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group_by.result, group_by.test:

Browse Source 
Added a test case for bug #8614.
sql_select.cc:
  Fixed bug #8614.
  SELECT DISTINCT ... GROUP BY 'const' must be equivalent to
  SELECT ... GROUP BY 'const'.


sql/sql_select.cc:
  Fixed bug #8614.
  SELECT DISTINCT ... GROUP BY 'const' must be equivalent to
  SELECT ... GROUP BY 'const'.
mysql-test/t/group_by.test:
  Added a test case for bug #8614.
mysql-test/r/group_by.result:
  Added a test case for bug #8614.
This commit is contained in:
unknown
2005-06-16 09:45:41 -07:00
parent c23524c714
commit 0812385dcc
3 changed files with 32 additions and 4 deletions
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10
mysql-test/r/group_by.result
View File

@ -722,3 +722,13 @@ WHERE hostname LIKE '%aol%'
GROUP BY hostname; GROUP BY hostname;
hostname no hostname no
cache-dtc-af05.proxy.aol.com 1 cache-dtc-af05.proxy.aol.com 1
DROP TABLE t1;
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (1,2), (1,3);
SELECT a, b FROM t1 GROUP BY 'const';
a b
1 2
SELECT DISTINCT a, b FROM t1 GROUP BY 'const';
a b
1 2
DROP TABLE t1;

15
mysql-test/t/group_by.test
View File

@ -1,3 +1,4 @@
# Initialise # Initialise
--disable_warnings --disable_warnings
drop table if exists t1,t2,t3; drop table if exists t1,t2,t3;
@ -524,7 +525,7 @@ select min(b) from t1;
drop table t1; drop table t1;
# #
# Test for bug #11088: GROUP BY a BLOB colimn with COUNT(DISTINCT column1) # Test for bug #11088: GROUP BY a BLOB column with COUNT(DISTINCT column1)
# #
CREATE TABLE t1 (id int PRIMARY KEY, user_id int, hostname longtext); CREATE TABLE t1 (id int PRIMARY KEY, user_id int, hostname longtext);
@ -539,3 +540,15 @@ SELECT hostname, COUNT(DISTINCT user_id) as no FROM t1
WHERE hostname LIKE '%aol%' WHERE hostname LIKE '%aol%'
GROUP BY hostname; GROUP BY hostname;
DROP TABLE t1;
#
# Test for bug #8614: GROUP BY 'const with DISTINCT
#
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (1,2), (1,3);
SELECT a, b FROM t1 GROUP BY 'const';
SELECT DISTINCT a, b FROM t1 GROUP BY 'const';
DROP TABLE t1;

11
sql/sql_select.cc
View File

@ -676,9 +676,14 @@ JOIN::optimize()
DBUG_RETURN(1); DBUG_RETURN(1);
} }
simple_group= 0; simple_group= 0;
group_list= remove_const(this, group_list, conds, {
rollup.state == ROLLUP::STATE_NONE, ORDER *old_group_list;
&simple_group); group_list= remove_const(this, (old_group_list= group_list), conds,
rollup.state == ROLLUP::STATE_NONE,
&simple_group);
if (old_group_list && !group_list)
select_distinct= 0;
}
if (!group_list && group) if (!group_list && group)
{ {
order=0; // The output has only one row order=0; // The output has only one row