[planbuilder] Skip post-aggregate projection when there are no aliases in target scope #2333
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nicktobey
approved these changes
Feb 18, 2024
sql/memo/memo.go
Outdated
| @@ -283,6 +283,9 @@ func (m *Memo) MemoizeMergeJoin(grp, left, right *ExprGroup, lIdx, rIdx *IndexSc | |||
| } | |||
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| func (m *Memo) MemoizeProject(grp, child *ExprGroup, projections []sql.Expression) *ExprGroup { | |||
| if len(projections) == 0 { | |||
| print("") | |||
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re: dolthub/dolt#6982
This takes the last big chunk of CPU pressure off of TPC-C execution, which is mostly disk limited now: