[MCOL-4557] Columnstore - Technical debts in Optimizer / Rewriter Created: 2021-02-24  Updated: 2023-12-15

Status: Open
Project: MariaDB ColumnStore
Component/s: None
Affects Version/s: None
Fix Version/s: 23.10

Type: Epic Priority: Major
Reporter: Gregory Dorman (Inactive) Assignee: Roman
Resolution: Unresolved Votes: 0
Labels: None

Issue Links:
PartOf
includes MCOL-4935 A prototype planner/optimizer using t... Open
Epic Name: Columnstore - Technical debts in Optimizer / Rewriter

 Description   

There is a number of very banal query rewrite optimizations that we are not doing, paying an ugly performance price. Main examples are things like
failure to flatten queries e.g. select count(c) from (select * from tbl). This epic is designed to hold all tickets related to it.
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