select * into /a1 from /hxyy/building limit 10
/**
fork(a)
**/
;


select * into /a1 from /hxyy/building_partition limit 10
/**
fork(a)
**/
;


select * into /a1 from /hxyy/floor limit 10
/**
fork(a)
**/
;


select * into /a1 from /hxyy/floor_partition limit 10
/**
fork(a)
**/
;


select * into /a1 from /hxyy/function_partition limit 10
/**
fork(a)
**/
;


/**
wait(a)
**/
;

select class,count(*) from /a1 group by class
/**
output()
**/
;