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bug#23856

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2007-05-21 10:27:33 +02:00
parent 1e33cfb36a
commit 84966af9fc
6 changed files with 111 additions and 6 deletions
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32
mysql-test/t/func_gconcat.test
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@ -507,4 +507,36 @@ SELECT GROUP_CONCAT(DISTINCT UCASE(a)) FROM t1;
SELECT GROUP_CONCAT(DISTINCT UCASE(b)) FROM t1;
DROP TABLE t1;
#
# Bug #23856:GROUP_CONCAT and ORDER BY: junk from previous rows for query on I_S
#
SET group_concat_max_len= 65535;
CREATE TABLE t1( a TEXT, b INTEGER );
INSERT INTO t1 VALUES ( 'a', 0 ), ( 'b', 1 );
SELECT GROUP_CONCAT( a ORDER BY b ) FROM t1;
SELECT GROUP_CONCAT(DISTINCT a ORDER BY b) FROM t1;
SELECT GROUP_CONCAT(DISTINCT a) FROM t1;
SET group_concat_max_len= 10;
SELECT GROUP_CONCAT(a ORDER BY b) FROM t1;
SELECT GROUP_CONCAT(DISTINCT a ORDER BY b) FROM t1;
SELECT GROUP_CONCAT(DISTINCT a) FROM t1;
SET group_concat_max_len= 65535;
CREATE TABLE t2( a TEXT );
INSERT INTO t2 VALUES( REPEAT( 'a', 5000 ) );
INSERT INTO t2 VALUES( REPEAT( 'b', 5000 ) );
INSERT INTO t2 VALUES( REPEAT( 'a', 5000 ) );
SELECT LENGTH( GROUP_CONCAT( DISTINCT a ) ) FROM t2;
CREATE TABLE t3( a TEXT, b INT );
INSERT INTO t3 VALUES( REPEAT( 'a', 65534 ), 1 );
INSERT INTO t3 VALUES( REPEAT( 'a', 65535 ), 2 );
INSERT INTO t3 VALUES( REPEAT( 'a', 65536 ), 3 );
SELECT LENGTH( GROUP_CONCAT( a ) ) FROM t3 WHERE b = 1;
SELECT LENGTH( GROUP_CONCAT( a ) ) FROM t3 WHERE b = 2;
SELECT LENGTH( GROUP_CONCAT( a ) ) FROM t3 WHERE b = 3;
SET group_concat_max_len= DEFAULT;
DROP TABLE t1, t2, t3;
--echo End of 5.0 tests