Commit b518d2a8 authored by unknown's avatar unknown

Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt

into  magare.gmz:/home/kgeorge/mysql/autopush/B27659-5.0-opt

parents a41b81e3 041767e1
......@@ -668,3 +668,17 @@ NULL
3
4
DROP TABLE t1;
CREATE TABLE t1 (a INT, b INT);
INSERT INTO t1 VALUES(1,1),(1,2),(1,3);
SELECT DISTINCT a, b FROM t1;
a b
1 1
1 2
1 3
SELECT DISTINCT a, a, b FROM t1;
a a b
1 1 1
1 1 2
1 1 3
DROP TABLE t1;
End of 5.0 tests
......@@ -540,3 +540,16 @@ EXPLAIN SELECT a FROM t1 GROUP BY a;
SELECT a FROM t1 GROUP BY a;
DROP TABLE t1;
#
#Bug #27659: SELECT DISTINCT returns incorrect result set when field is
#repeated
#
#
CREATE TABLE t1 (a INT, b INT);
INSERT INTO t1 VALUES(1,1),(1,2),(1,3);
SELECT DISTINCT a, b FROM t1;
SELECT DISTINCT a, a, b FROM t1;
DROP TABLE t1;
--echo End of 5.0 tests
......@@ -13539,9 +13539,7 @@ create_distinct_group(THD *thd, Item **ref_pointer_array,
ORDER *ord_iter;
for (ord_iter= group; ord_iter; ord_iter= ord_iter->next)
if ((*ord_iter->item)->eq(item, 1))
break;
if (ord_iter)
continue;
goto next_item;
ORDER *ord=(ORDER*) thd->calloc(sizeof(ORDER));
if (!ord)
......@@ -13556,6 +13554,7 @@ create_distinct_group(THD *thd, Item **ref_pointer_array,
*prev=ord;
prev= &ord->next;
}
next_item:
ref_pointer_array++;
}
*prev=0;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment