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Bug #6658 MAX(column) returns incorrect coercibility

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Also, Item_sum_hybrid->charset was removed as redundant,
and switched to use collation.collation instead.


mysql-test/r/func_group.result:
  Bug #6658 MAX(column) returns incorrect coercibility
mysql-test/r/func_str.result:
  Bug #6658 MAX(column) returns incorrect coercibility
mysql-test/t/func_group.test:
  Bug #6658 MAX(column) returns incorrect coercibility
sql/item_func.cc:
  Bug #6658 MAX(column) returns incorrect coercibility
sql/item_sum.cc:
  Bug #6658 MAX(column) returns incorrect coercibility
sql/item_sum.h:
  Bug #6658 MAX(column) returns incorrect coercibility
This commit is contained in:
unknown
2004-11-19 19:35:36 +04:00
parent 77c163c3e3
commit aa6785d7a8
6 changed files with 48 additions and 12 deletions
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16
mysql-test/r/func_group.result
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@ -637,8 +637,22 @@ create table t1 (a char(10));
insert into t1 values ('a'),('b'),('c');
select coercibility(max(a)) from t1;
coercibility(max(a))
3
2
drop table t1;
create table t1 (a char character set latin2);
insert into t1 values ('a'),('b');
select charset(max(a)), coercibility(max(a)),
charset(min(a)), coercibility(min(a)) from t1;
charset(max(a)) coercibility(max(a)) charset(min(a)) coercibility(min(a))
latin2 2 latin2 2
create table t2 select max(a),min(a) from t1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`max(a)` char(1) character set latin2 default NULL,
`min(a)` char(1) character set latin2 default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t2,t1;
create table t1 (a int);
insert into t1 values (1);
select max(a) as b from t1 having b=1;