IN function or its variations, false otherwise
|
||||
bool isNameOfInFunction(const std::string & function_name);
|
||||
|
||||
@ -108,7 +115,41 @@ QueryTreeNodePtr createCastFunction(QueryTreeNodePtr node, DataTypePtr result_ty
|
||||
/// Checks that node has only one source and returns it
|
||||
QueryTreeNodePtr getExpressionSource(const QueryTreeNodePtr & node);
|
||||
|
||||
/// Build subquery which we execute for `IN table` function.
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(QueryTreeNodePtr table_node, const ContextPtr & context);
|
||||
/// Update mutable context for subquery execution
|
||||
void updateContextForSubqueryExecution(ContextMutablePtr & mutable_context);
|
||||
|
||||
/** Build query to read specified columns from table expression.
|
||||
* Specified mutable context will be used as query context.
|
||||
*/
|
||||
QueryTreeNodePtr buildQueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
ContextMutablePtr & context);
|
||||
|
||||
/** Build subquery to read specified columns from table expression.
|
||||
* Specified mutable context will be used as query context.
|
||||
*/
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
ContextMutablePtr & context);
|
||||
|
||||
/** Build query to read specified columns from table expression.
|
||||
* Specified context will be copied and used as query context.
|
||||
*/
|
||||
QueryTreeNodePtr buildQueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
const ContextPtr & context);
|
||||
|
||||
/** Build subquery to read specified columns from table expression.
|
||||
* Specified context will be copied and used as query context.
|
||||
*/
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
|
||||
const QueryTreeNodePtr & table_expression,
|
||||
const ContextPtr & context);
|
||||
|
||||
/** Build subquery to read all columns from table expression.
|
||||
* Specified context will be copied and used as query context.
|
||||
*/
|
||||
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(const QueryTreeNodePtr & table_node, const ContextPtr & context);
|
||||
|
||||
|
||||
}
|
||||
|
||||
@ -221,7 +221,8 @@ std::unique_ptr<WriteBuffer> BackupWriterAzureBlobStorage::writeFile(const Strin
|
||||
key,
|
||||
DBMS_DEFAULT_BUFFER_SIZE,
|
||||
write_settings,
|
||||
settings);
|
||||
settings,
|
||||
threadPoolCallbackRunnerUnsafe<void>(getBackupsIOThreadPool().get(), "BackupWRAzure"));
|
||||
}
|
||||
|
||||
void BackupWriterAzureBlobStorage::removeFile(const String & file_name)
|
||||
|
||||
@ -109,7 +109,7 @@ RestorerFromBackup::~RestorerFromBackup()
|
||||
if (getNumFutures() > 0)
|
||||
{
|
||||
LOG_INFO(log, "Waiting for {} tasks to finish", getNumFutures());
|
||||
waitFutures();
|
||||
waitFutures(/* throw_if_error= */ false);
|
||||
}
|
||||
}
|
||||
|
||||
@ -161,7 +161,7 @@ void RestorerFromBackup::run(Mode mode)
|
||||
setStage(Stage::COMPLETED);
|
||||
}
|
||||
|
||||
void RestorerFromBackup::waitFutures()
|
||||
void RestorerFromBackup::waitFutures(bool throw_if_error)
|
||||
{
|
||||
std::exception_ptr error;
|
||||
|
||||
@ -176,11 +176,7 @@ void RestorerFromBackup::waitFutures()
|
||||
if (futures_to_wait.empty())
|
||||
break;
|
||||
|
||||
/// Wait for all tasks.
|
||||
for (auto & future : futures_to_wait)
|
||||
future.wait();
|
||||
|
||||
/// Check if there is an exception.
|
||||
/// Wait for all tasks to finish.
|
||||
for (auto & future : futures_to_wait)
|
||||
{
|
||||
try
|
||||
@ -197,7 +193,12 @@ void RestorerFromBackup::waitFutures()
|
||||
}
|
||||
|
||||
if (error)
|
||||
std::rethrow_exception(error);
|
||||
{
|
||||
if (throw_if_error)
|
||||
std::rethrow_exception(error);
|
||||
else
|
||||
tryLogException(error, log);
|
||||
}
|
||||
}
|
||||
|
||||
size_t RestorerFromBackup::getNumFutures() const
|
||||
|
||||
@ -130,7 +130,7 @@ private:
|
||||
|
||||
/// Waits until all tasks are processed (including the tasks scheduled while we're waiting).
|
||||
/// Throws an exception if any of the tasks throws an exception.
|
||||
void waitFutures();
|
||||
void waitFutures(bool throw_if_error = true);
|
||||
|
||||
/// Throws an exception if the RESTORE query was cancelled.
|
||||
void checkIsQueryCancelled() const;
|
||||
|
||||
@ -2955,7 +2955,8 @@ void ClientBase::init(int argc, char ** argv)
|
||||
|
||||
/// Common options for clickhouse-client and clickhouse-local.
|
||||
options_description.main_description->add_options()
|
||||
("help", "produce help message")
|
||||
("help", "print usage summary, combine with --verbose to display all options")
|
||||
("verbose", "print query and other debugging info")
|
||||
("version,V", "print version information and exit")
|
||||
("version-clean", "print version in machine-readable format and exit")
|
||||
|
||||
@ -2979,7 +2980,6 @@ void ClientBase::init(int argc, char ** argv)
|
||||
("time,t", "print query execution time to stderr in non-interactive mode (for benchmarks)")
|
||||
|
||||
("echo", "in batch mode, print query before execution")
|
||||
("verbose", "print query and other debugging info")
|
||||
|
||||
("log-level", po::value<std::string>(), "log level")
|
||||
("server_logs_file", po::value<std::string>(), "put server logs into specified file")
|
||||
@ -3008,6 +3008,8 @@ void ClientBase::init(int argc, char ** argv)
|
||||
|
||||
addOptions(options_description);
|
||||
|
||||
OptionsDescription options_description_non_verbose = options_description;
|
||||
|
||||
auto getter = [](const auto & op)
|
||||
{
|
||||
String op_long_name = op->long_name();
|
||||
@ -3042,11 +3044,17 @@ void ClientBase::init(int argc, char ** argv)
|
||||
exit(0); // NOLINT(concurrency-mt-unsafe)
|
||||
}
|
||||
|
||||
if (options.count("verbose"))
|
||||
config().setBool("verbose", true);
|
||||
|
||||
/// Output of help message.
|
||||
if (options.count("help")
|
||||
|| (options.count("host") && options["host"].as<std::string>() == "elp")) /// If user writes -help instead of --help.
