#View cannot has temporary table in definition -- source include/no_view_protocol.inc # # MDEV-4260 Don't create frm files for temporary tables # # Ensure we don't overflow the internal heap table size in the join set @save_use_stat_tables= @@use_stat_tables; set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity; set @@optimizer_use_condition_selectivity=1; set @@use_stat_tables= NEVER; set @@session.max_heap_table_size=16*1024*1024; create table t1 select * from information_schema.session_status where variable_name like 'Opened%'; create temporary table t2 (a int) engine=memory; select variable_name, session_status.variable_value - t1.variable_value from information_schema.session_status join t1 using (variable_name); let $tmpdir= `select @@tmpdir`; --list_files $tmpdir/ #sql* truncate table t2; select variable_name, session_status.variable_value - t1.variable_value from information_schema.session_status join t1 using (variable_name); set @@use_stat_tables= @save_use_stat_tables; set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; drop table t1;