From 21d2fb6287347659dd6ce5835ddf16cd3be50279 Mon Sep 17 00:00:00 2001 From: unknown Date: Thu, 28 Jul 2005 19:11:29 -0700 Subject: func_gconcat.result, func_gconcat.test: Added a test case for bug #12095. sql_class.h: Fixed bug #12095: a join query with GROUP_CONCAT over a single row table. Added a flag to the TMP_TABLE_PARAM class forcing to put constant items generated after elimination of a single row table into temp table in some cases (e.g. when GROUP_CONCAT is calculated over a single row table). bk ci sql/item_sum.cc Fixed bug #12095: a join query with GROUP_CONCAT over a single row table. If GROUP_CONCAT is calculated we always put its argument into a temp table, even when the argument is a constant item. sql_select.cc: Fixed bug #12095: a join query with GROUP_CONCAT over one row table. If temp table is used to calculate GROUP_CONCAT the argument should be always put into this table, even when it is a constant item. sql/sql_select.cc: Fixed bug #12095: a join query with GROUP_CONCAT over one row table. If temp table is used to calculate GROUP_CONCAT the argument should be always put into this table, even when it is a constant item. sql/sql_class.h: Fixed bug #12095: a join query with GROUP_CONCAT over a single row table. Added a flag to the TMP_TABLE_PARAM class forcing to put constant items generated after elimination of a single row table into temp table in some cases (e.g. when GROUP_CONCAT is calculated over a single row table). bk ci sql/item_sum.cc Fixed bug #12095: a join query with GROUP_CONCAT over a single row table. If GROUP_CONCAT is calculated we always put its argument into a temp table, even when the argument is a constant item. mysql-test/t/func_gconcat.test: Added a test case for bug #12095. mysql-test/r/func_gconcat.result: Added a test case for bug #12095. --- mysql-test/t/func_gconcat.test | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'mysql-test/t/func_gconcat.test') diff --git a/mysql-test/t/func_gconcat.test b/mysql-test/t/func_gconcat.test index e93ffcb17b3..9793d0d0a2c 100644 --- a/mysql-test/t/func_gconcat.test +++ b/mysql-test/t/func_gconcat.test @@ -310,4 +310,37 @@ select a, group_concat(b order by b) from t1 group by a with rollup; select a, group_concat(distinct b order by b) from t1 group by a with rollup; drop table t1; +# +# Bug #12095: GROUP_CONCAT for one row table +# + +CREATE TABLE t1 ( + aID smallint(5) unsigned NOT NULL auto_increment, + sometitle varchar(255) NOT NULL default '', + bID smallint(5) unsigned NOT NULL, + PRIMARY KEY (aID), + UNIQUE KEY sometitle (sometitle) +); +INSERT INTO t1 SET sometitle = 'title1', bID = 1; +INSERT INTO t1 SET sometitle = 'title2', bID = 1; + +CREATE TABLE t2 ( + bID smallint(5) unsigned NOT NULL auto_increment, + somename varchar(255) NOT NULL default '', + PRIMARY KEY (bID), + UNIQUE KEY somename (somename) +); +INSERT INTO t2 SET somename = 'test'; + +SELECT COUNT(*), GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |') + FROM t1 JOIN t2 ON t1.bID = t2.bID; +INSERT INTO t2 SET somename = 'test2'; +SELECT COUNT(*), GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |') + FROM t1 JOIN t2 ON t1.bID = t2.bID; +DELETE FROM t2 WHERE somename = 'test2'; +SELECT COUNT(*), GROUP_CONCAT(DISTINCT t2.somename SEPARATOR ' |') + FROM t1 JOIN t2 ON t1.bID = t2.bID; + +DROP TABLE t1,t2; + # End of 4.1 tests -- cgit v1.2.1