Oleksandr Byelkin 47e9678982 MDEV-29022 add_slave destroy child list and has dead code ...

Nowdays subquery in a UNION's ORDER BY placed correctly in fake select,
the only problem was incorrect Name_resolution_contect is fixed by this
patch in parsing, so we do not need scanning/reseting of ORDER BY of
a union.

2022-09-27 09:56:21 +02:00

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