How to querying across databases with grails?

Is there a way to querying across 2 databases in grails ? Example (I made a select on two databases - works and test) :

一直喊no的歌叫什么意思？

冬天用糖水美容的做法？

主料：红枣、桂圆、辅料：山药、红薯2个、银耳3个、调料：糖1块； 1红枣桂圆洗净备用。