|
||||
{
|
||||
printHelpMessage(options_description);
|
||||
if (config().getBool("verbose", false))
|
||||
printHelpMessage(options_description, true);
|
||||
else
|
||||
printHelpMessage(options_description_non_verbose, false);
|
||||
exit(0); // NOLINT(concurrency-mt-unsafe)
|
||||
}
|
||||
|
||||
@ -3113,8 +3121,6 @@ void ClientBase::init(int argc, char ** argv)
|
||||
config().setBool("highlight", options["highlight"].as<bool>());
|
||||
if (options.count("history_file"))
|
||||
config().setString("history_file", options["history_file"].as<std::string>());
|
||||
if (options.count("verbose"))
|
||||
config().setBool("verbose", true);
|
||||
if (options.count("interactive"))
|
||||
config().setBool("interactive", true);
|
||||
if (options.count("pager"))
|
||||
|
||||
@ -121,7 +121,7 @@ protected:
|
||||
};
|
||||
|
||||
virtual void updateLoggerLevel(const String &) {}
|
||||
virtual void printHelpMessage(const OptionsDescription & options_description) = 0;
|
||||
virtual void printHelpMessage(const OptionsDescription & options_description, bool verbose) = 0;
|
||||
virtual void addOptions(OptionsDescription & options_description) = 0;
|
||||
virtual void processOptions(const OptionsDescription & options_description,
|
||||
const CommandLineOptions & options,
|
||||
|
||||
@ -125,7 +125,7 @@ void highlight(const String & query, std::vector<replxx::Replxx::Color> & colors
|
||||
|
||||
const char * begin = query.data();
|
||||
const char * end = begin + query.size();
|
||||
Tokens tokens(begin, end, 1000, true);
|
||||
Tokens tokens(begin, end, 10000, true);
|
||||
IParser::Pos token_iterator(tokens, static_cast<uint32_t>(1000), static_cast<uint32_t>(10000));
|
||||
Expected expected;
|
||||
expected.enable_highlighting = true;
|
||||
|
||||
@ -28,28 +28,6 @@ namespace ErrorCodes
|
||||
extern const int USER_SESSION_LIMIT_EXCEEDED;
|
||||
}
|
||||
|
||||
Suggest::Suggest()
|
||||
{
|
||||
/// Keywords may be not up to date with ClickHouse parser.
|
||||
addWords({"CREATE", "DATABASE", "IF", "NOT", "EXISTS", "TEMPORARY", "TABLE", "ON",
|
||||
"CLUSTER", "DEFAULT", "MATERIALIZED", "ALIAS", "ENGINE", "AS", "VIEW", "POPULATE",
|
||||
"SETTINGS", "ATTACH", "DETACH", "DROP", "RENAME", "TO", "ALTER", "ADD",
|
||||
"MODIFY", "CLEAR", "COLUMN", "AFTER", "COPY", "PROJECT", "PRIMARY", "KEY",
|
||||
"CHECK", "PARTITION", "PART", "FREEZE", "FETCH", "FROM", "SHOW", "INTO",
|
||||
"OUTFILE", "FORMAT", "TABLES", "DATABASES", "LIKE", "PROCESSLIST", "CASE", "WHEN",
|
||||
"THEN", "ELSE", "END", "DESCRIBE", "DESC", "USE", "SET", "OPTIMIZE",
|
||||
"FINAL", "DEDUPLICATE", "INSERT", "VALUES", "SELECT", "DISTINCT", "SAMPLE", "ARRAY",
|
||||
"JOIN", "GLOBAL", "LOCAL", "ANY", "ALL", "INNER", "LEFT", "RIGHT",
|
||||
"FULL", "OUTER", "CROSS", "USING", "PREWHERE", "WHERE", "GROUP", "BY",
|
||||
"WITH", "TOTALS", "HAVING", "ORDER", "COLLATE", "LIMIT", "UNION", "AND",
|
||||
"OR", "ASC", "IN", "KILL", "QUERY", "SYNC", "ASYNC", "TEST",
|
||||
"BETWEEN", "TRUNCATE", "USER", "ROLE", "PROFILE", "QUOTA", "POLICY", "ROW",
|
||||
"GRANT", "REVOKE", "OPTION", "ADMIN", "EXCEPT", "REPLACE", "IDENTIFIED", "HOST",
|
||||
"NAME", "READONLY", "WRITABLE", "PERMISSIVE", "FOR", "RESTRICTIVE", "RANDOMIZED", "INTERVAL",
|
||||
"LIMITS", "ONLY", "TRACKING", "IP", "REGEXP", "ILIKE", "CLEANUP", "APPEND",
|
||||
"IGNORE NULLS", "RESPECT NULLS", "OVER", "PASTE", "WINDOW", "QUALIFY"});
|
||||
}
|
||||
|
||||
static String getLoadSuggestionQuery(Int32 suggestion_limit, bool basic_suggestion)
|
||||
{
|
||||
/// NOTE: Once you will update the completion list,
|
||||
@ -82,6 +60,7 @@ static String getLoadSuggestionQuery(Int32 suggestion_limit, bool basic_suggesti
|
||||
add_column("name", "data_type_families", false, {});
|
||||
add_column("name", "merge_tree_settings", false, {});
|
||||
add_column("name", "settings", false, {});
|
||||
add_column("keyword", "keywords", false, {});
|
||||
|
||||
if (!basic_suggestion)
|
||||
{
|
||||
|
||||
@ -17,7 +17,7 @@ namespace DB
|
||||
class Suggest : public LineReader::Suggest, boost::noncopyable
|
||||
{
|
||||
public:
|
||||
Suggest();
|
||||
Suggest() = default;
|
||||
|
||||
~Suggest()
|
||||
{
|
||||
|
||||
@ -39,6 +39,7 @@ static struct InitFiu
|
||||
REGULAR(replicated_merge_tree_commit_zk_fail_when_recovering_from_hw_fault) \
|
||||
REGULAR(use_delayed_remote_source) \
|
||||
REGULAR(cluster_discovery_faults) \
|
||||
REGULAR(replicated_sends_failpoint) \
|
||||
ONCE(smt_commit_merge_mutate_zk_fail_after_op) \
|
||||
ONCE(smt_commit_merge_mutate_zk_fail_before_op) \
|
||||
ONCE(smt_commit_write_zk_fail_after_op) \
|
||||
|
||||
@ -14,10 +14,7 @@ public:
|
||||
, re_gen(key_template)
|
||||
{
|
||||
}
|
||||
DB::ObjectStorageKey generate(const String &) const override
|
||||
{
|
||||
return DB::ObjectStorageKey::createAsAbsolute(re_gen.generate());
|
||||
}
|
||||
DB::ObjectStorageKey generate(const String &, bool) const override { return DB::ObjectStorageKey::createAsAbsolute(re_gen.generate()); }
|
||||
|
||||
private:
|
||||
String key_template;
|
||||
@ -32,7 +29,7 @@ public:
|
||||
: key_prefix(std::move(key_prefix_))
|
||||
{}
|
||||
|
||||
DB::ObjectStorageKey generate(const String &) const override
|
||||
DB::ObjectStorageKey generate(const String &, bool) const override
|
||||
{
|
||||
/// Path to store the new S3 object.
