More testcases. Added .result file

mysql-test/r/win.result

+drop table if exists t1,t2;
+create table t1(a int, b int, x char(32));
+insert into t1 values (2, 10, 'xx');
+insert into t1 values (2, 10, 'zz');
+insert into t1 values (2, 20, 'yy');
+insert into t1 values (3, 10, 'xxx');
+insert into t1 values (3, 20, 'vvv');
+select a, row_number() over (partition by a order by b) from t1;
+a	row_number() over (partition by a order by b)
+2	1
+2	2
+2	3
+3	1
+3	2
+select a, b, x, row_number() over (partition by a order by x) from t1;
+a	b	x	row_number() over (partition by a order by x)
+2	10	xx	1
+2	10	zz	3
+2	20	yy	2
+3	10	xxx	2
+3	20	vvv	1
+drop table t1;
+create table t1 (pk int primary key, a int, b int);
+insert into t1 values 
+(1, 10, 22),
+(2, 11, 21),
+(3, 12, 20),
+(4, 13, 19),
+(5, 14, 18);
+select 
+pk, a, b, 
+row_number() over (order by a), 
+row_number() over (order by b)
+from t1;
+pk	a	b	row_number() over (order by a)	row_number() over (order by b)
+1	10	22	1	5
+2	11	21	2	4
+3	12	20	3	3
+4	13	19	4	2
+5	14	18	5	1
+drop table t1;

mysql-test/t/win.test

+#
+#  Window Functions Tests
+#
+
+--disable_warnings
+drop table if exists t1,t2;
+--enable_warnings
+
 create table t1(a int, b int, x char(32));
 insert into t1 values (2, 10, 'xx');
 insert into t1 values (2, 10, 'zz');
 insert into t1 values (2, 20, 'yy');
 insert into t1 values (3, 10, 'xxx');
 insert into t1 values (3, 20, 'vvv');
-# Uncommenting this line causes a crash in setup_group when executing the second
-# select.
-#select row_number() over (order by b) from t1;
-#select a, b, x, row_number() over (partition by a,b order by x),
-#                row_number() over (partition by a),
-#                row_number() over (partition by a order by x)
-#from t1;
-# Uncommenting this line causes a crash in filesort during init_for_filesort.
-#select a, b, x, row_number() over (partition by a order by x) from t1;
 
 select a, row_number() over (partition by a order by b) from t1;
 
+select a, b, x, row_number() over (partition by a order by x) from t1;
+
+drop table t1;
+
+create table t1 (pk int primary key, a int, b int);
+insert into t1 values 
+  (1, 10, 22),
+  (2, 11, 21),
+  (3, 12, 20),
+  (4, 13, 19),
+  (5, 14, 18);
+
+select 
+  pk, a, b, 
+  row_number() over (order by a), 
+  row_number() over (order by b)
+from t1;
+
 drop table t1;
+