diff options
Diffstat (limited to 'sql/sql_yacc.yy')
| -rw-r--r-- | sql/sql_yacc.yy | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy index 460234de156..bc21649fe54 100644 --- a/sql/sql_yacc.yy +++ b/sql/sql_yacc.yy @@ -4239,24 +4239,9 @@ insert_update_elem: simple_ident equal expr_or_default { LEX *lex= Lex; - uint8 tmp= MY_ITEM_PREFER_1ST_TABLE; if (lex->update_list.push_back($1) || lex->value_list.push_back($3)) YYABORT; - /* - INSERT INTO a1(a) SELECT b1.a FROM b1 ON DUPLICATE KEY - UPDATE a= a + b1.b - - Set MY_ITEM_PREFER_1ST_TABLE flag to $1 and $3 items - to prevent find_field_in_tables() doing further item searching - if it finds item occurence in first table in insert_table_list. - This allows to avoid ambiguity in resolving 'a' field in - example above. - */ - $1->walk(&Item::set_flags_processor, - (byte *) &tmp); - $3->walk(&Item::set_flags_processor, - (byte *) &tmp); }; opt_low_priority: |