|
||||
|
||||
@ -63,7 +60,7 @@ public:
|
||||
: key_prefix(std::move(key_prefix_))
|
||||
{}
|
||||
|
||||
DB::ObjectStorageKey generate(const String & path) const override
|
||||
DB::ObjectStorageKey generate(const String & path, bool) const override
|
||||
{
|
||||
return DB::ObjectStorageKey::createAsRelative(key_prefix, path);
|
||||
}
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
#pragma once
|
||||
|
||||
#include "ObjectStorageKey.h"
|
||||
#include <memory>
|
||||
#include "ObjectStorageKey.h"
|
||||
|
||||
namespace DB
|
||||
{
|
||||
@ -9,8 +9,9 @@ namespace DB
|
||||
class IObjectStorageKeysGenerator
|
||||
{
|
||||
public:
|
||||
virtual ObjectStorageKey generate(const String & path) const = 0;
|
||||
virtual ~IObjectStorageKeysGenerator() = default;
|
||||
|
||||
virtual ObjectStorageKey generate(const String & path, bool is_directory) const = 0;
|
||||
};
|
||||
|
||||
using ObjectStorageKeysGeneratorPtr = std::shared_ptr<IObjectStorageKeysGenerator>;
|
||||
|
||||
@ -518,7 +518,8 @@ bool ZooKeeper::existsWatch(const std::string & path, Coordination::Stat * stat,
|
||||
return code != Coordination::Error::ZNONODE;
|
||||
}
|
||||
|
||||
Coordination::Error ZooKeeper::getImpl(const std::string & path, std::string & res, Coordination::Stat * stat, Coordination::WatchCallback watch_callback)
|
||||
Coordination::Error ZooKeeper::getImpl(
|
||||
const std::string & path, std::string & res, Coordination::Stat * stat, Coordination::WatchCallbackPtr watch_callback)
|
||||
{
|
||||
auto future_result = asyncTryGetNoThrow(path, watch_callback);
|
||||
|
||||
@ -541,6 +542,11 @@ Coordination::Error ZooKeeper::getImpl(const std::string & path, std::string & r
|
||||
}
|
||||
}
|
||||
|
||||
Coordination::Error ZooKeeper::getImpl(const std::string & path, std::string & res, Coordination::Stat * stat, Coordination::WatchCallback watch_callback)
|
||||
{
|
||||
return getImpl(path, res, stat, watch_callback ? std::make_shared<Coordination::WatchCallback>(watch_callback) : Coordination::WatchCallbackPtr{});
|
||||
}
|
||||
|
||||
std::string ZooKeeper::get(const std::string & path, Coordination::Stat * stat, const EventPtr & watch)
|
||||
{
|
||||
Coordination::Error code = Coordination::Error::ZOK;
|
||||
@ -561,6 +567,17 @@ std::string ZooKeeper::getWatch(const std::string & path, Coordination::Stat * s
|
||||
throw KeeperException(code, "Can't get data for node '{}': node doesn't exist", path);
|
||||
}
|
||||
|
||||
|
||||
std::string ZooKeeper::getWatch(const std::string & path, Coordination::Stat * stat, Coordination::WatchCallbackPtr watch_callback)
|
||||
{
|
||||
Coordination::Error code = Coordination::Error::ZOK;
|
||||
std::string res;
|
||||
if (tryGetWatch(path, res, stat, watch_callback, &code))
|
||||
return res;
|
||||
else
|
||||
throw KeeperException(code, "Can't get data for node '{}': node doesn't exist", path);
|
||||
}
|
||||
|
||||
bool ZooKeeper::tryGet(
|
||||
const std::string & path,
|
||||
std::string & res,
|
||||
@ -571,6 +588,25 @@ bool ZooKeeper::tryGet(
|
||||
return tryGetWatch(path, res, stat, callbackForEvent(watch), return_code);
|
||||
}
|
||||
|
||||
bool ZooKeeper::tryGetWatch(
|
||||
const std::string & path,
|
||||
std::string & res,
|
||||
Coordination::Stat * stat,
|
||||
Coordination::WatchCallbackPtr watch_callback,
|
||||
Coordination::Error * return_code)
|
||||
{
|
||||
Coordination::Error code = getImpl(path, res, stat, watch_callback);
|
||||
|
||||
if (!(code == Coordination::Error::ZOK || code == Coordination::Error::ZNONODE))
|
||||
throw KeeperException::fromPath(code, path);
|
||||
|
||||
if (return_code)
|
||||
*return_code = code;
|
||||
|
||||
return code == Coordination::Error::ZOK;
|
||||
|
||||
}
|
||||
|
||||
bool ZooKeeper::tryGetWatch(
|
||||
const std::string & path,
|
||||
std::string & res,
|
||||
@ -589,6 +625,7 @@ bool ZooKeeper::tryGetWatch(
|
||||
return code == Coordination::Error::ZOK;
|
||||
}
|
||||
|
||||
|
||||
Coordination::Error ZooKeeper::setImpl(const std::string & path, const std::string & data,
|
||||
int32_t version, Coordination::Stat * stat)
|
||||
{
|
||||
@ -1062,6 +1099,11 @@ std::future<Coordination::GetResponse> ZooKeeper::asyncGet(const std::string & p
|
||||
}
|
||||
|
||||
std::future<Coordination::GetResponse> ZooKeeper::asyncTryGetNoThrow(const std::string & path, Coordination::WatchCallback watch_callback)
|
||||
{
|
||||
return asyncTryGetNoThrow(path, watch_callback ? std::make_shared<Coordination::WatchCallback>(watch_callback) : Coordination::WatchCallbackPtr{});
|
||||
}
|
||||
|
||||
std::future<Coordination::GetResponse> ZooKeeper::asyncTryGetNoThrow(const std::string & path, Coordination::WatchCallbackPtr watch_callback)
|
||||
{
|
||||
auto promise = std::make_shared<std::promise<Coordination::GetResponse>>();
|
||||
auto future = promise->get_future();
|
||||
@ -1071,8 +1113,7 @@ std::future<Coordination::GetResponse> ZooKeeper::asyncTryGetNoThrow(const std::
|
||||
promise->set_value(response);
|
||||
};
|
||||
|
||||
impl->get(path, std::move(callback),
|
||||
watch_callback ? std::make_shared<Coordination::WatchCallback>(watch_callback) : Coordination::WatchCallbackPtr{});
|
||||
impl->get(path, std::move(callback), watch_callback);
|
||||
return future;
|
||||
}
|
||||
|
||||
|
||||
@ -306,6 +306,7 @@ public:
|
||||
|
||||
std::string get(const std::string & path, Coordination::Stat * stat = nullptr, const EventPtr & watch = nullptr);
|
||||
std::string getWatch(const std::string & path, Coordination::Stat * stat, Coordination::WatchCallback watch_callback);
|
||||
std::string getWatch(const std::string & path, Coordination::Stat * stat, Coordination::WatchCallbackPtr watch_callback);
|
||||
|
||||
using MultiGetResponse = MultiReadResponses<Coordination::GetResponse, false>;
|
||||
using MultiTryGetResponse = MultiReadResponses<Coordination::GetResponse, true>;
|
||||
@ -338,6 +339,13 @@ public:
|
||||
Coordination::WatchCallback watch_callback,
|
||||
Coordination::Error * code = nullptr);
|
||||
|
||||
bool tryGetWatch(
