Amos Bird
ebaf42a448
Reformat and fix some tests
2021-05-11 18:12:27 +08:00
Nikolai Kochetov
3296c9292f
Try to merge projectons faster.
2021-05-11 18:12:26 +08:00
Amos Bird
cd6414639e
add metadata_snapshot to getQueryProcessingStage
2021-05-11 18:12:26 +08:00
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
Azat Khuzhin
eefd67fce5
Disable optimize_distributed_group_by_sharding_key with window functions
2021-05-06 00:44:22 +03:00
Azat Khuzhin
79bd8d4d3f
Respect optimize_skip_unused_shards_rewrite_in with optimize_skip_unused_shards_limit
2021-04-12 10:37:28 +03:00
Nikolai Kochetov
ae73600fb0
Refactor row level security actions.
2021-02-15 22:48:06 +03:00
Denis Glazachev
45e90961f7
Store and process alias_actions in FilterInfo
2021-02-14 21:16:40 +04:00
Denis Glazachev
79592b73f8
Store filter info in prewhere info instead of multiple prewheres
...
Some cleanups
2021-02-14 02:07:13 +04:00
Denis Glazachev
4f6c880232
Pass and handle a chain of multiple prewhere infos
2021-01-25 18:31:59 +04:00
Alexander Kuzmenkov
8ee86e35d2
debug
2020-12-02 21:16:31 +03:00
Nikolai Kochetov
58c4a7b890
Some renames.
2020-11-11 19:52:27 +03:00
Nikolai Kochetov
6717c7a0af
Merge branch 'master' into actions-dag-f14
2020-11-09 14:57:48 +03:00
Nikolai Kochetov
7b61f5d641
Refactor more
2020-11-03 22:05:47 +03:00
Nikolai Kochetov
07a7c46b89
Refactor ExpressionActions [Part 3]
2020-11-03 14:28:28 +03:00
Azat Khuzhin
b838214a35
Pass non-const SelectQueryInfo (and drop mutable qualifiers)
2020-10-02 22:42:35 +03:00
Azat Khuzhin
587cde853e
Avoid skipping unused shards twice (for query processing stage and read itself)
2020-10-02 22:42:09 +03:00
Artem Zuikov
2afd123eda
Refactoring: extract TreeOptimizer from SyntaxAnalyzer ( #12645 )
2020-07-22 20:13:05 +03:00
Artem Zuikov
24059efad5
Change push down logic in VIEW ( #11513 )
2020-06-15 15:36:10 +03:00
Dmitry
4b0d32f026
Merge branch 'master' of github.com:yandex/ClickHouse into group_by_in_order_optimization
2020-05-31 00:21:02 +03:00
Nikolai Kochetov
1fa795988f
Remove some code.
2020-05-28 11:24:59 +03:00
Dmitry
bbe0245b9d
changes after review #1
2020-05-13 16:49:10 +03:00
Dmitry
e98c23a8cf
read in order enabled
2020-05-05 17:35:23 +03:00
Dmitry
25cd4ce132
Merge branch 'master' of github.com:yandex/ClickHouse into group_by_in_order_optimization
2020-04-18 12:56:34 +03:00
Ivan Lezhankin
06446b4f08
dbms/ → src/
2020-04-03 18:14:31 +03:00
