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14598 Commits

Author SHA1 Message Date
Timur Solodovnikov
1f0250f730 Updating url table functions docs 2023-05-22 13:00:38 -07:00
avogar
88e4c93abc Merge branch 'master' of github.com:ClickHouse/ClickHouse into urlCluster 2023-05-22 19:19:57 +00:00
Dan Roscigno
bb91e3ac2e
Merge pull request #50106 from ClickHouse/DanRoscigno-patch-5 
Dan roscigno patch 5
 2023-05-22 13:41:03 -04:00
DanRoscigno
eb7b5a5bb7 add more info to NLP docs 2023-05-22 13:02:39 -04:00
Dan Roscigno
ebff47ad3a
Update nlp-functions.md 2023-05-22 12:14:23 -04:00
Nikolay Degterinsky
d4b89cb643
Merge pull request #49356 from Ziy1-Tan/vcol 
Support for `_path` and `_file` virtual columns for table function `url`.
 2023-05-22 18:10:32 +02:00
Robert Schulze
df436b2cd4
Spark compatibility: Add new function space() 2023-05-22 14:52:51 +00:00
Kruglov Pavel
b5cad024e0
Merge branch 'master' into urlCluster 2023-05-22 14:59:34 +02:00
Victor Krasnov
a7b641134a Follow the reviewer's recommendations regarding the documentation 2023-05-22 08:28:11 +00:00
lgbo-ustc
cc93f9ab52 update tests for flaky test 2023-05-22 10:17:41 +08:00
Han Fei
2625696591
Merge branch 'master' into hanfei/regexp-doc 2023-05-21 23:42:01 +02:00
Robert Schulze
2a9ff30a7f
Merge pull request #49380 from azat/dict/hashed-memory 
Improve memory usage and speed of SPARSE_HASHED/HASHED dictionaries
 2023-05-21 15:46:41 +02:00
Robert Schulze
491cf8b6e1
Fix minor mistakes 2023-05-21 13:43:05 +00:00
Robert Schulze
9d9d4e3d62
Some fixups 2023-05-21 13:40:52 +00:00
Robert Schulze
312f751503
Uppercase remaining SQL keywords 2023-05-21 13:08:55 +00:00
Yusuke Tanaka
2444e93ad7
Fix broken link to async_insert_deduplicate in doc 2023-05-21 14:42:17 +09:00
Alexey Milovidov
2323542e47
Merge pull request #50022 from ClickHouse/geo-types-production-ready 
Geo types are production ready
 2023-05-20 02:02:23 +03:00
Dan Roscigno
1ded6d6409
Update grant.md 2023-05-19 16:53:26 -04:00
Dan Roscigno
ceb9b8cbc8
Merge branch 'master' into allow_experimental_parallel_reading_from_replicas 2023-05-19 14:25:07 -04:00
Dan Roscigno
1ef93e85aa
Merge branch 'master' into hanfei/regexp-doc 2023-05-19 14:23:23 -04:00
Dan Roscigno
8745b8196d
Merge pull request #49987 from den-crane/patch-67 
Doc. Fix in partition description, for consistency with other documentation.
 2023-05-19 14:18:33 -04:00
Dan Roscigno
75727bf072
Merge pull request #49967 from DanRoscigno/docs-ddl-named-collections 
Docs ddl named collections
 2023-05-19 14:16:22 -04:00
DanRoscigno
4260e86b1a fix typo 2023-05-19 13:00:18 -04:00
Sergei Trifonov
90872c2671
Update query_log.md 
Fix links to data types
 2023-05-19 17:22:37 +02:00
DanRoscigno
ff63a73cf5 review 2023-05-19 11:03:53 -04:00
DanRoscigno
10a382bd12 add ALTER and DROP 2023-05-19 10:49:43 -04:00
mateng915
5237dd0245
New system table zookeeper connection (#45245) 
* Feature: Support new system table to show which zookeeper node be connected

Description:
============
Currently we have no place to check which zk node be connected otherwise using
lsof command. It not convenient

Solution:
=========
Implemented a new system table, system.zookeeper_host when CK Server has zk
this table will show the zk node dir which connected by current CK server

Noted: This table can support multi-zookeeper cluster scenario.

