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-rw-r--r--mysql-test/t/ndb_insert.test9
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/t/ndb_insert.test b/mysql-test/t/ndb_insert.test
index bf25ca9a133..f346b7dc4ab 100644
--- a/mysql-test/t/ndb_insert.test
+++ b/mysql-test/t/ndb_insert.test
@@ -630,4 +630,13 @@ INSERT IGNORE INTO t1 VALUES (4,NULL),(5,NULL),(6,NULL),(7,4);
SELECT * FROM t1 ORDER BY pk;
DROP TABLE t1;
+#
+# Bug #27980 INSERT IGNORE wrongly ignores NULLs in unique index
+#
+
+create table t1(a int primary key, b int, unique key(b)) engine=ndb;
+insert ignore into t1 values (1,0), (2,0), (2,null), (3,null);
+select * from t1 order by a;
+drop table t1;
+
# End of 4.1 tests