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-rw-r--r--mysql-test/t/heap_btree.test20
1 files changed, 19 insertions, 1 deletions
diff --git a/mysql-test/t/heap_btree.test b/mysql-test/t/heap_btree.test
index aea9e9486e5..f510f97fe9b 100644
--- a/mysql-test/t/heap_btree.test
+++ b/mysql-test/t/heap_btree.test
@@ -164,4 +164,22 @@ DELETE from t1 where a < 100;
SELECT * from t1;
DROP TABLE t1;
-# End of 4.1 tests
+#
+# Bug #9719: problem with delete
+#
+
+create table t1(a int not null, key using btree(a)) engine=heap;
+insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);
+select a from t1 where a > 2;
+delete from t1 where a < 4;
+select a from t1;
+insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3);
+select a from t1 where a > 4;
+delete from t1 where a > 4;
+select a from t1;
+select a from t1 where a > 3;
+delete from t1 where a >= 2;
+select a from t1;
+drop table t1;
+
+--echo End of 4.1 tests