|
||||
const std::string & path,
|
||||
std::string & res,
|
||||
Coordination::Stat * stat,
|
||||
Coordination::WatchCallbackPtr watch_callback,
|
||||
Coordination::Error * code = nullptr);
|
||||
|
||||
template <typename TIter>
|
||||
MultiTryGetResponse tryGet(TIter start, TIter end)
|
||||
{
|
||||
@ -520,6 +528,8 @@ public:
|
||||
/// Like the previous one but don't throw any exceptions on future.get()
|
||||
FutureGet asyncTryGetNoThrow(const std::string & path, Coordination::WatchCallback watch_callback = {});
|
||||
|
||||
FutureGet asyncTryGetNoThrow(const std::string & path, Coordination::WatchCallbackPtr watch_callback = {});
|
||||
|
||||
using FutureExists = std::future<Coordination::ExistsResponse>;
|
||||
FutureExists asyncExists(const std::string & path, Coordination::WatchCallback watch_callback = {});
|
||||
/// Like the previous one but don't throw any exceptions on future.get()
|
||||
@ -625,6 +635,8 @@ private:
|
||||
Coordination::Error removeImpl(const std::string & path, int32_t version);
|
||||
Coordination::Error getImpl(
|
||||
const std::string & path, std::string & res, Coordination::Stat * stat, Coordination::WatchCallback watch_callback);
|
||||
Coordination::Error getImpl(
|
||||
const std::string & path, std::string & res, Coordination::Stat * stat, Coordination::WatchCallbackPtr watch_callback);
|
||||
Coordination::Error setImpl(const std::string & path, const std::string & data, int32_t version, Coordination::Stat * stat);
|
||||
Coordination::Error getChildrenImpl(
|
||||
const std::string & path,
|
||||
|
||||
@ -22,13 +22,16 @@ ZooKeeperLock::ZooKeeperLock(
|
||||
const ZooKeeperPtr & zookeeper_,
|
||||
const std::string & lock_prefix_,
|
||||
const std::string & lock_name_,
|
||||
const std::string & lock_message_)
|
||||
const std::string & lock_message_,
|
||||
bool throw_if_lost_)
|
||||
: zookeeper(zookeeper_)
|
||||
, lock_path(fs::path(lock_prefix_) / lock_name_)
|
||||
, lock_message(lock_message_)
|
||||
, throw_if_lost(throw_if_lost_)
|
||||
, log(getLogger("zkutil::Lock"))
|
||||
{
|
||||
zookeeper->createIfNotExists(lock_prefix_, "");
|
||||
LOG_TRACE(log, "Trying to create zookeeper lock on path {} for session {}", lock_path, zookeeper->getClientID());
|
||||
}
|
||||
|
||||
ZooKeeperLock::~ZooKeeperLock()
|
||||
@ -45,7 +48,7 @@ ZooKeeperLock::~ZooKeeperLock()
|
||||
|
||||
bool ZooKeeperLock::isLocked() const
|
||||
{
|
||||
return locked;
|
||||
return locked && !zookeeper->expired();
|
||||
}
|
||||
|
||||
const std::string & ZooKeeperLock::getLockPath() const
|
||||
@ -56,7 +59,10 @@ const std::string & ZooKeeperLock::getLockPath() const
|
||||
void ZooKeeperLock::unlock()
|
||||
{
|
||||
if (!locked)
|
||||
{
|
||||
LOG_TRACE(log, "Lock on path {} for session {} is not locked, exiting", lock_path, zookeeper->getClientID());
|
||||
return;
|
||||
}
|
||||
|
||||
locked = false;
|
||||
|
||||
@ -71,12 +77,19 @@ void ZooKeeperLock::unlock()
|
||||
bool result = zookeeper->exists(lock_path, &stat);
|
||||
|
||||
if (result && stat.ephemeralOwner == zookeeper->getClientID())
|
||||
{
|
||||
zookeeper->remove(lock_path, -1);
|
||||
LOG_TRACE(log, "Lock on path {} for session {} is unlocked", lock_path, zookeeper->getClientID());
|
||||
}
|
||||
else if (result)
|
||||
throw DB::Exception(DB::ErrorCodes::LOGICAL_ERROR, "Lock is lost, it has another owner. Path: {}, message: {}, owner: {}, our id: {}",
|
||||
lock_path, lock_message, stat.ephemeralOwner, zookeeper->getClientID());
|
||||
else if (throw_if_lost)
|
||||
throw DB::Exception(DB::ErrorCodes::LOGICAL_ERROR, "Lock is lost, node does not exist. Path: {}, message: {}, our id: {}",
|
||||
lock_path, lock_message, zookeeper->getClientID());
|
||||
else
|
||||
throw DB::Exception(DB::ErrorCodes::LOGICAL_ERROR, "Lock is lost, node does not exist. Path: {}, message: {}", lock_path, lock_message);
|
||||
LOG_INFO(log, "Lock is lost, node does not exist. Path: {}, message: {}, our id: {}",
|
||||
lock_path, lock_message, zookeeper->getClientID());
|
||||
}
|
||||
|
||||
bool ZooKeeperLock::tryLock()
|
||||
@ -96,9 +109,9 @@ bool ZooKeeperLock::tryLock()
|
||||
}
|
||||
|
||||
std::unique_ptr<ZooKeeperLock> createSimpleZooKeeperLock(
|
||||
const ZooKeeperPtr & zookeeper, const String & lock_prefix, const String & lock_name, const String & lock_message)
|
||||
const ZooKeeperPtr & zookeeper, const String & lock_prefix, const String & lock_name, const String & lock_message, bool throw_if_lost)
|
||||
{
|
||||
return std::make_unique<ZooKeeperLock>(zookeeper, lock_prefix, lock_name, lock_message);
|
||||
return std::make_unique<ZooKeeperLock>(zookeeper, lock_prefix, lock_name, lock_message, throw_if_lost);
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -32,7 +32,8 @@ public:
|
||||
const ZooKeeperPtr & zookeeper_,
|
||||
const std::string & lock_prefix_,
|
||||
const std::string & lock_name_,
|
||||
const std::string & lock_message_ = "");
|
||||
const std::string & lock_message_ = "",
|
||||
bool throw_if_lost_ = true);
|
||||
|
||||
~ZooKeeperLock();
|
||||
|
||||
@ -46,12 +47,13 @@ private:
|
||||
|
||||
std::string lock_path;
|
||||
std::string lock_message;
|
||||
bool throw_if_lost{true};
|
||||
LoggerPtr log;
|
||||
bool locked = false;
|
||||
|
||||
};
|
||||
|
||||
std::unique_ptr<ZooKeeperLock> createSimpleZooKeeperLock(
|
||||
const ZooKeeperPtr & zookeeper, const String & lock_prefix, const String & lock_name, const String & lock_message);
|
||||
const ZooKeeperPtr & zookeeper, const String & lock_prefix, const String & lock_name, const String & lock_message, bool throw_if_lost = true);
|
||||
|
||||
}
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
#include <Common/COW.h>
|
||||
#include <iostream>
|
||||
#include <base/defines.h>
|
||||
|
||||
|
||||
class IColumn : public COW<IColumn>
|
||||
@ -15,8 +16,6 @@ public:
|
||||
|
||||
virtual int get() const = 0;
|
||||
virtual void set(int value) = 0;
|
||||
|
||||
virtual MutablePtr test() const = 0;
|
||||
};
|
||||
|
||||
using ColumnPtr = IColumn::Ptr;
|
||||
