Igr Mineev
842c72bb6d
Merge branch 'master' into feature_multiple_disks
2019-06-09 15:38:54 +03:00
Igr Mineev
0eba56c4a7
Added move command.
2019-06-07 22:16:42 +03:00
Gleb Novikov
e7293486bd
Added ALTER TABLE support to constraints (ADD CONSTRAINT, DROP CONSTRAINT)
2019-06-02 17:41:12 +03:00
Gleb Novikov
337897c4b8
Merge branch 'master' into table-constraints
2019-05-26 12:36:02 +03:00
Igor Mineev
15ee6207ab
Chg 'Schema' to 'StoragePolicy'. Add system.disks. Add system.storage_politics. Add disk to system.parts. Add policy to system.tables.
2019-05-24 22:03:07 +03:00
Igor Mineev
4f61c9d30f
Const Schema fix
2019-05-22 22:20:10 +03:00
Alexander Kuzmenkov
43655a8db7
Add system.detached_parts table.
...
https://github.com/yandex/ClickHouse/issues/5164
2019-05-21 15:06:36 +03:00
Anastasiya Rodigina
6132b57beb
Fix style issues
2019-05-18 16:22:49 +03:00
anrodigina
d7ee2cb907
Merge branch 'master' into clickhouse-4013
2019-05-18 15:34:23 +03:00
Gleb Novikov
ce93896608
Added constraints description to MergeTree and related storages
2019-05-18 11:05:52 +03:00
Igor Mineev
6596c3f6e0
DataPartsExchange new protocol with data size. StorageReplicatedMergeTree::fetchPartition multipath fix. Choosing on mutate any disk to write mutation file.
2019-05-12 17:57:23 +03:00
Igor Mineev
b4b000bf84
Merge branch 'master' into feature_multiple_disks
2019-05-11 21:50:29 +03:00
ivan-kush
ab6558b8b4
add spaces amp
2019-05-10 17:34:02 +03:00
Ivan Kush
2a356791ab
Merge branch 'master' into feat/parallel-alter-modify
2019-05-07 23:53:14 +03:00
alexey-milovidov
63b3d7dbdb
Update MergeTreeData.h
2019-05-06 01:13:07 +03:00
alexey-milovidov
c04c614bc0
Merge branch 'master' into clickhouse-4013
2019-05-05 23:22:45 +03:00
Alexey Milovidov
b2443f6aa6
Removed huge chunk of bad code
2019-05-04 06:45:58 +03:00
Alexey Milovidov
24dc2c858a
Removed huge chunk of bad code
2019-05-03 21:07:59 +03:00
Alexey Milovidov
a6ca9f266f
Removed huge chunk of bad code
2019-05-03 05:00:57 +03:00
Alexey Milovidov
41a32d8693
Removed bad code
2019-05-03 03:27:11 +03:00
ivan-kush
9ce742e040
Merge remote-tracking branch 'upstream/master' into feat/parallel-alter-modify
2019-05-03 00:25:56 +03:00
Alexey Milovidov
6a271adad3
Added max_parts_in_total threshold to MergeTree tables
2019-05-02 17:48:54 +03:00
ivan-kush
3ecb66d965
debug stress address
2019-05-02 16:42:09 +03:00
ivan-kush
4a3a1fc6d9
return transactions cleaning
2019-05-01 15:43:43 +03:00
Ivan Kushnarenko
e38f6e08d8
debug tsan refactor trash
2019-05-01 13:26:49 +03:00
Igor Mineev
8edcae5530
Merge remote-tracking branch 'upstream/master' into feature_multiple_disks
2019-04-24 15:35:08 +03:00
Igor Mineev
79abe85328
New data path: disk_path + db_name + table_name. Removed default path from MergeTree Constructor
2019-04-21 21:38:44 +03:00
Anastasiya Rodigina
0c1735f1b1
ReverseBlockInputStream, optimization of group by, tests
2019-04-18 00:20:51 +03:00
alesapin
faeb95cfd7
Merge branch 'master' into adaptive_index_granularity
2019-04-15 19:36:36 +03:00
Anton Popov
7f93f9ad2f
TTL for columns and tables ( #4212 )
...
Add TTL for columns and tables.
