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Improve scheduling of independent ctes in CTE Materialization #21639

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jaystarshot opened this issue Jan 5, 2024 · 0 comments · Fixed by #22205
Closed

Improve scheduling of independent ctes in CTE Materialization #21639

jaystarshot opened this issue Jan 5, 2024 · 0 comments · Fixed by #22205
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optimizer performance-improvement

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@jaystarshot
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jaystarshot commented Jan 5, 2024 •
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Currently when multiple ctes are materialized, they will be executed one by one. This is necessary for dependent CTEs but independent ctes can be scheduled for execution parallelly.
This will improve end to end latency

Relavant code link - here

Enhance #19744
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optimizer performance-improvement
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Presto Optimizer
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Improve cte scheduling jaystarshot/presto
Improve Independent cte scheduling jaystarshot/presto
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@tdcmeehan @jaystarshot