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[roadmap-track] Cost based optimizer(CBO) #915

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BohuTANG opened this issue Jun 26, 2021 · 3 comments

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BohuTANG commented Jun 26, 2021 •

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Main issue tracking for Cost based optimizer.

Queries

Queries	Status	Release Target	Comments
count(*) with table statistics #914	DONE	v0.5
exact min/max with table statistics #997	PLANNING	v0.5

BohuTANG added the roadmap-track label

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Roadmap 2021 #746

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zhang2014 commented Jun 27, 2021

reference about cockroachdb CBO:
https://github.com/petermattis/opttoy
https://github.com/cockroachdb/cockroach/tree/master/pkg/sql/opt/norm/rules
https://www.cockroachlabs.com/blog/building-cost-based-sql-optimizer

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BohuTANG commented Jul 5, 2021

Add:
exact min/max with table statistics #997

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leiysky commented Aug 26, 2022

Already tracked in #6643

leiysky closed this as completed

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