create table t(id int primary key);
set @@GLOBAL.DEBUG= '+d, before_manual_compaction';
set @@GLOBAL.DEBUG= '+d, after_manual_compaction';
#sending
drop table t;
set @@GLOBAL.DEBUG= '-d, before_manual_compaction';
set @@GLOBAL.DEBUG= '-d, after_manual_compaction';
shutdown;
select index_number from information_schema.xengine_ddl where table_name ='t';
index_number