* fixed review comments

* added test case

* update test cases

* remove unused code

* fixed review comments and removed unused code

* updated test cases for print host, port and is_expired

* modify the code comments

* fixed CI Failed

* fixed code style check failure

* updated test cases by added Tags

* update test reference

* update test cases

* added system.zookeeper_connection doc

* Update docs/en/operations/system-tables/zookeeper_connection.md

* Update docs/en/operations/system-tables/zookeeper_connection.md

* Update docs/en/operations/system-tables/zookeeper_connection.md

---------

Co-authored-by: Alexander Tokmakov <tavplubix@gmail.com>
 2023-05-19 17:06:43 +03:00
Alexey Milovidov
f5506210d6 Geo types are production ready 2023-05-19 12:43:55 +02:00
Azat Khuzhin
2b240d3721 Improve documentation for HASHED/SPARSE_HASHED/COMPLEX_KEY_HASHED/COMPLEX_KEY_SPARSE_HASHED 
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2023-05-19 06:07:21 +02:00
Azat Khuzhin
2996b38606 Add ability to configure maximum load factor for the HASHED/SPARSE_HASHED layout 
As it turns out, HashMap/PackedHashMap works great even with max load
factor of 0.99. By "great" I mean it least it works faster then
google sparsehash, and not to mention it's friendliness to the memory
allocator (it has zero fragmentation since it works with a continuious
memory region, in comparison to the sparsehash that doing lots of
realloc, which jemalloc does not like, due to it's slabs).

Here is a table of different setups:

settings                         | load (sec) | read (sec) | read (million rows/s) | bytes_allocated | RSS
-                                | -          | -          | -                     | -               | -
HASHED upstream                  | -          | -          | -                     | -               | 35GiB
SPARSE_HASHED upstream           | -          | -          | -                     | -               | 26GiB
-                                | -          | -          | -                     | -               | -
sparse_hash_map glibc hashbench  | -          | -          | -                     | -               | 17.5GiB
sparse_hash_map packed allocator | 101.878    | 231.48     | 4.32                  | -               | 17.7GiB
PackedHashMap 0.5                | 15.514     | 42.35      | 23.61                 | 20GiB           | 22GiB
hashed 0.95                      | 34.903     | 115.615    | 8.65                  | 16GiB           | 18.7GiB
**PackedHashMap 0.95**           | **93.6**   | **19.883** | **10.68**             | **10GiB**       | **12.8GiB**
PackedHashMap 0.99               | 26.113     | 83.6       | 11.96                 | 10GiB           | 12.3GiB

As it shows, PackedHashMap with 0.95 max_load_factor, eats 2.6x less
memory then SPARSE_HASHED in upstream, and it also 2x faster for read!

v2: fix grower
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2023-05-19 06:07:21 +02:00
Denny Crane
94fe224935
Update partition.md 2023-05-18 10:06:59 -03:00
Victor Krasnov
3c68d63213 Amend the toUnixTimestamp function documentation 2023-05-18 09:11:48 +00:00
libin
d294ecbc16
Update grant.md 
docs: Modifying grant example
 2023-05-18 15:50:19 +08:00
Alexey Gerasimchuk
1fb9e36b81
Merge branch 'master' into ADQM-808 2023-05-18 07:59:02 +10:00
Rich Raposa
03b5bfe218
Merge pull request #49968 from ClickHouse/reddit 
Add Reddit comments to datasets
 2023-05-17 15:26:29 -06:00
rfraposa
6a136897e3 Create reddit-comments.md 2023-05-17 13:23:53 -06:00
Han Fei
549af4d351 address comments 2023-05-17 21:23:32 +02:00
DanRoscigno
a1fc96953f reorder 2023-05-17 14:48:16 -04:00
Dan Roscigno
addc0c0ece
Merge branch 'master' into allow_experimental_parallel_reading_from_replicas 2023-05-17 13:20:14 -04:00
avogar
846804fed0 Add separate handshake_timeout for receiving Hello packet from replica 2023-05-17 11:39:04 +00:00
Alexey Gerasimchuck
253fadb676 Updated documentation for --multiquery 2023-05-17 03:45:09 +00:00
Thom O'Connor
15cb627688
Update postgresql.md 
The type cannot be optional, so we need to be clear in the docs that [type1] [type2] cannot be in square brackets, so removed them
 2023-05-16 16:35:41 -06:00
DanRoscigno
64bf477ff2 add DDL 2023-05-16 14:58:04 -04:00
Kruglov Pavel
4530f38fdf
Merge branch 'master' into urlCluster 2023-05-16 16:21:23 +02:00
Han Fei
7df0e9d933 fix broken link 2023-05-16 15:33:08 +02:00
Han Fei
a40d86b921
Update docs/en/sql-reference/dictionaries/index.md 
Co-authored-by: Sergei Trifonov <svtrifonov@gmail.com>
 2023-05-16 11:22:42 +02:00
Han Fei
ed5906f15d
Update docs/en/sql-reference/dictionaries/index.md 
Co-authored-by: Sergei Trifonov <svtrifonov@gmail.com>
 2023-05-16 11:22:31 +02:00
Han Fei
31b8e3c489
Update docs/en/sql-reference/dictionaries/index.md 
Co-authored-by: Sergei Trifonov <svtrifonov@gmail.com>
 2023-05-16 11:22:24 +02:00
Han Fei
e4e473ef30
Update docs/en/sql-reference/dictionaries/index.md 
Co-authored-by: Sergei Trifonov <svtrifonov@gmail.com>
 2023-05-16 11:22:14 +02:00
Han Fei
29aa960377 refine docs for regexp tree dictionary 2023-05-16 09:07:35 +02:00
Robert Schulze
59bc3e25be
Merge pull request #49824 from AVMusorin/allow-alias-column-kafka 
KafkaEngine: Allow usage of Alias column type
 2023-05-15 23:40:03 +02:00
robot-ch-test-poll4
e58d1821eb
Merge pull request #49788 from lesandie/master 
Reworked Local File Cache documentation
 2023-05-15 21:38:43 +02:00
Vitaly Baranov
bf3336a84e
Merge pull request #47640 from ilejn/row_policy_template 
Row policy for database
 2023-05-15 20:05:15 +02:00
avogar
f9e0eb47d7 Merge branch 'master' of github.com:ClickHouse/ClickHouse into urlCluster 2023-05-15 16:35:24 +00:00
Diego Nieto
bf201a09b7
Update docs/en/operations/storing-data.md 
@kssenii comments

