Sergei Petrunia c872125a66 MDEV-25630: Crash with window function in left expr of IN subquery ...

* Make Item_in_optimizer::fix_fields inherit the with_window_func
  attribute of the subquery's left expression (the subquery itself
  cannot have window functions that are aggregated in this select)

* Make Item_cache_wrapper::Item_cache_wrapper() inherit
  with_window_func attribute of the item it is caching.

2021-06-09 15:52:13 +03:00

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