Igor Babaev 9f0c1c0cf6 Fixed the bug mdev-13193. ...

When an equality that can be pushed into a materialized derived
table / view is extracted from multiple equalities and their
operands are cloned then if they have some pointers to Item_equal
objects those pointers must be set to NULL in the clones. Anyway
they are not valid in the pushed predicates.

2017-06-29 20:50:26 -07:00

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