Co-authored-by: Kseniia Sumarokova <54203879+kssenii@users.noreply.github.com>
 2023-05-15 15:43:39 +02:00
AVMusorin
418a61a68c
Allow using Alias column type for KafkaEngine 
```
create table kafka
(
 a UInt32,
 a_str String Alias toString(a)
) engine = Kafka;

create table data
(
  a UInt32;
  a_str String
) engine = MergeTree
order by tuple();

create materialized view data_mv to data
(
  a UInt32,
  a_str String
) as
select a, a_str from kafka;
```
Alias type works as expected in comparison with MATERIALIZED/EPHEMERAL
or column with default expression.

Ref: https://github.com/ClickHouse/ClickHouse/pull/47138

Co-authored-by: Azat Khuzhin <a3at.mail@gmail.com>
 2023-05-15 15:39:58 +02:00
Diego Nieto
52fdc49ef3
Merge branch 'master' into master 2023-05-15 10:28:31 +02:00
robot-clickhouse
bec4edad65
Merge pull request #49856 from darkkeks/fix-date-time-functions-toc 
[docs] Remove "example" section from date-time-functions page toc
 2023-05-14 23:43:00 +02:00
Ilya Golshtein
9ef610040f row_policy_template - table * is respected 2023-05-13 22:30:02 +00:00
Ilya Golshtein
7fa6ea4ccc row policy template: tests and code cleanup, code review changes 2023-05-13 22:30:02 +00:00
Nikolay Degterinsky
a2e7c77fe2
Merge pull request #49860 from ucasfl/doc 
update doc
 2023-05-13 23:26:40 +02:00
flynn
f775a466f7 update doc 2023-05-13 16:12:51 +00:00
Robert Schulze
c4f7c3daa1
Merge branch 'master' into rs/entropy-learned-hashing 2023-05-13 17:33:12 +02:00
Robert Schulze
0d9a6b5545
Update QPL docs 2023-05-13 13:26:47 +00:00
darkkeks
2b793e3a14 [docs] Remove "example" section from date-time-functions page toc 2023-05-13 16:22:17 +03:00
Alexey Milovidov
6df457dcaf
Merge pull request #49811 from jinjunzh/iaadeflate_swpath_compat 
qpl_deflate codec lower the minimum SIMD version to SSE 4.2
 2023-05-13 04:21:54 +03:00
Rich Raposa
944100c4b1
Merge pull request #49841 from nellicus/dedicate_keepers_prod 
[docs] strongly recommend dedicated keeper in prod
 2023-05-12 14:08:47 -06:00
Robert Schulze
f011421f32
Merge pull request #49825 from den-crane/patch-66 
Doc. Note about why Google CityHash <> cityHash64
 2023-05-12 20:01:58 +02:00
nellicus
5366da8bcf fix links 2023-05-12 18:07:38 +02:00
nellicus
2960a0420b strongly recommend ded keeper in prod 2023-05-12 17:58:41 +02:00
robot-ch-test-poll1
6314813e7b
Merge pull request #49840 from yakkomajuri/patch-3 
Minor correction to example in COMMENT COLUMN docs
 2023-05-12 17:31:58 +02:00
Yakko Majuri
eb6cbe63ee
Minor correction to example in COMMENT COLUMN 2023-05-12 11:54:53 -03:00
Robert Schulze
5133597661
+m 2023-05-12 16:51:47 +02:00
Robert Schulze
9d34233e65
Merge branch 'master' into iaadeflate_swpath_compat 2023-05-12 16:39:17 +02:00
Robert Schulze
5235f52de3
Small rewrite, removed note about farm hash (it seemed fragile: https://github.com/ClickHouse/ClickHouse/issues/8354#issuecomment-974808920) 2023-05-12 16:38:32 +02:00
DanRoscigno
b8b4723aa6 add max_rows_in_set_to_optimize_join docs 2023-05-12 10:19:30 -04:00
Diego Nieto
78127d8a2c
Merge branch 'ClickHouse:master' into master 2023-05-12 16:08:48 +02:00
jinjunzh
e72a6fe973 qpl-deflate codec lower the minimum SIMD version to SSE 4.2 2023-05-12 09:56:01 -04:00
DanRoscigno
0f7c0859b0 add allow_experimental_parallel_reading_from_replicas docs 2023-05-12 09:22:29 -04:00
Dan Roscigno
596e50ebc0
Merge pull request #49830 from DanRoscigno/docs-udfs 
uplevel UDFs and link
