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2 commits

Author SHA1 Message Date
Oleksandr Byelkin
f0f1f2de0e Merge branch '10.6' into 10.8 2023-05-03 11:33:57 +02:00
Sergei Petrunia
4329ec5d3b MDEV-30812: Improve output cardinality estimates for hash join 
Introduce @@optimizer_switch flag: hash_join_cardinality

When it is on, use EITS statistics to produce tighter bounds for
hash join output cardinality.

Amended by Monty.

Reviewed by: Monty <monty@mariadb.org>
 2023-04-28 16:24:08 +03:00