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Code Activity

removed incorrect error message about aggregate functions

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improved mechanisn of detection posibility to be NULL for single row queries
switched off substitution optimisation for single row subqueries in PS due to problem in resolving substituted expressions
(changes to make subselects test working with PS protocol)
This commit is contained in:
bell@sanja.is.com.ua
2004-10-27 21:11:06 +03:00
parent 5706a92f06
commit 3ae044c24f
4 changed files with 91 additions and 24 deletions
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15
mysql-test/r/subselect.result
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@@ -55,7 +55,7 @@ SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1;
1
1
SELECT (SELECT 1), a;
ERROR 42S22: Unknown column 'a' in 'checking transformed subquery'
ERROR 42S22: Unknown column 'a' in 'field list'
SELECT 1 as a FROM (SELECT 1) as b HAVING (SELECT a)=1;
a
1
@@ -999,7 +999,9 @@ drop table t1, t2;
CREATE TABLE `t1` (`i` int(11) NOT NULL default '0',PRIMARY KEY (`i`)) ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES (1);
UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i));
ERROR HY000: Invalid use of group function
select * from t1;
i
1
drop table t1;
CREATE TABLE t1 (a int(1));
EXPLAIN EXTENDED SELECT (SELECT RAND() FROM t1) FROM t1;
@@ -1084,7 +1086,7 @@ SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bigint(20) NOT NULL default '0',
`(SELECT a)` bigint(20) default NULL
`(SELECT a)` bigint(20) NOT NULL default '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT a+0)) a;
@@ -1102,7 +1104,7 @@ a
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bigint(20) default NULL
`a` bigint(20) NOT NULL default '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (a int);
@@ -1186,11 +1188,12 @@ PRIMARY KEY (`i`)
) ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES (1);
UPDATE t1 SET i=i+(SELECT MAX(i) FROM (SELECT 1) t) WHERE i=(SELECT MAX(i));
ERROR HY000: Invalid use of group function
UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i));
ERROR HY000: Invalid use of group function
UPDATE t1 SET t.i=i+(SELECT MAX(i) FROM (SELECT 1) t);
ERROR 42S02: Unknown table 't' in field list
select * from t1;
i
1
drop table t1;
CREATE TABLE t1 (
id int(11) default NULL