2019-04-15 12:30:45 +03:00
Igor Mineev
563ab2a5ec
Merge remote-tracking branch 'upstream/master' into feature_multiple_disks
2019-04-05 23:07:24 +03:00
Igor Mineev
3a38b16da1
Add rename MergeTreeData function. Add shared_ptr to disks in Volumes.
2019-04-05 22:45:59 +03:00
Igor Mineev
968b7286e2
Stylefixes.
2019-04-05 20:37:27 +03:00
Igor Mineev
0b1a33c722
Format file moved to default. Add default Storage configuration
2019-04-05 15:30:26 +03:00
Igor Mineev
7824aa528f
Add Schemes to config. Parse scheme as default on MergeTreeData init
2019-04-04 20:19:11 +03:00
Igor Mineev
341e3f1c5b
Add space reservation for each new MargeTreeDataPart.
2019-04-03 15:52:09 +03:00
Igor Mineev
8047d16a96
Add Path chooser. Add DiskMonitort multiple disks support
2019-04-01 21:41:19 +03:00
alesapin
7b67200258
Merge remote-tracking branch 'origin' into adaptive_index_granularity
2019-04-01 11:54:19 +03:00
Alexey Milovidov
8d3ef5df19
Fixed data race in clearOldTemporaryDirectories
2019-03-29 12:28:16 +03:00
Alexey Milovidov
34c0682353
Removed useless method
2019-03-29 11:37:05 +03:00
Alexey Milovidov
350a0fe129
Miscellaneous
2019-03-28 22:58:41 +03:00
alesapin
5528edea93
Fix build warnings
2019-03-27 19:23:38 +03:00
alesapin
aba51a11ba
Large refactoring (only compilable)
2019-03-25 16:55:24 +03:00
alesapin
673a72eac6
Merge remote-tracking branch 'origin' into adaptive_index_granularity
2019-03-25 11:41:38 +03:00
Alexey Milovidov
5a7237cc13
Miscellaneous
2019-03-23 04:27:08 +03:00
alesapin
ce03636f05
Merge master
2019-03-18 15:02:33 +03:00
Nikita Vasilev
5279c7ff81
setting
2019-02-12 20:54:52 +03:00
Nikita Vasilev
258367c1dd
ASTs
2019-02-06 10:51:35 +03:00
Nikita Vasilev
69daa33462
removed unused data
2019-01-30 13:58:10 +03:00
Nikita Vasilev
160c8c0807
fixed bug with duplicate column
2019-01-30 13:18:59 +03:00
Nikita Vasilev
f0a0dbbf5a
fixed bug with replMT indices storing in zk
2019-01-21 17:47:47 +03:00
Nikita Vasilev
c32d1983a0
go to indicesDescr
2019-01-21 12:47:35 +03:00
Nikita Vasilev
977b1e20d0
moved indices
2019-01-20 23:03:17 +03:00
Nikita Vasilev
3f5447f471
go to IndicesDescr
2019-01-20 21:43:49 +03:00
Nikita Vasilev
4a19523698
Merge remote-tracking branch 'upstream/master' into nikvas0/index
2019-01-20 10:14:06 +03:00
Nikita Vasilev
0e6f5b4356
fix
2019-01-17 21:22:45 +03:00
Nikita Vasilev
c4a725a496
indices
2019-01-17 15:11:36 +03:00
Nikita Vasilev
2de2b6f32e
fixed alter
2019-01-16 19:53:38 +03:00
Alexey Zatelepin
0f8e5f8522
Merge branch 'master' into zk-columns-compact-storage
...
Conflicts:
dbms/src/Storages/StorageReplicatedMergeTree.cpp
2019-01-16 17:45:16 +03:00
Nikita Vasilev
8c35ccdd1d
fix alters
2019-01-16 15:29:26 +03:00
Nikita Vasilev
d310d1a5ec
fixed setSkipIndexes
2019-01-10 19:51:49 +03:00
Nikita Vasilev
701627ec60
fixed includes
2019-01-10 16:50:41 +03:00
Nikita Vasilev
d1e2ab85e3
asts -> exprlist
2019-01-08 14:04:25 +03:00
Nikita Vasilev
e95376e550
Merge branch 'master' into nikvas0/index
2019-01-06 16:21:00 +03:00
Nikita Vasilev
82cc39d441
added setSkipIndexes
2019-01-05 15:35:13 +03:00
Alexey Milovidov
1d4701b0bc
Added some warnings from clang's -Weverything
2019-01-04 15:10:00 +03:00
Alexey Milovidov
e33e5150b7
Miscellaneous [#CLICKHOUSE-2]
2019-01-02 09:44:36 +03:00
Alexey Zatelepin
9bd09b44ed
introduce ReplicatedMergeTreePartHeader [#CLICKHOUSE-4024]
...
