MySQL 8.4.3
Source Code Documentation
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This bundles several pieces of information useful when doing the IN->EXISTS transform. More...
Public Attributes | |
bool | added_to_where |
True: if IN->EXISTS has been done and has added a condition to the subquery's WHERE clause. More... | |
bool | dependent_before |
True: if subquery was dependent (correlated) before IN->EXISTS was done. More... | |
bool | dependent_after |
True: if subquery was dependent (correlated) after IN->EXISTS was done. More... | |
This bundles several pieces of information useful when doing the IN->EXISTS transform.
If this transform has not been done, pointer is NULL.
bool Item_in_subselect::In2exists_info::added_to_where |
True: if IN->EXISTS has been done and has added a condition to the subquery's WHERE clause.
bool Item_in_subselect::In2exists_info::dependent_after |
True: if subquery was dependent (correlated) after IN->EXISTS was done.
bool Item_in_subselect::In2exists_info::dependent_before |
True: if subquery was dependent (correlated) before IN->EXISTS was done.