diff options
Diffstat (limited to 'sql/sql_yacc.yy')
| -rw-r--r-- | sql/sql_yacc.yy | 60 |
1 files changed, 16 insertions, 44 deletions
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy index 6e231ef2447..bd85ce55edb 100644 --- a/sql/sql_yacc.yy +++ b/sql/sql_yacc.yy @@ -1137,7 +1137,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize); %type <variable> internal_variable_name -%type <select_lex> subselect subselect_init +%type <select_lex> subselect take_first_select get_select_lex %type <boolfunc2creator> comp_op @@ -1160,8 +1160,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize); field_opt_list opt_binary table_lock_list table_lock ref_list opt_on_delete opt_on_delete_list opt_on_delete_item use opt_delete_options opt_delete_option varchar nchar nvarchar - opt_outer table_list table_name table_alias_ref_list table_alias_ref - opt_option opt_place + opt_outer table_list table_name opt_option opt_place opt_attribute opt_attribute_list attribute column_list column_list_id opt_column_list grant_privileges grant_ident grant_list grant_option object_privilege object_privilege_list user_list rename_list @@ -6563,20 +6562,6 @@ table_name: } ; -table_alias_ref_list: - table_alias_ref - | table_alias_ref_list ',' table_alias_ref; - -table_alias_ref: - table_ident - { - if (!Select->add_table_to_list(YYTHD, $1, NULL, - TL_OPTION_UPDATING | TL_OPTION_ALIAS, - Lex->lock_option )) - MYSQL_YYABORT; - } - ; - if_exists: /* empty */ { $$= 0; } | IF EXISTS { $$= 1; } @@ -6847,7 +6832,7 @@ single_multi: if (multi_delete_set_locks_and_link_aux_tables(Lex)) MYSQL_YYABORT; } - | FROM table_alias_ref_list + | FROM table_wild_list { mysql_init_multi_delete(Lex); } USING join_table_list where_clause { @@ -9505,35 +9490,22 @@ union_option: | ALL { $$=0; } ; +take_first_select: /* empty */ + { + $$= Lex->current_select->master_unit()->first_select(); + }; + subselect: - SELECT_SYM subselect_start subselect_init subselect_end + SELECT_SYM subselect_start select_init2 take_first_select + subselect_end { - $$= $3; + $$= $4; } - | '(' subselect_start subselect ')' - { - THD *thd= YYTHD; - /* - note that a local variable can't be used for - $3 as it's used in local variable construction - and some compilers can't guarnatee the order - in which the local variables are initialized. - */ - List_iterator<Item> it($3->item_list); - Item *item; - /* - we must fill the items list for the "derived table". - */ - while ((item= it++)) - add_item_to_list(thd, item); - } - union_clause subselect_end { $$= $3; }; - -subselect_init: - select_init2 - { - $$= Lex->current_select->master_unit()->first_select(); - }; + | '(' subselect_start select_paren take_first_select + subselect_end ')' + { + $$= $4; + }; subselect_start: { |