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correct sql_alloc, ORDER BY and NULL value in group_concat
add comments
move test msg_arg
add test on NULL
This commit is contained in:
wax@kishkin.ru
2003-04-02 17:55:53 +06:00
parent 12f1cb55b5
commit 77eb790ec5
4 changed files with 210 additions and 196 deletions
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20
mysql-test/r/func_gconcat.result
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@ -121,7 +121,7 @@ grp ROUND(group_concat(a separator ""))
1 1
2 23
3 456789
drop table if exists t1;
drop table t1;
create table t1 (grp int, c char(10));
insert into t1 values (1,NULL);
insert into t1 values (2,"b");
@ -132,17 +132,23 @@ insert into t1 values (3,"D");
insert into t1 values (3,NULL);
insert into t1 values (3,NULL);
insert into t1 values (3,"D");
insert into t1 values (4,"");
insert into t1 values (5,NULL);
select grp,group_concat(c order by c) from t1 group by grp;
grp group_concat(c order by c)
1
2 b
3 D D E
1 NULL
2 b
3 D D E
4
5 NULL
set group_concat_max_len = 5;
select grp,group_concat(c) from t1 group by grp;
grp group_concat(c)
1
2 b
3 E D
1 NULL
2 b
3 E D D
4
5 NULL
Warnings:
Warning 1250 1 line(s) was(were) cut by group_concat()
show warnings;