thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-12-16 11:22:12 +00:00
Code Issues Packages Projects Releases Wiki Activity
70,246 Commits 9,338 Branches 1,783 Tags 2.1 GiB
0cd3f25ba4
Commit Graph

24 Commits

Author SHA1 Message Date
kssenii
2a631aaf08 Final fixes 2021-05-29 00:34:44 +03:00
Amos Bird
264cff6415
Projections 
TODO (suggested by Nikolai)

1. Build query plan fro current query (inside storage::read) up to WithMergableState
2. Check, that plan is simple enough: Aggregating - Expression - Filter - ReadFromStorage (or simplier)
3. Check, that filter is the same as filter in projection, and also expression calculates the same aggregation keys as in projection
4. Return WithMergableState if projection applies

3 will be easier to do with ActionsDAG, cause it sees all functions, and dependencies are direct (but it is possible with ExpressionActions also)

Also need to figure out how prewhere works for projections, and
row_filter_policies.

wip
 2021-05-11 18:12:23 +08:00
Anton Popov
df6663dcb6 refactoring of serializations 2021-03-09 20:02:26 +03:00
Anton Popov
bc417cf54a refactoring of serializations 2021-03-09 17:46:52 +03:00
Anton Popov
25ddd78976 fix nested 2020-12-18 23:09:34 +03:00
Anton Popov
31e6956ac8 fix alters of nested 2020-12-18 15:29:57 +03:00
Anton Popov
06d5b87bc9 fix nested and subcolumns 2020-12-07 22:02:26 +03:00
Anton Popov
1f65478b49 implement nested with multiple nesting 2020-11-21 20:27:42 +03:00
Anton Popov
06dc0155e5 allow to read subhcolumns from other storages 2020-10-23 17:44:23 +03:00
Anton Popov
80cd2523ce Merge remote-tracking branch 'upstream/master' into HEAD 2020-09-30 19:34:29 +03:00
alesapin
e96a3ac5f3 DataType in enumerate streams 2020-09-18 14:37:58 +03:00
Anton Popov
cb4801e3be allow to read subcolumns of complex types 2020-09-18 02:12:43 +03:00
alesapin
2fc80189af Add default compression codec to merge tree data part 2020-08-26 18:29:46 +03:00
alesapin
1707f84a44 Less strict check and rare rename bug 2020-07-27 12:42:37 +03:00
alesapin
c66dc23a47 Fix error style 2020-07-25 23:56:29 +03:00
alesapin
eae7dc852e Fix build 2020-07-25 23:54:33 +03:00
alesapin
393a9195ca Better exception message 2020-07-25 17:45:46 +03:00
alesapin
78d357f0d2 Add a test for sticking mutations bug 2020-07-25 17:42:20 +03:00
Anton Popov
53e955c6dd several fixes 2020-06-29 23:36:18 +03:00
alesapin
dffdece350 getColumns in StorageInMemoryMetadta (only compilable) 2020-06-17 19:39:58 +03:00
alesapin
1afdebeebd Primary key in storage metadata 2020-06-17 15:39:20 +03:00
Gleb Novikov
1235c36f3e data_part instead of volume in IMergeTreeDataPartWriter (as it done in IMergeTreeReader) 2020-05-10 16:33:27 +03:00
Gleb Novikov
390b39b272 VolumePtr instead of DiskPtr in MergeTreeData* 2020-05-10 00:24:15 +03:00
Ivan Lezhankin
06446b4f08 dbms/ → src/ 2020-04-03 18:14:31 +03:00