@ -31,58 +30,63 @@ private:
|
||||
explicit ConcreteColumn(int data_) : data(data_) {}
|
||||
ConcreteColumn(const ConcreteColumn &) = default;
|
||||
|
||||
MutableColumnPtr test() const override
|
||||
{
|
||||
MutableColumnPtr res = create(123);
|
||||
return res;
|
||||
}
|
||||
|
||||
public:
|
||||
int get() const override { return data; }
|
||||
void set(int value) override { data = value; }
|
||||
};
|
||||
|
||||
template <typename ColPtr>
|
||||
void print(const ColumnPtr & x, const ColPtr & y)
|
||||
{
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
}
|
||||
|
||||
int main(int, char **)
|
||||
{
|
||||
ColumnPtr x = ConcreteColumn::create(1);
|
||||
ColumnPtr y = x;//x->test();
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
ColumnPtr y = x;
|
||||
print(x, y);
|
||||
chassert(x->get() == 1 && y->get() == 1);
|
||||
chassert(x->use_count() == 2 && y->use_count() == 2);
|
||||
chassert(x.get() == y.get());
|
||||
|
||||
{
|
||||
MutableColumnPtr mut = IColumn::mutate(std::move(y));
|
||||
mut->set(2);
|
||||
print(x, mut);
|
||||
chassert(x->get() == 1 && mut->get() == 2);
|
||||
chassert(x->use_count() == 1 && mut->use_count() == 1);
|
||||
chassert(x.get() != mut.get());
|
||||
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << mut->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << mut.get() << "\n";
|
||||
y = std::move(mut);
|
||||
}
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
print(x, y);
|
||||
chassert(x->get() == 1 && y->get() == 2);
|
||||
chassert(x->use_count() == 1 && y->use_count() == 1);
|
||||
chassert(x.get() != y.get());
|
||||
|
||||
x = ConcreteColumn::create(0);
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
print(x, y);
|
||||
chassert(x->get() == 0 && y->get() == 2);
|
||||
chassert(x->use_count() == 1 && y->use_count() == 1);
|
||||
chassert(x.get() != y.get());
|
||||
|
||||
{
|
||||
MutableColumnPtr mut = IColumn::mutate(std::move(y));
|
||||
mut->set(3);
|
||||
print(x, mut);
|
||||
chassert(x->get() == 0 && mut->get() == 3);
|
||||
chassert(x->use_count() == 1 && mut->use_count() == 1);
|
||||
chassert(x.get() != mut.get());
|
||||
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << mut->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << mut.get() << "\n";
|
||||
y = std::move(mut);
|
||||
}
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
print(x, y);
|
||||
chassert(x->get() == 0 && y->get() == 3);
|
||||
chassert(x->use_count() == 1 && y->use_count() == 1);
|
||||
chassert(x.get() != y.get());
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
#include <Common/COW.h>
|
||||
#include <iostream>
|
||||
#include <base/defines.h>
|
||||
|
||||
|
||||
class IColumn : public COW<IColumn>
|
||||
@ -61,47 +62,58 @@ public:
|
||||
void set(int value) override { wrapped->set(value); }
|
||||
};
|
||||
|
||||
template <typename ColPtr>
|
||||
void print(const ColumnPtr & x, const ColPtr & y)
|
||||
{
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
}
|
||||
|
||||
int main(int, char **)
|
||||
{
|
||||
ColumnPtr x = ColumnComposition::create(1);
|
||||
ColumnPtr y = x;
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
print(x, y);
|
||||
chassert(x->get() == 1 && y->get() == 1);
|
||||
chassert(x->use_count() == 2 && y->use_count() == 2);
|
||||
chassert(x.get() == y.get());
|
||||
|
||||
{
|
||||
MutableColumnPtr mut = IColumn::mutate(std::move(y));
|
||||
mut->set(2);
|
||||
print(x, mut);
|
||||
chassert(x->get() == 1 && mut->get() == 2);
|
||||
chassert(x->use_count() == 1 && mut->use_count() == 1);
|
||||
chassert(x.get() != mut.get());
|
||||
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << mut->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << mut.get() << "\n";
|
||||
y = std::move(mut);
|
||||
}
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
print(x, y);
|
||||
chassert(x->get() == 1 && y->get() == 2);
|
||||
chassert(x->use_count() == 1 && y->use_count() == 1);
|
||||
chassert(x.get() != y.get());
|
||||
|
||||
x = ColumnComposition::create(0);
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << y.get() << "\n";
|
||||
print(x, y);
|
||||
chassert(x->get() == 0 && y->get() == 2);
|
||||
chassert(x->use_count() == 1 && y->use_count() == 1);
|
||||
chassert(x.get() != y.get());
|
||||
|
||||
{
|
||||
MutableColumnPtr mut = IColumn::mutate(std::move(y));
|
||||
mut->set(3);
|
||||
print(x, mut);
|
||||
chassert(x->get() == 0 && mut->get() == 3);
|
||||
chassert(x->use_count() == 1 && mut->use_count() == 1);
|
||||
chassert(x.get() != mut.get());
|
||||
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << mut->use_count() << "\n";
|
||||
std::cerr << "addresses: " << x.get() << ", " << mut.get() << "\n";
|
||||
y = std::move(mut);
|
||||
}
|
||||
|
||||
std::cerr << "values: " << x->get() << ", " << y->get() << "\n";
|
||||
std::cerr << "refcounts: " << x->use_count() << ", " << y->use_count() << "\n";
|
||||
print(x, y);
|
||||
chassert(x->get() == 0 && y->get() == 3);
|
||||
chassert(x->use_count() == 1 && y->use_count() == 1);
|
||||
chassert(x.get() != y.get());
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -132,7 +132,9 @@ static PollPidResult pollPid(pid_t pid, int timeout_in_ms)
|
||||
if (kq == -1)
|
||||
return PollPidResult::FAILED;
|
||||
|
||||
struct kevent change = {.ident = 0};
|
||||
struct kevent change;
|
||||
change.ident = 0;
|
||||
|
||||
EV_SET(&change, pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, NULL);
|
||||
|
||||
int event_add_result = HANDLE_EINTR(kevent(kq, &change, 1, NULL, 0, NULL));
|
||||
@ -144,7 +146,9 @@ static PollPidResult pollPid(pid_t pid, int timeout_in_ms)
|
||||
return PollPidResult::FAILED;
|
||||
}
|
||||
|
||||
struct kevent event = {.ident = 0};
|
||||
struct kevent event;
|
||||
event.ident = 0;
|
||||
|
||||
struct timespec remaining_timespec = {.tv_sec = timeout_in_ms / 1000, .tv_nsec = (timeout_in_ms % 1000) * 1000000};
|
||||
int ready = HANDLE_EINTR(kevent(kq, nullptr, 0, &event, 1, &remaining_timespec));
|
||||
