igor@olga.mysql.com 1a0cf6db7c Fixed bug #28188: performance degradation for outer join queries to which ...

'not exists' optimization is applied.

In fact 'not exists' optimization did not work anymore after the patch
introducing the evaluate_join_record function had been applied.

Corrected the evaluate_join_record function to respect the 'not_exists'
optimization.

2007-05-01 23:34:14 -07:00

31 KiB

Raw Blame History

View Raw