Hi, Sachin! On Feb 09, Sachin Setiya wrote:

commit 3e49ebcacf9022931f0dfefcb44c13973128f8c4 Author: Sachin Setiya Date: Fri Feb 9 17:44:04 2018 +0530

MDEV-15167 Server crashes in in bitmap_bits_set upon REPAIR PARTITION ...

diff --git a/sql/sql_partition.cc b/sql/sql_partition.cc index a4d9406..3d53056 100644 --- a/sql/sql_partition.cc +++ b/sql/sql_partition.cc @@ -4583,6 +4583,11 @@ uint prep_alter_part_table(THD *thd, TABLE *table, Alter_info *alter_info, Alter_info::ALTER_TABLE_REORG | Alter_info::ALTER_REBUILD_PARTITION)) { + /* + You can't add column when we are doing alter related to partition + */ + DBUG_EXECUTE_IF("test_pseudo_invisible",{DBUG_ASSERT(0);}); + DBUG_EXECUTE_IF("test_completely_invisible",{DBUG_ASSERT(0);});

May be return error? Like with P_S? DBUG_EXECUTE_IF("test_pseudo_invisible", {DBUG_RETURN(1)}); but test it, may be you'll need my_error too, like DBUG_EXECUTE_IF("test_pseudo_invisible", { my_error(ER_INTERNAL_ERROR, MYF(0), "Don't to it with test_pseudo_invisible"); DBUG_RETURN(1) }); Regards, Sergei Chief Architect MariaDB and security@mariadb.org