Added better test for Bug #6794 Wrong outcome of update operation of ndb table

mysql-test/r/ndb_update.result

@@ -4,9 +4,10 @@ pk1 INT NOT NULL PRIMARY KEY,
 b INT NOT NULL,
 c INT NOT NULL
 ) ENGINE=ndbcluster;
-INSERT INTO t1 VALUES (0, 0, 0),(1,1,1);
+INSERT INTO t1 VALUES (0, 0, 1),(1,1,2),(2,2,3);
 UPDATE t1 set b = c;
 select * from t1 order by pk1;
 pk1	b	c
-0	0	0
-1	1	1
+0	1	1
+1	2	2
+2	3	3

mysql-test/t/ndb_update.test

@@ -17,6 +17,6 @@ CREATE TABLE t1 (
   c INT NOT NULL
 ) ENGINE=ndbcluster;
 
-INSERT INTO t1 VALUES (0, 0, 0),(1,1,1);
+INSERT INTO t1 VALUES (0, 0, 1),(1,1,2),(2,2,3);
 UPDATE t1 set b = c;
 select * from t1 order by pk1;