Window functions + ORDER BY : first testcase

mysql-test/r/win_orderby.result

@@ -0,0 +1,26 @@
+drop table if exists t0,t1;
+create table t0(a int primary key);
+insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t1(
+pk int,
+a int,
+key(pk)
+);
+insert into t1
+select 
+A.a + B.a* 10 + C.a * 100,
+1
+from t0 A, t0 B, t0 C;
+select 
+pk,
+count(a) over (order by pk rows between 2 preceding and 2 following)
+from t1
+where pk between 1 and 30
+order by pk desc
+limit 4;
+pk	count(a) over (order by pk rows between 2 preceding and 2 following)
+30	3
+29	4
+28	5
+27	5
+drop table t0,t1;

mysql-test/t/win_orderby.test

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+#
+# Tests for window functions and ORDER BY 
+#
+
+--disable_warnings
+drop table if exists t0,t1;
+--enable_warnings
+
+create table t0(a int primary key);
+insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+create table t1(
+  pk int,
+  a int,
+  key(pk)
+);
+
+insert into t1
+select 
+  A.a + B.a* 10 + C.a * 100,
+  1
+from t0 A, t0 B, t0 C;
+
+select 
+  pk,
+  count(a) over (order by pk rows between 2 preceding and 2 following)
+from t1
+where pk between 1 and 30
+order by pk desc
+limit 4;
+
+drop table t0,t1;