7 Commits

Author	SHA1	Message	Date
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
Ivan	315ff4f0d9	ANTLR4 Grammar for ClickHouse and new parser (#11298)	2020-12-04 05:15:44 +03:00
Vladimir Chebotarev	059357d51e	ALTER UPDATE/DELETE ... IN PARTITION with partition pruning in ReplicatedMergeTree (#13403) ... Co-authored-by: Alexander Kazakov <Akazz@users.noreply.github.com>	2020-11-10 13:23:46 +03:00
Alexey Milovidov	edd89a8610	Fix half of typos	2020-08-08 03:47:03 +03:00
alesapin	daaa5cc382	Add setting allow_non_metadata_alters	2020-07-21 17:05:30 +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