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2758db5341
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275 Commits

Author SHA1 Message Date
Anton Popov
2758db5341 add more comments 2022-03-01 19:32:55 +03:00
Anton Popov
a661eaf39f better performance of getting storage snapshot 2022-02-16 02:17:22 +03:00
Anton Popov
dcd7312d75 cache common type on objects in MergeTree 2022-02-09 23:47:53 +03:00
Anton Popov
18940b8637 Merge remote-tracking branch 'upstream/master' into HEAD 2022-02-09 23:38:38 +03:00
feng lv
6325d4d9b0 continue of #34317 
fix

fix
 2022-02-06 08:59:17 +00:00
Anton Popov
78b9f15abb Merge remote-tracking branch 'upstream/master' into HEAD 2022-01-30 03:24:37 +03:00
Anton Popov
e8ce091e68 Merge remote-tracking branch 'upstream/master' into HEAD 2022-01-21 20:11:18 +03:00
Kruglov Pavel
2295a07066
Merge pull request #33534 from azat/fwd-decl 
RFC: Split headers, move SystemLog into module, more forward declarations
 2022-01-18 17:22:49 +03:00
Azat Khuzhin
c341b3b237 Add current database to table names in JOIN section for distributed queries 
This should fix JOIN w/o explicit database.

v2: rewrite only JOIN section, since there is old behavior that relies
on default_database for IN section, see [1]:
- 01487_distributed_in_not_default_db
- 01152_cross_replication

  [1]: https://s3.amazonaws.com/clickhouse-test-reports/33611/d0ea3c76fa51131171b1825939680867eb1c04da/fast_test__actions_.html

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-01-14 11:23:38 +03:00
Azat Khuzhin
0a9b1ee803 Remove RestoreQualifiedNamesMatcher::Data::rename (always true) 
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
 2022-01-14 11:18:52 +03:00
Azat Khuzhin
aee034a597 Use explicit template instantiation for SystemLog 
- Move some code into module part to avoid dependency from IStorage in SystemLog
- Remove extra headers from SystemLog.h
- Rewrite some code that was relying on headers that was included by SystemLog.h