PollPidResult result = ready < 0 ? PollPidResult::FAILED : PollPidResult::RESTART;
|
||||
|
||||
@ -24,6 +24,7 @@ public:
|
||||
void updateHash(SipHash & hash) const override;
|
||||
|
||||
protected:
|
||||
/// 1 byte (`gcd_bytes_size` value) + 1 byte (`bytes_to_skip` value) + `bytes_to_skip` bytes (trash) + `gcd_bytes_size` bytes (gcd value) + (`source_size` - `bytes_to_skip`) bytes (data)
|
||||
UInt32 doCompressData(const char * source, UInt32 source_size, char * dest) const override;
|
||||
void doDecompressData(const char * source, UInt32 source_size, char * dest, UInt32 uncompressed_size) const override;
|
||||
UInt32 getMaxCompressedDataSize(UInt32 uncompressed_size) const override;
|
||||
@ -54,7 +55,7 @@ UInt32 CompressionCodecGCD::getMaxCompressedDataSize(UInt32 uncompressed_size) c
|
||||
{
|
||||
return uncompressed_size
|
||||
+ gcd_bytes_size // To store gcd
|
||||
+ 2; // Local header
|
||||
+ 2; // Values of `gcd_bytes_size` and `bytes_to_skip`
|
||||
}
|
||||
|
||||
uint8_t CompressionCodecGCD::getMethodByte() const
|
||||
@ -147,7 +148,7 @@ void decompressDataForType(const char * source, UInt32 source_size, char * dest,
|
||||
if (source_size - sizeof(T) != output_size)
|
||||
throw Exception(ErrorCodes::CANNOT_DECOMPRESS, "Cannot decompress GCD-encoded data");
|
||||
|
||||
memcpy(dest, source, source_size);
|
||||
memcpy(dest, source, source_size - sizeof(T));
|
||||
return;
|
||||
}
|
||||
|
||||
@ -160,6 +161,7 @@ void decompressDataForType(const char * source, UInt32 source_size, char * dest,
|
||||
source += sizeof(T);
|
||||
dest += sizeof(T);
|
||||
}
|
||||
chassert(source == source_end);
|
||||
}
|
||||
|
||||
}
|
||||
@ -209,6 +211,8 @@ void CompressionCodecGCD::doDecompressData(const char * source, UInt32 source_si
|
||||
throw Exception(ErrorCodes::CANNOT_DECOMPRESS, "Cannot decompress GCD-encoded data. File has wrong header");
|
||||
|
||||
UInt8 bytes_to_skip = uncompressed_size % bytes_size;
|
||||
chassert(bytes_to_skip == static_cast<UInt8>(source[1]));
|
||||
|
||||
UInt32 output_size = uncompressed_size - bytes_to_skip;
|
||||
|
||||
if (static_cast<UInt32>(2 + bytes_to_skip) > source_size)
|
||||
|
||||
@ -67,6 +67,9 @@ static constexpr auto DBMS_DEFAULT_MAX_PARSER_DEPTH = 1000;
|
||||
/// Default limit on the amount of backtracking of recursive descend parser.
|
||||
static constexpr auto DBMS_DEFAULT_MAX_PARSER_BACKTRACKS = 1000000;
|
||||
|
||||
/// Default limit on recursive CTE evaluation depth.
|
||||
static constexpr auto DBMS_RECURSIVE_CTE_MAX_EVALUATION_DEPTH = 1000;
|
||||
|
||||
/// Default limit on query size.
|
||||
static constexpr auto DBMS_DEFAULT_MAX_QUERY_SIZE = 262144;
|
||||
|
||||
|
||||
@ -50,6 +50,7 @@ class IColumn;
|
||||
M(MaxThreads, max_threads, 0, "The maximum number of threads to execute the request. By default, it is determined automatically.", 0) \
|
||||
M(Bool, use_concurrency_control, true, "Respect the server's concurrency control (see the `concurrent_threads_soft_limit_num` and `concurrent_threads_soft_limit_ratio_to_cores` global server settings). If disabled, it allows using a larger number of threads even if the server is overloaded (not recommended for normal usage, and needed mostly for tests).", 0) \
|
||||
M(MaxThreads, max_download_threads, 4, "The maximum number of threads to download data (e.g. for URL engine).", 0) \
|
||||
M(MaxThreads, max_parsing_threads, 0, "The maximum number of threads to parse data in input formats that support parallel parsing. By default, it is determined automatically", 0) \
|
||||
M(UInt64, max_download_buffer_size, 10*1024*1024, "The maximal size of buffer for parallel downloading (e.g. for URL engine) per each thread.", 0) \
|
||||
M(UInt64, max_read_buffer_size, DBMS_DEFAULT_BUFFER_SIZE, "The maximum size of the buffer to read from the filesystem.", 0) \
|
||||
M(UInt64, max_read_buffer_size_local_fs, 128*1024, "The maximum size of the buffer to read from local filesystem. If set to 0 then max_read_buffer_size will be used.", 0) \
|
||||
@ -112,6 +113,7 @@ class IColumn;
|
||||
M(Bool, azure_create_new_file_on_insert, false, "Enables or disables creating a new file on each insert in azure engine tables", 0) \
|
||||
M(Bool, s3_check_objects_after_upload, false, "Check each uploaded object to s3 with head request to be sure that upload was successful", 0) \
|
||||
M(Bool, s3_allow_parallel_part_upload, true, "Use multiple threads for s3 multipart upload. It may lead to slightly higher memory usage", 0) \
|
||||
M(Bool, azure_allow_parallel_part_upload, true, "Use multiple threads for azure multipart upload.", 0) \
|
||||
M(Bool, s3_throw_on_zero_files_match, false, "Throw an error, when ListObjects request cannot match any files", 0) \
|
||||
M(Bool, s3_disable_checksum, false, "Do not calculate a checksum when sending a file to S3. This speeds up writes by avoiding excessive processing passes on a file. It is mostly safe as the data of MergeTree tables is checksummed by ClickHouse anyway, and when S3 is accessed with HTTPS, the TLS layer already provides integrity while transferring through the network. While additional checksums on S3 give defense in depth.", 0) \
|
||||
M(UInt64, s3_retry_attempts, 100, "Setting for Aws::Client::RetryStrategy, Aws::Client does retries itself, 0 means no retries", 0) \
|
||||
@ -603,7 +605,6 @@ class IColumn;
|
||||
M(Bool, optimize_if_chain_to_multiif, false, "Replace if(cond1, then1, if(cond2, ...)) chains to multiIf. Currently it's not beneficial for numeric types.", 0) \
|
||||
M(Bool, optimize_multiif_to_if, true, "Replace 'multiIf' with only one condition to 'if'.", 0) \
|
||||
M(Bool, optimize_if_transform_strings_to_enum, false, "Replaces string-type arguments in If and Transform to enum. Disabled by default cause it could make inconsistent change in distributed query that would lead to its fail.", 0) \
|
||||
M(Bool, optimize_monotonous_functions_in_order_by, false, "Replace monotonous function with its argument in ORDER BY", 0) \
|
||||