 2023-05-12 09:05:39 -04:00
DanRoscigno
0b9e575588 uplevel UDFs and link 2023-05-12 08:05:38 -04:00
Robert Schulze
b9c185af44
Merge pull request #49678 from azat/build/llvm-16 
Switch to LLVM/clang 16 (16.0.3)
 2023-05-12 13:47:36 +02:00
Denny Crane
051456ba92
Update hash-functions.md 2023-05-12 08:33:27 -03:00
Diego Nieto
ba44b23889
Merge branch 'ClickHouse:master' into master 2023-05-12 13:31:12 +02:00
Denny Crane
47b27ca5fb
Update hash-functions.md 2023-05-12 08:23:02 -03:00
Dan Roscigno
56a563f2bd
Merge pull request #49810 from DanRoscigno/doc-greatest-least 
add greatest() and least() docs
 2023-05-12 05:52:01 -04:00
Diego Nieto
7dcaa0a25c
Merge branch 'master' into master 2023-05-12 11:46:37 +02:00
Diego Nieto (lesandie)
8fc0083a26 Rewrite following conversation/comments 2023-05-12 11:45:38 +02:00
Han Fei
07341a04fd
Merge pull request #49666 from hanfei1991/hanfei/regexp-dict-read 
Support `dictionary` table function for `RegExpTreeDictionary`
 2023-05-12 11:40:46 +02:00
Diego Nieto
4b69a203ea
Merge branch 'ClickHouse:master' into master 2023-05-12 10:07:18 +02:00
DanRoscigno
11f78fed2b fix markdown spaces 2023-05-11 21:40:47 -04:00
DanRoscigno
a14ad025ee add greatest and least docs 2023-05-11 21:33:36 -04:00
Alexey Milovidov
cf2b158072
Update build-cross-riscv.md 2023-05-12 03:18:43 +03:00
robot-clickhouse
6f19a374f2
Merge pull request #49791 from den-crane/patch-65 
Update settings.md
 2023-05-12 01:02:58 +02:00
robot-ch-test-poll2
91fd3a3d16
Merge pull request #49745 from jrdi/improve-local-cache-documentation 
Improve local cache documentation
 2023-05-12 00:30:19 +02:00
Han Fei
ef74e64336 address comments 2023-05-11 22:18:08 +02:00
Robert Schulze
37c1b1aa58
Some fixups 2023-05-11 18:49:05 +00:00
Denny Crane
fcf1dd52bc
Update settings.md 2023-05-11 14:05:30 -03:00
Vitaly Baranov
ec011b9113
Merge branch 'master' into user-grants-from-config 2023-05-11 17:08:06 +02:00
Rich Raposa
2f8a530bf3
Merge pull request #49741 from ClickHouse/rfraposa-patch-2 
Update async_insert explanation in docs
 2023-05-11 08:36:53 -06:00
Diego Nieto (lesandie)
10e0c1d832 Reworked documentation using local cache section 2023-05-11 16:06:14 +02:00
Diego Nieto (lesandie)
26743b5439 Fix Local Cache documentation explanations 2023-05-11 15:36:47 +02:00
avogar
3ee8de792c Merge branch 'master' of github.com:ClickHouse/ClickHouse into urlCluster 2023-05-11 12:46:20 +00:00
Jordi Villar
3780a07e46 Improve local cache documentation 2023-05-11 12:40:48 +02:00
Alexey Milovidov
91ffe8be73
Merge branch 'master' into build/llvm-16 2023-05-11 05:38:40 +03:00
Azat Khuzhin
d56e1423ef
Merge branch 'master' into build/llvm-16 2023-05-10 21:23:26 +02:00
Dan Roscigno
8f573aba2d
docs for connect_timeout_with_failover_secure_ms 
closes #47267
 2023-05-10 14:00:05 -04:00
Rich Raposa
4be0372eb4
Update settings.md 
Removed the mention that async_insert is  only useful for HTTP
 2023-05-10 09:48:33 -06:00
Alexey Milovidov
33a58aacea
Merge pull request #49719 from ClickHouse/make-projections-non-experimental 
Make projections production-ready
 2023-05-10 18:07:02 +03:00
Azat Khuzhin
a0cc5b7e47 Merge remote-tracking branch 'u/master' into build/llvm-16 2023-05-10 16:28:36 +02:00
vdimir
1b7f54e886
Merge pull request #46467 from bigo-sg/first_value 2023-05-10 14:56:14 +02:00
Roman Vasin
632c0eeefc
Add support of temporary tables in FROM part of ATTACH|REPLACE PARTITION FROM (#49436) 
* Add temp tables after FROM