Conflicts:
dbms/src/Common/ErrorCodes.cpp
2018-12-29 17:11:16 +03:00
Nikita Vasilev
c89df916ab
ptrs
2018-12-26 20:34:44 +03:00
Nikita Vasilev
04a8ea85af
added index interface and factory
2018-12-26 15:19:24 +03:00
Alexey Milovidov
4c0b95ac02
Less dependencies [#CLICKHOUSE-2]
2018-12-26 02:11:36 +03:00
Alexey Zatelepin
b7afe46dfd
remove ALTER MODIFY PRIMARY KEY command [#CLICKHOUSE-4214]
2018-12-20 21:57:20 +03:00
Emmanuel Donin de Rosière
982cd749be
Better management of DateTime partitionning #3786
...
Adding min_time and max_date in system.parts table
2018-12-10 11:20:19 +01:00
alesapin
bf338b957f
Merge master
2018-12-03 12:10:06 +03:00
alesapin
497a09c41b
Return to adaptive granularity
2018-11-29 16:12:20 +03:00
Alexey Zatelepin
e085bc9816
adapt code of #3609 [#CLICKHOUSE-3859]
2018-11-27 20:07:10 +03:00
Alexey Zatelepin
d3d9242462
Merge branch 'master' into alter-order-by
...
Conflicts:
dbms/src/Parsers/ASTAlterQuery.h
dbms/src/Parsers/ParserAlterQuery.cpp
dbms/src/Storages/AlterCommands.cpp
dbms/src/Storages/AlterCommands.h
2018-11-26 16:01:48 +03:00
Alexey Milovidov
dbbacf4f87
Added more style checks [#CLICKHOUSE-3]
2018-11-23 21:52:00 +03:00
Ivan Lezhankin
1e070a7c51
Move FREEZE_ALL command source code inside |PartitionCommand|
2018-11-20 20:13:59 +03:00
alesapin
6123993ec0
Load granularity to memroy
2018-11-15 17:06:54 +03:00
Alexey Zatelepin
b071547b2d
add checks for ALTER MODIFY ORDER BY [#CLICKHOUSE-3859]
2018-11-14 20:12:32 +03:00
alesapin
b2b29815dd
Change fixed index granularity to adaptive
2018-11-14 10:49:20 +03:00
Alexey Zatelepin
29b34365e6
Merge branch 'master' into alter-order-by
...
Conflicts:
dbms/src/Interpreters/ExpressionAnalyzer.cpp
dbms/src/Storages/MergeTree/MergeTreeData.cpp
dbms/src/Storages/MergeTree/MergeTreeDataSelectExecutor.cpp
2018-11-13 16:27:19 +03:00
Alexey Zatelepin
2cc0aae82c
rearrange AST members in MergeTreeData [#CLICKHOUSE-3859]
2018-11-13 16:15:17 +03:00
Alexey Zatelepin
7167bfd7b3
fix prewhere with FINAL for VersionedCollapsingMergeTree [#CLICKHOUSE-3859]
2018-11-13 16:15:12 +03:00
Alexey Zatelepin
8b85822192
store original key ASTs, and not extracted ASTExpressionLists [#CLICKHOUSE-3859]
2018-11-13 16:14:44 +03:00
Alexey Zatelepin
0c0c4fd28d
add sorting_and_primary_keys_independent [#CLICKHOUSE-3859]
2018-11-13 16:13:19 +03:00
Alexey Zatelepin
c4bf38ef07
comments [#CLICKHOUSE-3859]
2018-11-13 16:13:06 +03:00
Alexey Zatelepin
f4c26e78d2
renames [#CLICKHOUSE-3859]
2018-11-13 16:13:01 +03:00
Alexey Zatelepin
0fa86162d9
separate sorting key and primary key, allow setting primary key separately [#CLICKHOUSE-3859]
2018-11-13 16:12:55 +03:00
Alexey Zatelepin
9a92c0a55c
sort key is distinct from primary key [#CLICKHOUSE-3859]
2018-11-13 16:12:49 +03:00
alesapin
6f5fef5344
CLICKHOUSE-3971: Write data with adaptive index granularity
2018-11-12 19:14:37 +03:00
Ivan Lezhankin
5d3da110a8
Refactor |freezePartition()| and |freezeAll()|
2018-11-12 15:26:15 +03:00
Ivan Lezhankin
935615a647
Reimplement FREEZE command.
