Add test cases, pass simple 2 table join
Add test cases, pass simple 2 table join

yingjunwu/peloton,apavlo/peloton,PauloAmora/peloton,haojin2/peloton,seojungmin/peloton,prashasthip/peloton,vittvolt/peloton,PauloAmora/peloton,seojungmin/peloton,prashasthip/peloton,cmu-db/peloton,AngLi-Leon/peloton,haojin2/peloton,haojin2/peloton,yingjunwu/peloton,PauloAmora/peloton,yingjunwu/peloton,vittvolt/peloton,cmu-db/peloton,apavlo/peloton,AngLi-Leon/peloton,AllisonWang/peloton,malin1993ml/peloton,malin1993ml/peloton,apavlo/peloton,haojin2/peloton,yingjunwu/peloton,malin1993ml/peloton,seojungmin/peloton,vittvolt/peloton,apavlo/peloton,AllisonWang/peloton,PauloAmora/peloton,vittvolt/peloton,cmu-db/peloton,seojungmin/peloton,yingjunwu/peloton,AllisonWang/peloton,AngLi-Leon/peloton,malin1993ml/peloton,AngLi-Leon/peloton,AngLi-Leon/peloton,cmu-db/peloton,apavlo/peloton,haojin2/peloton,yingjunwu/peloton,prashasthip/peloton,vittvolt/peloton,malin1993ml/peloton,cmu-db/peloton,AngLi-Leon/peloton,cmu-db/peloton,prashasthip/peloton,prashasthip/peloton,seojungmin/peloton,apavlo/peloton,haojin2/peloton,seojungmin/peloton,AllisonWang/peloton,prashasthip/peloton,AllisonWang/peloton,malin1993ml/peloton,vittvolt/peloton,PauloAmora/peloton,AllisonWang/peloton,PauloAmora/peloton