diff options
Diffstat (limited to 'sql/item.cc')
| -rw-r--r-- | sql/item.cc | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/sql/item.cc b/sql/item.cc index efd82d4f873..e7816b34b7e 100644 --- a/sql/item.cc +++ b/sql/item.cc @@ -2881,7 +2881,8 @@ table_map Item_field::all_used_tables() const return (get_depended_from() ? OUTER_REF_TABLE_BIT : field->table->map); } -void Item_field::fix_after_pullout(st_select_lex *new_parent, Item **ref) +void Item_field::fix_after_pullout(st_select_lex *new_parent, Item **ref, + bool merge) { if (new_parent == get_depended_from()) depended_from= NULL; @@ -2925,6 +2926,19 @@ void Item_field::fix_after_pullout(st_select_lex *new_parent, Item **ref) if (!need_change) return; + if (!merge) + { + /* + It is transformation without merge. + This field was "outer" for the inner SELECT where it was taken and + moved up. + "Outer" fields uses normal SELECT_LEX context of upper SELECTs for + name resolution, so we can switch everything to it safely. + */ + this->context= &new_parent->context; + return; + } + Name_resolution_context *ctx= new Name_resolution_context(); if (context->select_lex == new_parent) { @@ -8596,18 +8610,19 @@ bool Item_outer_ref::fix_fields(THD *thd, Item **reference) void Item_outer_ref::fix_after_pullout(st_select_lex *new_parent, - Item **ref_arg) + Item **ref_arg, bool merge) { if (get_depended_from() == new_parent) { *ref_arg= outer_ref; - (*ref_arg)->fix_after_pullout(new_parent, ref_arg); + (*ref_arg)->fix_after_pullout(new_parent, ref_arg, merge); } } -void Item_ref::fix_after_pullout(st_select_lex *new_parent, Item **refptr) +void Item_ref::fix_after_pullout(st_select_lex *new_parent, Item **refptr, + bool merge) { - (*ref)->fix_after_pullout(new_parent, ref); + (*ref)->fix_after_pullout(new_parent, ref, merge); if (get_depended_from() == new_parent) depended_from= NULL; } |