2018-11-12 15:26:14 +03:00
Ivan Lezhankin
03e6a29eb2
Implement 'ALTER … FREEZE' command.
...
Need some tests!
2018-11-12 15:26:14 +03:00
Alexey Milovidov
99a64d3b92
Presumably better #2278
2018-10-17 06:13:00 +03:00
Alexey Zatelepin
c2c12f22f7
try to immediately delete the part after checksums mismatch [#CLICKHOUSE-2837]
2018-09-21 19:07:21 +03:00
Alexey Zatelepin
6da58aedd8
don't fetch mutated part if we have local part with the same checksums [#CLICKHOUSE-3937]
2018-09-11 19:41:01 +03:00
VadimPE
10ab9587a2
CLICKHOUSE-3839 add virtual column _partition_id
2018-09-10 12:53:13 +03:00
Alexey Zatelepin
a0730d7696
old mutations cleaner for non-replicated MergeTree engines [#CLICKHOUSE-3828]
2018-08-03 22:21:44 +03:00
Alexey Milovidov
b5b48d59fa
Compatibility with obsolete version of Poco for alternative build variants #2759
2018-07-30 23:21:45 +03:00
Alexey Milovidov
e86f73e465
Fixed half of bad code #2571
2018-07-04 20:28:52 +03:00
Alexey Milovidov
f5adbceed2
Non significant changes according to clang's -Weverything, part 3 [#CLICKHOUSE-2]
2018-06-03 23:39:06 +03:00
Alexey Zatelepin
f6c72f8e56
Merge branch 'master' into replicated-mergetree-mutations
...
Conflicts:
dbms/src/Common/ActionBlocker.h
dbms/src/Storages/MergeTree/ActiveDataPartSet.cpp
dbms/src/Storages/MergeTree/ActiveDataPartSet.h
dbms/src/Storages/MergeTree/MergeTreeData.h
dbms/src/Storages/MergeTree/MergeTreeDataPart.cpp
dbms/src/Storages/MergeTree/ReplicatedMergeTreeAlterThread.cpp
dbms/src/Storages/MergeTree/ReplicatedMergeTreeLogEntry.cpp
dbms/src/Storages/MergeTree/ReplicatedMergeTreeLogEntry.h
dbms/src/Storages/MergeTree/ReplicatedMergeTreeQueue.cpp
dbms/src/Storages/MergeTree/ReplicatedMergeTreeQueue.h
dbms/src/Storages/MergeTree/ReplicatedMergeTreeRestartingThread.cpp
dbms/src/Storages/StorageMergeTree.cpp
dbms/src/Storages/StorageReplicatedMergeTree.cpp
dbms/src/Storages/StorageReplicatedMergeTree.h
2018-05-28 18:37:30 +03:00
Alexey Zatelepin
1147e052e8
select and write part mutations to queue [#CLICKHOUSE-3747]
2018-05-25 23:13:00 +03:00
Alexey Zatelepin
9a32c76e76
parts versioning [#CLICKHOUSE-3687]
2018-05-25 23:04:07 +03:00
Vitaliy Lyudvichenko
87ad1df259
More atomic insert to MATERIALIZED VIEW. [#CLICKHOUSE-3743]
2018-05-23 19:18:04 +03:00
Vitaliy Lyudvichenko
c888903488
Add query ALTER TABLE t1 [REPLACE|ATTACH] PARTITION FROM t2
...
