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Bug#29850: Wrong charset of GROUP_CONCAT result when the select employs

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a temporary table.

The result string of the Item_func_group_concat wasn't initialized in the 
copying constructor of the Item_func_group_concat class. This led to a
wrong charset of GROUP_CONCAT result when the select employs a temporary
table.

The copying constructor of the Item_func_group_concat class now correctly
initializes the charset of the result string.


mysql-test/t/func_gconcat.test:
  Added a test case for the bug#29850: Wrong charset of the GROUP_CONCAT result
  when the select employs a temporary table.
mysql-test/r/func_gconcat.result:
  Added a test case for the bug#29850: Wrong charset of the GROUP_CONCAT result
  when the select employs a temporary table.
sql/item_sum.cc:
  Bug#29850: Wrong charset of GROUP_CONCAT result when the select employs
  a temporary table.
  The copying constructor of the Item_func_group_concat class now correctly
  initializes the charset of the result string.
This commit is contained in:
unknown
2007-07-19 20:21:23 +04:00
parent 8b59beaebe
commit 7f6a816484
3 changed files with 21 additions and 0 deletions
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9
mysql-test/r/func_gconcat.result
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@@ -810,4 +810,13 @@ LENGTH( GROUP_CONCAT( a ) )
65535
SET group_concat_max_len= DEFAULT;
DROP TABLE t1, t2, t3;
set names latin1;
create table t1 (id int, name varchar(20)) DEFAULT CHARSET=utf8;
insert into t1 (id, name) values (1, "<22>ra");
insert into t1 (id, name) values (2, "<22>ra");
select b.id, group_concat(b.name) from t1 a, t1 b group by b.id;
id group_concat(b.name)
1 <09>ra,<2C>ra
2 <09>ra,<2C>ra
drop table t1;
End of 5.0 tests