5 Commits

Author	SHA1	Message	Date
Amos Bird	a113acc40c	Fix empty key	2021-05-14 22:54:14 +08:00
Amos Bird	8de016d33a	Fix empty key projection query analysis	2021-05-14 22:26:26 +08:00
Amos Bird	718c284437	Fix more tests	2021-05-11 18:12:28 +08:00
Amos Bird	f7f949c1f9	Fix aggregation keys order	2021-05-11 18:12:27 +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