* Add ATTACH PARTITION FROM table for MergeTree. [#CLICKHOUSE-3546]
* Implemented replicated case on non-leader replica. [#CLICKHOUSE-3546]
* Disable merges in the dropping range. [#CLICKHOUSE-3546]
* DROP PARTITION is atomic and simpler now. [#CLICKHOUSE-3546]
* Implemented more SYSTEM queries. [#CLICKHOUSE-2931] [#CLICKHOUSE-3546]
SYSTEM queries:
RESTART REPLICAS
SYNC REPLICA db.name
STOP MERGES [db.name]
START MERGES [db.name]
STOP FETCHES [db.name]
START FETCHES [db.name]
STOP REPLICATED SENDS [db.name]
START REPLICATED SENDS [db.name]
STOP REPLICATION QUEUES [db.name]
START REPLICATION QUEUES [db.name]
* Fixed a bunch of bugs in REPLACE PARTITION. [#CLICKHOUSE-3546]
* Add tests for REPLACE PARTITION and SYSTEM. [#CLICKHOUSE-3546]
* Add system.part_log logging. [#CLICKHOUSE-3546]
* Fixed long wait in SYNC REPLICA. [#CLICKHOUSE-3546]
* Add requested changes. [#CLICKHOUSE-3546]
Fixed clickhouse-client bad return code.
* Add requested chenges. [#CLICKHOUSE-3546]
* Add requested chenges. [#CLICKHOUSE-3546]
2018-05-21 16:49:54 +03:00
Alexey Milovidov
d71b3a95ef
Renamed PK to Key where it's appropriate #2246
2018-04-20 03:20:50 +03:00
Alexey Milovidov
c0978919e3
Fixed error with partition key IN, part 1 #2246
2018-04-19 23:34:02 +03:00
Nikolai Kochetov
b96039bafe
added check for partition column in mayBenefitFromIndexForIn #2170
2018-04-05 00:03:16 +03:00
Alex Zatelepin
c5b04f7f17
Add info about total uncompressed part size to system tables ( #2052 )
...
* column size calculating routines now take into account multiple streams [#CLICKHOUSE-2831]
* rename for clarity
* use more appropriate method for calculating table size
* add info about total uncompressed part size to system.parts and system.parts_columns [#CLICKHOUSE-2831]
* rename columns for clarity [#CLICKHOUSE-2831]
* count shared substreams only once [#CLICKHOUSE-2831]
2018-03-26 17:18:04 +03:00
Alexey Milovidov
02c67e2b13
Fixed error [#CLICKHOUSE-2]
2018-03-16 09:51:37 +03:00
Alexey Zatelepin
5906c9a988
rename for clarity
2018-03-13 18:00:28 +03:00
Alexey Zatelepin
fdffbe53ac
encapsulate ColumnsDeclaration [#CLICKHOUSE-3241]
2018-03-13 17:41:25 +03:00
Alexey Zatelepin
71642b0880
use ColumnsDescription everywhere [#CLICKHOUSE-3241]
2018-03-12 22:07:48 +03:00
Alexey Milovidov
3f8ef38b41
Fixed wording #245
2018-03-10 02:23:15 +03:00
alexey-milovidov
82fa3883f8
Merge pull request #1930 from yandex/nonblocking-precommitted
...
Allow PreCommitted parts to contain each other
2018-02-22 23:35:16 +03:00
Alexey Zatelepin
610f70fbeb
forbid non-deterministic functions in primary and partition keys [#CLICKHOUSE-3455]
2018-02-21 20:54:16 +03:00
Alexey Zatelepin
53b5c5f54c
add check for intersecting parts when adding new parts
2018-02-20 16:58:41 +03:00
Alexey Zatelepin
5bc6bd55b1
allow PreCommitted parts to contain each other, clean up code
2018-02-20 16:33:28 +03:00
Alexey Milovidov
d0bfa15525
Removed UnsortedMergeTree, part 2 [#CLICKHOUSE-2]
2018-02-19 20:31:49 +03:00
Nikolai Kochetov
90d67d4e8a
added test for moving partition from collapsing to versioned collapsing merge tree [#CLICKHOUSE-3479]
2018-02-13 00:13:50 +03:00
Nikolai Kochetov
64b3a8baa7
added secondary sort expression [#CLICKHOUSE-3479]
2018-02-13 00:13:50 +03:00
Nikolai Kochetov
32bdf7c38c
renamed MultiversionMergeTree to VersionedCollapsingMergeTree [#CLICKHOUSE-3479]
2018-02-13 00:13:50 +03:00
Nikolai Kochetov
66b94d481a
added MultiversionMergeTree [#CLICKHOUSE-3479]
2018-02-13 00:13:50 +03:00
Vitaliy Lyudvichenko
e2fb6d8c80
Merge remote-tracking branch 'origin/master' into CLICKHOUSE-3346
2018-01-25 22:00:08 +03:00
Vitaliy Lyudvichenko
26e58271e9
Removed repeatable columns field from Storages declarations. [#CLICKHOUSE-2]
2018-01-25 17:42:39 +03:00
Vlad Arkhipov
6738d6a995
Add comments. Improve method names.
