Amos Bird
264cff6415
Projections
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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
Ivan
495c6e03aa
Replace all Context references with std::weak_ptr ( #22297 )
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* Replace all Context references with std::weak_ptr
* Fix shared context captured by value
* Fix build
* Fix Context with named sessions
* Fix copy context
* Fix gcc build
* Merge with master and fix build
* Fix gcc-9 build
2021-04-11 02:33:54 +03:00
Alexey Milovidov
c38dca155c
Fix clang-tidy
2021-01-10 05:51:54 +03:00
alesapin
cbba73672e
Merge branch 'master' into try_rewrite_writer
2020-12-11 11:09:47 +03:00
alesapin
0704b478ee
Less constuctors
2020-12-10 12:22:43 +03:00
alesapin
2787b615b0
Make interface as simple as possible
2020-12-10 11:57:52 +03:00
alesapin
7979b3655c
Better formating
2020-12-09 21:22:07 +03:00
alesapin
3b88c077ed
Mechanical refactoring
2020-12-09 21:19:49 +03:00
alesapin
af73db93e6
Mechanical refactoring
2020-12-09 21:10:09 +03:00
feng lv
d7b30f74d1
add min-max_compress_block_size to mergetree settings
2020-12-07 12:47:51 +00:00
Anton Popov
4df5c72878
Merge remote-tracking branch 'upstream/master' into HEAD
2020-08-24 12:57:27 +03:00
alesapin
e9c47dc89c
Merge branch 'master' into CurtizJ-polymorphic-parts
2020-06-26 14:27:19 +03:00
Anton Popov
f8f67a788e
allow to turn on fsync on inserts and merges
2020-06-25 19:55:45 +03:00
alesapin
1afdebeebd
Primary key in storage metadata
2020-06-17 15:39:20 +03:00
alesapin
1ddeb3d149
Buildable getSampleBlock in StorageInMemoryMetadata
2020-06-16 18:51:29 +03:00
Anton Popov
1ce09e1faa
Merge remote-tracking branch 'upstream/master' into polymorphic-parts
2020-06-03 16:27:54 +03:00
alesapin
52ca6b2051
I'm able to build it
2020-05-28 15:37:05 +03:00
Azat Khuzhin
d93b9a57f6
Forward declaration for Context as much as possible.
...
Now after changing Context.h 488 modules will be recompiled instead of 582.
2020-05-21 01:53:18 +03:00
Anton Popov
9a2855fae7
in-memory parts: preparation
2020-04-17 15:15:20 +03:00
Anton Popov
f7b7b5eb74
remove unused flags
2020-04-17 14:59:10 +03:00
Ivan Lezhankin
06446b4f08
dbms/ → src/
2020-04-03 18:14:31 +03:00
