Vicențiu Ciorbaru 6c4cf79d94 MDEV-13683: crash in Item_window_func::update_used_tables ...

Window definitions are resolved during fix fields. Updating used tables
for window functions must be done after all window functions have had a
chance to be resolved.

There was an additional problem with the implementation: expressions that
contained window functions never updated the expression's used tables.
To fix both these issues, make sure to call "update_used_tables" on all
items that contain window functions after we have passed through all
items.

2017-12-28 20:04:23 +02:00

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