SET SQL_MODE="";
create table t1 (c1 int primary key auto_increment, c2 varchar(10)) engine=memory;
show create table t1;
set session sql_mode='no_engine_substitution';
--error ER_OPTION_PREVENTS_STATEMENT
create table t2 (c1 int primary key auto_increment, c2 varchar(10)) engine=memory;
drop table t1;