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sql/sql_select.cc:
  Auto merged
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2003-06-19 16:15:11 +03:00
parent 9b83d3e536 a33adc45bc
commit 3f7e8b2146
3 changed files with 37 additions and 2 deletions
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17
mysql-test/r/subselect.result
View File

@ -1151,3 +1151,20 @@ INSERT INTO t1 VALUES (1,0,NULL,NULL),(2,0,NULL,NULL);
SELECT DISTINCT REF_ID FROM t1 WHERE ID= (SELECT DISTINCT REF_ID FROM t1 WHERE ID=2);
REF_ID
DROP TABLE t1;
(SELECT 1 as a) UNION (SELECT 1) ORDER BY (SELECT a+0);
a
1
CREATE TABLE `t1` (
`id` mediumint(8) unsigned NOT NULL auto_increment,
`pseudo` varchar(35) NOT NULL default '',
`email` varchar(60) NOT NULL default '',
PRIMARY KEY (`id`),
UNIQUE KEY `email` (`email`),
UNIQUE KEY `pseudo` (`pseudo`),
) TYPE=MyISAM CHARSET=latin1 PACK_KEYS=1 ROW_FORMAT=DYNAMIC;
INSERT INTO t1 (id,pseudo,email) VALUES (1,'test','test'),(2,'test1','test1');
SELECT pseudo as a, pseudo as b FROM t1 GROUP BY (SELECT a) ORDER BY (SELECT id*1);
a b
test test
test1 test1
drop table if exists t1;

16
mysql-test/t/subselect.test
View File

@ -732,3 +732,19 @@ CREATE TABLE t1 (
INSERT INTO t1 VALUES (1,0,NULL,NULL),(2,0,NULL,NULL);
SELECT DISTINCT REF_ID FROM t1 WHERE ID= (SELECT DISTINCT REF_ID FROM t1 WHERE ID=2);
DROP TABLE t1;
#
# reduced subselect in ORDER BY & GROUP BY clauses
#
(SELECT 1 as a) UNION (SELECT 1) ORDER BY (SELECT a+0);
CREATE TABLE `t1` (
`id` mediumint(8) unsigned NOT NULL auto_increment,
`pseudo` varchar(35) NOT NULL default '',
`email` varchar(60) NOT NULL default '',
PRIMARY KEY (`id`),
UNIQUE KEY `email` (`email`),
UNIQUE KEY `pseudo` (`pseudo`),
) TYPE=MyISAM CHARSET=latin1 PACK_KEYS=1 ROW_FORMAT=DYNAMIC;
INSERT INTO t1 (id,pseudo,email) VALUES (1,'test','test'),(2,'test1','test1');
SELECT pseudo as a, pseudo as b FROM t1 GROUP BY (SELECT a) ORDER BY (SELECT id*1);
drop table if exists t1;

6
sql/sql_select.cc
View File

@ -7230,9 +7230,11 @@ find_order_in_list(THD *thd, Item **ref_pointer_array,
}
order->in_field_list=0;
Item *it= *order->item;
if (it->fix_fields(thd, tables, order->item) || it->check_cols(1) ||
if (it->fix_fields(thd, tables, order->item) ||
//'it' ressigned because fix_field can change it
(it= *order->item), it->check_cols(1) ||
thd->is_fatal_error)
return 1; // Wrong field
return 1; // Wrong field
uint el= all_fields.elements;
all_fields.push_front(it); // Add new field to field list
ref_pointer_array[el]= it;