Varun Gupta adbe1c5fe9 MDEV-6486: Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))' ...

failed with SELECT SQ, TEXT field

The functon find_all_keys does call Item_subselect::walk, which calls walk() for the subquery
The issue is that when a field is represented by Item_outer_ref(Item_direct_ref(Item_copy_string( ...))).
Item_copy_string does have a pointer to an Item_field in Item_copy::item but does not implement Item::walk method, so we are not
able to set the bitmap for that field. This is the reason why the assert fails.

Fixed by adding the walk method to Item_copy class.

2017-03-14 17:31:29 +05:30

62 KiB

Raw Blame History

View Raw