* Resolve works fine with temp and non-temp tables

* Add usage of temporary table in  00626_replace_partition_from_table test

* Update documentation

* Add tests for ReplicatedMergeTree

* Move tests into 02731_replace_partition_from_temporary_table
 2023-05-10 15:25:12 +03:00
Robert Schulze
bf3eacf697
Merge pull request #49730 from ClickHouse/rs/docs-fix-sidebar 
Docs: Fix sidebar label for dictionary table function
 2023-05-10 13:54:29 +02:00
Robert Schulze
405e371aca
Docs: Fix sidebar label for dictionary table function 2023-05-10 11:18:15 +00:00
Alexey Milovidov
8a6e07f0ea Make projections production-ready 2023-05-10 03:35:13 +02:00
alekar
67ad681e41
Merge branch 'master' into 48716 2023-05-09 14:34:32 -07:00
Dan Roscigno
915903b42d
Merge pull request #49704 from pkit/pkit/docs_is_deleted 
docs: fix the is_deleted option docs
 2023-05-09 16:59:25 -04:00
alekar
605991d4d5
Merge branch 'master' into 48716 2023-05-09 13:38:11 -07:00
Azat Khuzhin
be39e8e566 Merge remote-tracking branch 'u/master' into build/llvm-16 
Conflicts:
	docker/test/codebrowser/Dockerfile
 2023-05-09 20:40:43 +02:00
Azat Khuzhin
432250a85d Update instructions for building under OSX to clang-16 
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2023-05-09 20:28:38 +02:00
DanRoscigno
0a83f2aee8 fix broken note rendering 2023-05-09 13:29:59 -04:00
Dan Roscigno
c75e056d98
Update docs/en/engines/table-engines/mergetree-family/replacingmergetree.md 2023-05-09 13:18:42 -04:00
Dan Roscigno
199838e7fb
Update docs/en/engines/table-engines/mergetree-family/replacingmergetree.md 2023-05-09 13:18:35 -04:00
Dan Roscigno
cd62df4887
Update docs/en/engines/table-engines/mergetree-family/replacingmergetree.md 2023-05-09 13:18:26 -04:00
Dan Roscigno
582767e9ab
Update docs/en/engines/table-engines/mergetree-family/replacingmergetree.md 2023-05-09 13:18:18 -04:00
Dan Roscigno
2e20603b01
Update docs/en/engines/table-engines/mergetree-family/replacingmergetree.md 2023-05-09 13:18:09 -04:00
Constantine Peresypkin
cef9862628 docs: fix the is_deleted option docs 
- `is_deleted` type __must__ be `UInt8` and not `Int8`
- strange wording on how `clean_deleted_rows` works is fixed
 2023-05-09 12:40:33 -04:00
Duyet Le
4c7849a9c8
Fix incorrect docs for use_query_cache 2023-05-09 17:08:49 +07:00
vdimir
6bb552377f
Merge pull request #49085 from ClibMouse/saveIntervals 2023-05-09 11:33:05 +02:00
Alexey Milovidov
512db049e0
Merge pull request #49652 from vrfn/documentation-update-backup-all 
Documentation: reflect that `BACKUP ALL` is supported
 2023-05-09 08:05:30 +03:00
Alexey Milovidov
a8bdb20fc4
Merge pull request #48787 from ClickHouse/background-memory-tracker 
Add MemoryTracker for the background tasks [Resubmit]
 2023-05-09 07:58:36 +03:00
Azat Khuzhin
