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
Alexey Milovidov
e905883c75
More fixes for PVS-Studio
2021-05-08 19:12:31 +03:00
Ivan
495c6e03aa
Replace all Context references with std::weak_ptr ( #22297 )
...
* 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
alesapin
5ffee8808a
Alter remove column properties and TTLs ( #14742 )
2020-09-20 16:27:33 +03:00
alesapin
2c4047b280
Revert accident changes
2020-09-11 20:07:00 +03:00
alesapin
a5f8899874
First implementation
2020-09-11 20:04:55 +03:00
alesapin
10c7a6c45e
Add ability to specify Default codec for columns ( #14049 )
...
* Add ability to specify DefaultCompression codec which correspond to settings specified in config.xml
* Fix style
* Rename DefaultCompression to simple Default
* Fix compression codec
* Better codec description representation
* Less strange code and one method
* Fix delta
2020-08-28 20:40:45 +03:00
Amos Bird
078b14610d
ALTER MODIFY SAMPLE BY
2020-08-27 22:31:30 +08:00
Alexey Milovidov
edd89a8610
Fix half of typos
2020-08-08 03:47:03 +03:00
alesapin
be106b662e
Comment and style
2020-07-21 18:19:41 +03:00
zhang2014
9ed5c6d925
ISSUES-4006 support first for ALTER ADD|MODIFY COLUMN
2020-07-01 22:58:52 +08:00
alesapin
52ca6b2051
I'm able to build it
2020-05-28 15:37:05 +03:00
alesapin
cbcdb6219e
Slighty more verbose comment
2020-05-22 11:17:57 +03:00
Anton Popov
d62fe980ef
Merge remote-tracking branch 'upstream/master' into modify-ttl
2020-05-20 16:52:30 +03:00
alesapin
70e5553204
At least something works
2020-05-19 12:54:56 +03:00
Anton Popov
58ed04dc24
materialize TTL after its modifying
2020-05-19 04:53:01 +03:00
Alexey Milovidov
99c18c5a09
Check for suspicious codecs #4966
2020-05-04 03:11:49 +03:00
Vladimir Chebotarev
82985ff594
Allowed to alter column in non-modifying data mode when the same type is specified.
2020-04-20 14:15:06 +03:00
alesapin
1cb072d58a
Merge branch 'master' into alter_rename_column
2020-04-06 11:40:27 +03:00
Ivan Lezhankin
06446b4f08
dbms/ → src/
2020-04-03 18:14:31 +03:00
