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A fix (bug #6142: SELECT DISTINCT on key field crashes server)

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sql/opt_range.cc:
  A fix (bug #6142: SELECT DISTINCT on key field crashes server)
  Code clean-up.
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unknown
2004-10-20 21:01:52 +05:00
parent 00bbd9a252
commit 53eb9871ad
3 changed files with 19 additions and 4 deletions
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6
mysql-test/r/group_min_max.result
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@ -1897,3 +1897,9 @@ id select_type table type possible_keys key key_len ref rows Extra
drop table t1;
drop table t2;
drop table t3;
create table t1 (
a varchar(30), b varchar(30), primary key(a), key(b)
) engine=innodb;
select distinct a from t1;
a
drop table t1;

10
mysql-test/t/group_min_max.test
View File

@ -577,3 +577,13 @@ explain select sum(ord(a1)) from t1 where (a1 > 'a') group by a1,a2,b;
drop table t1;
drop table t2;
drop table t3;
#
# Bug #6142: a problem with the empty innodb table
#
create table t1 (
a varchar(30), b varchar(30), primary key(a), key(b)
) engine=innodb;
select distinct a from t1;
drop table t1;