5 Commits

Author	SHA1	Message	Date
Alexey Milovidov	4cfc040829	Fix parameterized queries	2023-03-11 20:16:06 +01:00
Raúl Marín	b2cfa70541	Reduce dependencies on ASTFunction.h ... 481 -> 230	2021-11-26 18:21:54 +01:00
Amos Bird	9bbc9f97b4	Implement antlr parser for projections (#24245) ... * implement projection grammer for antlr parser * Add comment	2021-06-02 18:09:55 +03:00
Amos Bird	dfa5629071	Remove projection type ast	2021-05-11 18:12:29 +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