M(Bool, optimize_functions_to_subcolumns, false, "Transform functions to subcolumns, if possible, to reduce amount of read data. E.g. 'length(arr)' -> 'arr.size0', 'col IS NULL' -> 'col.null' ", 0) \
|
||||
M(Bool, optimize_using_constraints, false, "Use constraints for query optimization", 0) \
|
||||
M(Bool, optimize_substitute_columns, false, "Use constraints for column substitution", 0) \
|
||||
@ -622,6 +623,7 @@ class IColumn;
|
||||
M(Bool, validate_polygons, true, "Throw exception if polygon is invalid in function pointInPolygon (e.g. self-tangent, self-intersecting). If the setting is false, the function will accept invalid polygons but may silently return wrong result.", 0) \
|
||||
M(UInt64, max_parser_depth, DBMS_DEFAULT_MAX_PARSER_DEPTH, "Maximum parser depth (recursion depth of recursive descend parser).", 0) \
|
||||
M(UInt64, max_parser_backtracks, DBMS_DEFAULT_MAX_PARSER_BACKTRACKS, "Maximum parser backtracking (how many times it tries different alternatives in the recursive descend parsing process).", 0) \
|
||||
M(UInt64, max_recursive_cte_evaluation_depth, DBMS_RECURSIVE_CTE_MAX_EVALUATION_DEPTH, "Maximum limit on recursive CTE evaluation depth", 0) \
|
||||
M(Bool, allow_settings_after_format_in_insert, false, "Allow SETTINGS after FORMAT, but note, that this is not always safe (note: this is a compatibility setting).", 0) \
|
||||
M(Seconds, periodic_live_view_refresh, 60, "Interval after which periodically refreshed live view is forced to refresh.", 0) \
|
||||
M(Bool, transform_null_in, false, "If enabled, NULL values will be matched with 'IN' operator as if they are considered equal.", 0) \
|
||||
@ -681,7 +683,7 @@ class IColumn;
|
||||
M(Bool, query_cache_share_between_users, false, "Allow other users to read entry in the query cache", 0) \
|
||||
M(Bool, enable_sharing_sets_for_mutations, true, "Allow sharing set objects build for IN subqueries between different tasks of the same mutation. This reduces memory usage and CPU consumption", 0) \
|
||||
\
|
||||
M(Bool, optimize_rewrite_sum_if_to_count_if, false, "Rewrite sumIf() and sum(if()) function countIf() function when logically equivalent", 0) \
|
||||
M(Bool, optimize_rewrite_sum_if_to_count_if, true, "Rewrite sumIf() and sum(if()) function countIf() function when logically equivalent", 0) \
|
||||
M(Bool, optimize_rewrite_aggregate_function_with_if, true, "Rewrite aggregate functions with if expression as argument when logically equivalent. For example, avg(if(cond, col, null)) can be rewritten to avgIf(cond, col)", 0) \
|
||||
M(Bool, optimize_rewrite_array_exists_to_has, false, "Rewrite arrayExists() functions to has() when logically equivalent. For example, arrayExists(x -> x = 1, arr) can be rewritten to has(arr, 1)", 0) \
|
||||
M(UInt64, insert_shard_id, 0, "If non zero, when insert into a distributed table, the data will be inserted into the shard `insert_shard_id` synchronously. Possible values range from 1 to `shards_number` of corresponding distributed table", 0) \
|
||||
@ -706,7 +708,6 @@ class IColumn;
|
||||
M(Bool, engine_file_skip_empty_files, false, "Allows to skip empty files in file table engine", 0) \
|
||||
M(Bool, engine_url_skip_empty_files, false, "Allows to skip empty files in url table engine", 0) \
|
||||
M(Bool, enable_url_encoding, true, " Allows to enable/disable decoding/encoding path in uri in URL table engine", 0) \
|
||||
M(Bool, allow_experimental_database_replicated, false, "Allow to create databases with Replicated engine", 0) \
|
||||
M(UInt64, database_replicated_initial_query_timeout_sec, 300, "How long initial DDL query should wait for Replicated database to precess previous DDL queue entries", 0) \
|
||||
M(Bool, database_replicated_enforce_synchronous_settings, false, "Enforces synchronous waiting for some queries (see also database_atomic_wait_for_drop_and_detach_synchronously, mutation_sync, alter_sync). Not recommended to enable these settings.", 0) \
|
||||
M(UInt64, max_distributed_depth, 5, "Maximum distributed query depth", 0) \
|
||||
@ -739,6 +740,7 @@ class IColumn;
|
||||
M(Bool, query_plan_split_filter, true, "Allow to split filters in the query plan", 0) \
|
||||
M(Bool, query_plan_merge_expressions, true, "Allow to merge expressions in the query plan", 0) \
|
||||
M(Bool, query_plan_filter_push_down, true, "Allow to push down filter by predicate query plan step", 0) \
|
||||
M(Bool, query_plan_convert_outer_join_to_inner_join, true, "Allow to convert OUTER JOIN to INNER JOIN if filter after JOIN always filters default values", 0) \
|
||||
M(Bool, query_plan_optimize_prewhere, true, "Allow to push down filter to PREWHERE expression for supported storages", 0) \
|
||||
M(Bool, query_plan_execute_functions_after_sorting, true, "Allow to re-order functions after sorting", 0) \
|
||||
M(Bool, query_plan_reuse_storage_ordering_for_window_functions, true, "Allow to use the storage sorting for window functions", 0) \
|
||||
@ -934,6 +936,7 @@ class IColumn;
|
||||
MAKE_OBSOLETE(M, Bool, allow_experimental_query_cache, true) \
|
||||
MAKE_OBSOLETE(M, Bool, allow_experimental_alter_materialized_view_structure, true) \
|
||||
MAKE_OBSOLETE(M, Bool, allow_experimental_shared_merge_tree, true) \
|
||||
MAKE_OBSOLETE(M, Bool, allow_experimental_database_replicated, true) \
|
||||
\
|
||||
MAKE_OBSOLETE(M, Milliseconds, async_insert_stale_timeout_ms, 0) \
|
||||
MAKE_OBSOLETE(M, StreamingHandleErrorMode, handle_kafka_error_mode, StreamingHandleErrorMode::DEFAULT) \
|
||||
@ -978,6 +981,7 @@ class IColumn;
|
||||
MAKE_OBSOLETE(M, Bool, allow_experimental_undrop_table_query, true) \
|
||||
MAKE_OBSOLETE(M, Bool, allow_experimental_s3queue, true) \
|
||||
MAKE_OBSOLETE(M, Bool, query_plan_optimize_primary_key, true) \
|
||||
MAKE_OBSOLETE(M, Bool, optimize_monotonous_functions_in_order_by, false) \
|
||||
|
||||
/** The section above is for obsolete settings. Do not add anything there. */
|
||||
|
||||
|
||||
@ -88,14 +88,20 @@ static std::map<ClickHouseVersion, SettingsChangesHistory::SettingsChanges> sett
|
||||
{"24.5", {{"allow_deprecated_functions", true, false, "Allow usage of deprecated functions"},
