1 files changed, 46 insertions, 0 deletions
diff --git a/mysql-test/main/last_value.test b/mysql-test/main/last_value.test
new file mode 100644
index 00000000000..41cfdb5482d
--- /dev/null
+++ b/mysql-test/main/last_value.test
@@ -0,0 +1,46 @@
+#
+# Tests for the LAST_VALUE function
+#
+
+--disable_warnings
+drop table if exists t1;
+drop database if exists mysqltest;
+--enable_warnings
+
+# CREATE TABLE `queue` (
+#  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+#  `priority` int(11) DEFAULT NULL,
+#  `state` int(11) DEFAULT NULL,
+#  `pid` int(10) unsigned DEFAULT NULL,
+#  `dat` varbinary(200) DEFAULT NULL,
+#  PRIMARY KEY (`id`)
+# )
+
+CREATE TABLE t1 (a INT, b INT, c INT, d INT);
+INSERT INTO t1 VALUES (1,3,0,NULL),(2,2,0,NULL),(3,4,0,NULL),(4,2,0,NULL);
+SELECT * FROM t1;
+UPDATE t1 SET c=LAST_VALUE(@last_a:=a,@last_b:=b,@last_c:=c,1), d=4211 WHERE c=0 ORDER BY b DESC LIMIT 1;
+SELECT @last_a, @last_b, @last_c;
+SELECT * FROM t1;
+DROP TABLE t1;
+
+#
+# Test with different types
+#
+# PS protocol gives slightly different metadata for the length
+--enable_metadata
+--disable_ps_protocol
+SELECT LAST_VALUE(@last_a:=1,@last_b:=1);
+select @last_b;
+--enable_ps_protocol
+SELECT LAST_VALUE(@last_a:=1,@last_b:=1.0);
+select @last_b;
+SELECT LAST_VALUE(@last_a:=1,@last_b:="hello");
+select @last_b;
+SELECT date(LAST_VALUE(@last_a:=1,@last_b:="2001-02-03"));
+select @last_b;
+SELECT LAST_VALUE(@last_a:=1,@last_b:="2001-02-03",NULL);
+select @last_b;
+--disable_metadata
+--error ER_PARSE_ERROR
+SELECT LAST_VALUE();