Igor Babaev ac963142ee MDEV-26553 NOT IN subquery construct crashing 10.1 and up ...

This bug was introduced by commit be00e279c6
The commit was applied for the task MDEV-6480 that allowed to remove top
level disjuncts from WHERE conditions if the range optimizer evaluated them
as always equal to FALSE/NULL.
If such disjuncts are removed the WHERE condition may become an AND formula
and if this formula contains multiple equalities the field JOIN::item_equal
must be updated to refer to these equalities. The above mentioned commit
forgot to do this and it could cause crashes for some queries.

Approved by Oleksandr Byelkin <sanja@mariadb.com>

2021-11-26 13:02:39 -08:00

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