diff options
Diffstat (limited to 'mysql-test/t/func_gconcat.test')
| -rw-r--r-- | mysql-test/t/func_gconcat.test | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/mysql-test/t/func_gconcat.test b/mysql-test/t/func_gconcat.test index 4e965d7e8c9..b24015ebb99 100644 --- a/mysql-test/t/func_gconcat.test +++ b/mysql-test/t/func_gconcat.test @@ -520,5 +520,35 @@ SELECT GROUP_CONCAT( a ORDER BY b ) FROM t1; SELECT GROUP_CONCAT( DISTINCT a ORDER BY b ) FROM t1; SET group_concat_max_len = DEFAULT; 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 |