postgre查询一段时间内的数据

 

select * from zaiko 
where createtime between (now() - interval '3 Days') and now() ;

select * from zaiko 
where createtime between (now() - interval '5 Mins') and now()

 ps经过实际核实，这方法有毛病，刚入的数据，几十秒之后才能刷的出来