c37fe64040 Merge remote-tracking branch 'u/master' into build/llvm-16 2023-05-08 22:33:52 +02:00
larryluogit
2341c5e6a3
Merge branch 'master' into saveIntervals 2023-05-08 12:49:21 -04:00
Robert Schulze
93a2b44702
Add docs 2023-05-08 13:11:21 +00:00
Vincent
a046d8fd4c Reflect that BACKUP now supports ALL in docs 2023-05-08 08:18:52 +00:00
Robert Schulze
d8d2b0af76
Merge pull request #49466 from ucasfl/str_to_map 
add alias str_to_map and mapFromString for extractKeyValuePairs
 2023-05-08 10:11:06 +02:00
Dan Roscigno
0830153a52
Merge pull request #49501 from ivan-klass/patch-1 
Note for multiple arrayJoin of same array expression
 2023-05-07 20:17:09 -04:00
Robert Schulze
f4eabd967d
Merge pull request #49603 from ClickHouse/rs/makedate-mysql 
Implement a MySQL-compatible variant of makeDate()
 2023-05-07 21:51:03 +02:00
Robert Schulze
3cadcaeaf0
Add new aliases to docs 2023-05-07 19:24:49 +00:00
Robert Schulze
d5f08ba87b
Move extractKeyValuePairs*() docs into maps docs 2023-05-07 19:22:29 +00:00
Robert Schulze
d614bde1c7
Fixup docs of extractKeyValuePairs*() 2023-05-07 19:20:16 +00:00
Mikhail f. Shiryaev
e1fa92e078
Add openSUSE and SLES to docs dictionary, sort it 2023-05-07 19:30:55 +02:00
Mikhail f. Shiryaev
b2963eb4be
Add documentation how to install clickhouse on SUSE family 2023-05-07 17:59:46 +02:00
robot-clickhouse-ci-1
d1ad3ea24e
Merge pull request #49593 from ClickHouse/rs/qc-empty-chunk 
Query Cache: Safeguard against empty chunks
 2023-05-07 02:20:54 +02:00
Robert Schulze
c893302a08
Implement a MySQL-compatible variant of makeDate() 
Fixes #49143
 2023-05-06 20:11:36 +00:00
Robert Schulze
2986c28761
Small fixes 2023-05-06 18:12:10 +00:00
Alexey Milovidov
54163b87ec
Merge pull request #47977 from ClickHouse/rs/non-experimental-qc 
Mark query cache as non-experimental
 2023-05-06 19:49:23 +03:00
Alexey Milovidov
6b6504e5bd
Merge pull request #49582 from Merle-Zhang/patch-1 
Fix missing backticks for inline code in architecture.md
 2023-05-06 18:10:28 +03:00
Robert Schulze
883e0abea1
Query Cache: Safeguard against empty chunks 
Reading from the query cache is implemented using processor
"SourceFromChunks" which inherits from ISource. The latter has logic
which finishes processing (= calls .finish() on the output port +
returns Status::Finished) when the derived class returns an empty chunk.
If this empty chunk is not the last chunk, i.e. if it is followed by
non-empty chunks, the query result will be incorrect. This situation
should theoretically never occur in practice but who knows ... To be on
the safe side, writing into the query cache now rejects empty chunks and
thereby avoids this scenario.
 2023-05-06 14:22:23 +00:00
Robert Schulze
0598bfd79e
Mark query cache as non-experimental 2023-05-06 13:58:40 +00:00