|
||||
}},
|
||||
{"24.4", {{"input_format_json_throw_on_bad_escape_sequence", true, true, "Allow to save JSON strings with bad escape sequences"},
|
||||
{"max_parsing_threads", 0, 0, "Add a separate setting to control number of threads in parallel parsing from files"},
|
||||
{"ignore_drop_queries_probability", 0, 0, "Allow to ignore drop queries in server with specified probability for testing purposes"},
|
||||
{"lightweight_deletes_sync", 2, 2, "The same as 'mutation_sync', but controls only execution of lightweight deletes"},
|
||||
{"query_cache_system_table_handling", "save", "throw", "The query cache no longer caches results of queries against system tables"},
|
||||
{"input_format_json_ignore_unnecessary_fields", false, true, "Ignore unnecessary fields and not parse them. Enabling this may not throw exceptions on json strings of invalid format or with duplicated fields"},
|
||||
{"input_format_hive_text_allow_variable_number_of_columns", false, true, "Ignore extra columns in Hive Text input (if file has more columns than expected) and treat missing fields in Hive Text input as default values."},
|
||||
{"first_day_of_week", "Monday", "Monday", "Added a setting for the first day of the week for date/time functions"},
|
||||
{"allow_experimental_database_replicated", false, true, "Database engine Replicated is now in Beta stage"},
|
||||
{"temporary_data_in_cache_reserve_space_wait_lock_timeout_milliseconds", (10 * 60 * 1000), (10 * 60 * 1000), "Wait time to lock cache for sapce reservation in temporary data in filesystem cache"},
|
||||
}},
|
||||
{"optimize_rewrite_sum_if_to_count_if", false, true, "Only available for the analyzer, where it works correctly"},
|
||||
{"azure_allow_parallel_part_upload", "true", "true", "Use multiple threads for azure multipart upload."},
|
||||
{"max_recursive_cte_evaluation_depth", DBMS_RECURSIVE_CTE_MAX_EVALUATION_DEPTH, DBMS_RECURSIVE_CTE_MAX_EVALUATION_DEPTH, "Maximum limit on recursive CTE evaluation depth"},
|
||||
{"query_plan_convert_outer_join_to_inner_join", false, true, "Allow to convert OUTER JOIN to INNER JOIN if filter after JOIN always filters default values"},
|
||||
}},
|
||||
{"24.3", {{"s3_connect_timeout_ms", 1000, 1000, "Introduce new dedicated setting for s3 connection timeout"},
|
||||
{"allow_experimental_shared_merge_tree", false, true, "The setting is obsolete"},
|
||||
{"use_page_cache_for_disks_without_file_cache", false, false, "Added userspace page cache"},
|
||||
|
||||
@ -48,11 +48,6 @@ bool queryProfilerWorks() { return false; }
|
||||
namespace DB
|
||||
{
|
||||
|
||||
namespace ErrorCodes
|
||||
{
|
||||
extern const int INVALID_SETTING_VALUE;
|
||||
}
|
||||
|
||||
/// Update some settings defaults to avoid some known issues.
|
||||
void applySettingsQuirks(Settings & settings, LoggerPtr log)
|
||||
{
|
||||
@ -95,7 +90,7 @@ void applySettingsQuirks(Settings & settings, LoggerPtr log)
|
||||
}
|
||||
}
|
||||
|
||||
void doSettingsSanityCheck(const Settings & current_settings)
|
||||
void doSettingsSanityCheckClamp(Settings & current_settings, LoggerPtr log)
|
||||
{
|
||||
auto getCurrentValue = [¤t_settings](const std::string_view name) -> Field
|
||||
{
|
||||
@ -106,8 +101,13 @@ void doSettingsSanityCheck(const Settings & current_settings)
|
||||
};
|
||||
|
||||
UInt64 max_threads = getCurrentValue("max_threads").get<UInt64>();
|
||||
if (max_threads > getNumberOfPhysicalCPUCores() * 65536)
|
||||
throw Exception(ErrorCodes::INVALID_SETTING_VALUE, "Sanity check: Too many threads requested ({})", max_threads);
|
||||
UInt64 max_threads_max_value = 256 * getNumberOfPhysicalCPUCores();
|
||||
if (max_threads > max_threads_max_value)
|
||||
{
|
||||
if (log)
|
||||
LOG_WARNING(log, "Sanity check: Too many threads requested ({}). Reduced to {}", max_threads, max_threads_max_value);
|
||||
current_settings.set("max_threads", max_threads_max_value);
|
||||
}
|
||||
|
||||
constexpr UInt64 max_sane_block_rows_size = 4294967296; // 2^32
|
||||
std::unordered_set<String> block_rows_settings{
|
||||
@ -122,7 +122,11 @@ void doSettingsSanityCheck(const Settings & current_settings)
|
||||
{
|
||||
auto block_size = getCurrentValue(setting).get<UInt64>();
|
||||
if (block_size > max_sane_block_rows_size)
|
||||
throw Exception(ErrorCodes::INVALID_SETTING_VALUE, "Sanity check: '{}' value is too high ({})", setting, block_size);
|
||||
{
|
||||
if (log)
|
||||
LOG_WARNING(log, "Sanity check: '{}' value is too high ({}). Reduced to {}", setting, block_size, max_sane_block_rows_size);
|
||||
current_settings.set(setting, max_sane_block_rows_size);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -10,6 +10,6 @@ struct Settings;
|
||||
/// Update some settings defaults to avoid some known issues.
|
||||
void applySettingsQuirks(Settings & settings, LoggerPtr log = nullptr);
|
||||
|
||||
/// Verify that some settings have sane values. Throws if not
|
||||
void doSettingsSanityCheck(const Settings & settings);
|
||||
/// Verify that some settings have sane values. Alters the value to a reasonable one if not
|
||||
void doSettingsSanityCheckClamp(Settings & settings, LoggerPtr log);
|
||||
}
|
||||
|
||||
@ -1140,8 +1140,10 @@ void DatabaseReplicated::recoverLostReplica(const ZooKeeperPtr & current_zookeep
|
||||
}
|
||||
LOG_INFO(log, "All tables are created successfully");
|
||||
|
||||
chassert(max_log_ptr_at_creation || our_log_ptr);
|
||||
UInt32 first_entry_to_mark_finished = new_replica ? max_log_ptr_at_creation : our_log_ptr;
|
||||
/// NOTE first_entry_to_mark_finished can be 0 if our replica has crashed just after creating its nodes in ZK,
|
||||
/// so it's a new replica, but after restarting we don't know max_log_ptr_at_creation anymore...
|
||||
/// It's a very rare case, and it's okay if some queries throw TIMEOUT_EXCEEDED when waiting for all replicas
|
||||
if (first_entry_to_mark_finished)
|
||||
{
|
||||
/// If the replica is new and some of the queries applied during recovery
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user