MDEV-13937 Aria engine: Internal Error 160 after partition handling

Partition wasn't setting HA_OPTION_PACK_RECORD on ALTER TABLE
if the row format was PAGE.

(so one bit in the null bitmap was reserved for a deleted bit -
see make_empty_rec - and all actual null bits were one off)

1 files changed, 18 insertions, 0 deletions

diff --git a/mysql-test/suite/parts/t/partition_alter_maria.test b/mysql-test/suite/parts/t/partition_alter_maria.test
new file mode 100644
index 00000000000..db249591158
--- /dev/null
+++ b/mysql-test/suite/parts/t/partition_alter_maria.test
@@ -0,0 +1,18 @@
+#
+# MDEV-13937 Aria engine: Internal Error 160 after partition handling 
+#
+source include/have_partition.inc;
+create table t1 (
+  pk bigint not null auto_increment,
+  dt datetime default null,
+  unique (pk, dt)
+) engine=aria row_format=dynamic
+  partition by range  columns(dt) (
+    partition `p20171231` values less than ('2017-12-31'),
+    partition `p20181231` values less than ('2018-12-31')
+);
+insert into t1 values (1,'2017-09-28 15:12:00');
+select * from t1;
+alter table t1 drop partition p20181231;
+select * from t1;
+drop table t1;