2018-01-23 11:18:12 +03:00
Vlad Arkhipov
be96cf5133
Replace subqueries and table expressions on the right side of the IN operator with their results in order to make MergeTree storage engines evaluate the corresponding conditions by using the index.
2018-01-21 11:22:52 +03:00
Alexey Milovidov
fcdd5de47d
Revert "Removed questionable code (2) [#CLICKHOUSE-2]."
...
This reverts commit fcabe8b888
.
2017-12-28 07:39:19 +03:00
Alexey Milovidov
c89041ce63
Removed questionable code (2) [#CLICKHOUSE-2].
2017-12-26 01:51:04 +03:00
Alexey Milovidov
ec71908b00
Revert "Removed questionable code (2) [#CLICKHOUSE-2]."
...
This reverts commit fcabe8b888
.
2017-12-26 00:57:29 +03:00
Alexey Milovidov
fcabe8b888
Removed questionable code (2) [#CLICKHOUSE-2].
2017-12-26 00:32:33 +03:00
Alexey Milovidov
a85b2e5a95
Removed questionable code [#CLICKHOUSE-2].
2017-12-26 00:10:46 +03:00
Alexey Zatelepin
c3348e27a4
shorter [#CLICKHOUSE-2]
2017-12-25 20:31:14 +03:00
Alexey Zatelepin
d35baafde8
check PreCommitted parts when executing log entries and in PartChecker [#CLICKHOUSE-3508]
2017-12-20 20:04:14 +03:00
Alexey Zatelepin
2340e55d0e
revert to old behaviour of getPartIfExists() [#CLICKHOUSE-3508]
2017-12-20 20:04:14 +03:00
Alexey Milovidov
1aa99092c3
Unification of serde of data types: development [#CLICKHOUSE-2838].
2017-12-03 05:15:35 +03:00
Alexey Milovidov
54e601019c
Better [#CLICKHOUSE-2].
2017-12-02 00:40:58 +03:00
Vitaliy Lyudvichenko
b738d1baed
Add multi index for data_parts storage. And fixed bugs. [#CLICKHOUSE-3452]
...
Fixed handling of obsolete parts.
Fixed conflict resolution between simultaneous PreCommitted covering parts.
Fixed memory leak caused by ordinary MergeTree parts stucked in Deleting state.
Added hidden _state column into system.parts.
2017-11-29 14:25:11 +03:00
Alexey Milovidov
729b114c15
Removed unsupported functionality [#CLICKHOUSE-2].
2017-11-18 05:34:00 +03:00
Vitaliy Lyudvichenko
9cf14d2c61
Remove obsolete code. [#CLICKHOUSE-2]
2017-11-02 17:35:12 +03:00
Vitaliy Lyudvichenko
602560cb2e
Update system.parts table. [#CLICKHOUSE-3178]
2017-10-26 17:20:21 +03:00
Vitaliy Lyudvichenko
b5c7eaa80e
Force data parts cleanup before repeat fetch. [#CLICKHOUSE-3178]
2017-10-26 17:16:06 +03:00
Vitaliy Lyudvichenko
e2a12d1088
Introduced logic for MergeTree parts states. [#CLICKHOUSE-3178]
2017-10-26 17:16:06 +03:00
Vitaliy Lyudvichenko
5787e8b257
Add state for MergeTree parts. [#CLICKHOUSE-3178]
...
And Removed obsolete code.
2017-10-26 17:16:06 +03:00
Alexey Zatelepin
b6b5d1cf25
store rows count for part on disk to allow tables without fixed size columns [#CLICKHOUSE-3000]
2017-10-24 17:11:53 +03:00
Alexey Zatelepin
a7c85e0c89
save index_granularity to ATTACH query if it wasn't set explicitly [#CLICKHOUSE-3000]
2017-10-20 21:28:44 +03:00
Alexey Zatelepin
f1a8b9bfa1
add comments [#CLICKHOUSE-3000]
2017-09-26 20:40:02 +03:00