Partition: uninitialized vers_info fix

mysql-test/suite/versioning/r/partition.result

@@ -18,14 +18,18 @@ x
 delete from t1;
 select * from t1;
 x
+select * from t1 partition (p0);
+x
+select * from t1 partition (p1);
+x
 select * from t1 for system_time all;
 x
 3
 300
-select * from t1 partition (p0);
+select * from t1 partition (p0) for system_time all;
 x
 3
-select * from t1 partition (p1);
+select * from t1 partition (p1) for system_time all;
 x
 300
 # Engine change native <-> non-native versioning prohibited

mysql-test/suite/versioning/t/partition.test

@@ -16,9 +16,11 @@ select * from t1 partition (p1);
 
 delete from t1;
 select * from t1;
-select * from t1 for system_time all;
 select * from t1 partition (p0);
 select * from t1 partition (p1);
+select * from t1 for system_time all;
+select * from t1 partition (p0) for system_time all;
+select * from t1 partition (p1) for system_time all;
 
 --echo # Engine change native <-> non-native versioning prohibited
 --replace_result $default_engine DEFAULT_ENGINE

sql/partition_info.h

@@ -292,7 +292,7 @@ class partition_info : public Sql_alloc
     part_expr(NULL), subpart_expr(NULL), item_free_list(NULL),
     first_log_entry(NULL), exec_log_entry(NULL), frm_log_entry(NULL),
     bitmaps_are_initialized(FALSE),
-    list_array(NULL), err_value(0),
+    list_array(NULL), vers_info(NULL), err_value(0),
     part_info_string(NULL),
     curr_part_elem(NULL), current_partition(NULL),
     curr_list_object(0), num_columns(0), table(NULL),