v2: rebase
v3: squash move into module part with explicit template instantiation
    (to make each commit self compilable after rebase)
 2022-01-10 22:01:41 +03:00
Azat Khuzhin
1637c41d42 Remove leftovers of old _shard_num via identifier implementation 2022-01-10 21:21:24 +03:00
avogar
8112a71233 Implement schema inference for most input formats 2021-12-29 12:18:56 +03:00
Anton Popov
99ebabd822 Merge remote-tracking branch 'upstream/master' into HEAD 2021-12-17 19:02:29 +03:00
Alexey Milovidov
5c90ed2ed9 Unambiguous formatting of distributed queries 2021-12-10 00:55:14 +03:00
Nikita Mikhaylov
dbf5091016
Parallel reading from replicas (#29279) 2021-12-09 13:39:28 +03:00
Anton Popov
6f4d9a53b2 Merge remote-tracking branch 'origin/sparse-serialization' into HEAD 2021-12-01 15:54:33 +03:00
Raúl Marín
7781fc12ed Reduce dependencies on ASTSelectWithUnionQuery.h 
521 -> 77 files requiring changes
 2021-11-26 19:27:16 +01:00
Raúl Marín
b2cfa70541 Reduce dependencies on ASTFunction.h 
481 -> 230
 2021-11-26 18:21:54 +01:00
Anton Popov
a20922b2d3 Merge remote-tracking branch 'origin/sparse-serialization' into HEAD 2021-11-09 15:36:25 +03:00
feng lv
6f12348282 enable modify table comment of some table 2021-10-29 12:31:18 +00:00
Alexander Tokmakov
2e7e195e77 change alter_lock to std::timed_mutex 2021-10-26 13:37:00 +03:00
Nikolai Kochetov
fd14faeae2 Remove DataStreams folder. 2021-10-15 23:18:20 +03:00
Nikolai Kochetov
2957971ee3 Remove some last streams. 2021-10-13 21:22:02 +03:00
Vitaly Baranov
1636ee24bb Fix using materialized column as sharding key. 2021-10-04 10:56:42 +03:00
Nikolai Kochetov
341553febd Fix build. 2021-09-16 20:40:42 +03:00
Nikolai Kochetov
b997214620 Rename QueryPipeline to QueryPipelineBuilder. 2021-09-14 20:48:18 +03:00
Nikolai Kochetov
0e267c50b4 Merge branch 'master' into rewrite-pushing-to-views 2021-09-14 16:13:54 +03:00
alexey-milovidov
ea13a8b562
Merge pull request #28659 from myrrc/improvement/tostring_to_magic_enum 
Improving CH type system with concepts
 2021-09-12 15:26:29 +03:00
Nikolai Kochetov
f569a3e3f7 Merge branch 'master' into rewrite-pushing-to-views 2021-09-09 20:30:23 +03:00
Anton Popov
4c388e3d84 Merge remote-tracking branch 'origin/sparse-serialization' into HEAD 2021-09-09 14:10:16 +03:00
Nikolai Kochetov
999a4fe831 Fix other tests. 2021-09-08 21:29:38 +03:00
ZhiYong Wang
978dd19fa2 Fix coredump in creating distributed table 2021-09-07 19:05:26 +08:00
Mike Kot
8e9aacadd1 Initial: replacing hardcoded toString for enums with magic_enum 2021-09-06 16:24:03 +02:00
Alexander Tokmakov
42378b5913 fix 2021-08-20 17:05:53 +03:00
Anton Popov
61239343e3 Merge remote-tracking branch 'origin/sparse-serialization' into HEAD 2021-08-20 16:33:30 +03:00
Alexander Tokmakov
8c6dd18917 check cluster name before creating Distributed 2021-08-20 14:55:04 +03:00
Azat Khuzhin
702d9955c0 Fix distributed queries with zero shards and aggregation 2021-08-08 19:22:49 +03:00
Azat Khuzhin
3be3c503aa Fix some comments 2021-08-08 09:58:07 +03:00
alexey-milovidov
c5207fc237
Merge pull request #26466 from azat/optimize-dist-select 
Rework SELECT from Distributed optimizations
 2021-08-08 03:59:32 +03:00
mergify[bot]
dc57254982
Merge branch 'master' into improve_create_or_replace 2021-08-03 11:39:07 +00:00
Azat Khuzhin
97851bde08 Fix Distributed over Distributed for WithMergeableStateAfterAggregation* stages 
In case if one Distributed has multiple shards, and underlying
Distributed has only one, there can be the case when the query will be
tried to process from Complete to WithMergeableStateAfterAggregation,
which is obviously wrong.
 2021-08-03 10:10:08 +03:00
Anton Popov
e36736b50c Merge remote-tracking branch 'origin/sparse-serialization' into HEAD 2021-08-02 22:52:02 +03:00
Azat Khuzhin
ff12f5102a Avoid running LIMIT BY/DISTINCT step on the initiator for optimize_distributed_group_by_sharding_key 
Before the following queries was running LimitBy/Distinct step on the
initator:

  select distinct sharding_key from dist order by k

While this can be omitted.
 2021-08-02 21:04:30 +03:00
Azat Khuzhin
2fb95d9ee0 Rework SELECT from Distributed query stages optimization 
Before this patch it wasn't possible to optimize simple SELECT * FROM
dist ORDER BY (w/o GROUP BY and DISTINCT) to more optimal stage
(QueryProcessingStage::WithMergeableStateAfterAggregationAndLimit),
since that code was under
allow_nondeterministic_optimize_skip_unused_shards, rework it and make
it possible.

Also now distributed_push_down_limit is respected for
optimize_distributed_group_by_sharding_key.

Next step will be to enable distributed_push_down_limit by default.

v2: fix detection of aggregates
 2021-08-02 21:04:29 +03:00
Azat Khuzhin
bb6d030fb8 Optimize distributed SELECT w/o GROUP BY 2021-08-02 21:04:29 +03:00
Nikolai Kochetov
61d8f880cd Rename some files. 2021-07-26 19:48:25 +03:00
mergify[bot]
044be267d6
Merge branch 'master' into improve_create_or_replace 2021-07-26 08:38:48 +00:00
Anton Popov
90b6a591e5 fix reading from distributed 2021-07-24 03:55:50 +03:00
Anton Popov
f867995b94 remove excessive creation of storage snapshot 2021-07-23 19:47:43 +03:00