diff options
Diffstat (limited to 'sql/item_subselect.h')
| -rw-r--r-- | sql/item_subselect.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sql/item_subselect.h b/sql/item_subselect.h index 92b269d02f1..3c0b7bd6ade 100644 --- a/sql/item_subselect.h +++ b/sql/item_subselect.h @@ -482,6 +482,12 @@ protected: Item **having_item); public: Item *left_expr; + /* + Important for PS/SP: left_expr_orig is the item that left_expr originally + pointed at. That item is allocated on the statement arena, while + left_expr could later be changed to something on the execution arena. + */ + Item *left_expr_orig; /* Priority of this predicate in the convert-to-semi-join-nest process. */ int sj_convert_priority; /* |