add nest join testing script
add nest join testing script


Former-commit-id: b38f69d26d5cd361b9d79692768ff7cab80659c4
vittvolt/15721-peloton,phisiart/peloton-p3,haojin2/peloton,cmu-db/peloton,seojungmin/peloton,vittvolt/peloton,apavlo/peloton,apavlo/peloton,yingjunwu/peloton,prashasthip/peloton,prashasthip/peloton,AngLi-Leon/peloton,AngLi-Leon/peloton,PauloAmora/peloton,cmu-db/peloton,seojungmin/peloton,haojin2/peloton,AngLi-Leon/peloton,seojungmin/peloton,eric-haibin-lin/peloton-1,ShuxinLin/peloton,cmu-db/peloton,apavlo/peloton,AngLi-Leon/peloton,AngLi-Leon/peloton,vittvolt/15721-peloton,jessesleeping/iso_peloton,vittvolt/15721-peloton,wangziqi2016/peloton,AllisonWang/peloton,vittvolt/15721-peloton,phisiart/peloton-p3,wangziqi2016/peloton,apavlo/peloton,wangziqi2016/peloton,wangziqi2016/peloton,wangziqi2016/peloton,phisiart/peloton-p3,jessesleeping/iso_peloton,cmu-db/peloton,yingjunwu/peloton,jessesleeping/iso_peloton,apavlo/peloton,jessesleeping/iso_peloton,PauloAmora/peloton,malin1993ml/peloton,eric-haibin-lin/peloton-1,phisiart/peloton-p3,PauloAmora/peloton,malin1993ml/peloton,eric-haibin-lin/peloton-1,vittvolt/15721-peloton,haojin2/peloton,phisiart/peloton-p3,wangziqi2016/peloton,ShuxinLin/peloton,seojungmin/peloton,eric-haibin-lin/peloton-1,vittvolt/peloton,PauloAmora/peloton,PauloAmora/peloton,jessesleeping/iso_peloton,AllisonWang/peloton,ShuxinLin/peloton,haojin2/peloton,AllisonWang/peloton,malin1993ml/peloton,jessesleeping/iso_peloton,yingjunwu/peloton,cmu-db/peloton,yingjunwu/peloton,apavlo/peloton,haojin2/peloton,phisiart/peloton-p3,jessesleeping/iso_peloton,malin1993ml/peloton,prashasthip/peloton,prashasthip/peloton,seojungmin/peloton,AllisonWang/peloton,ShuxinLin/peloton,seojungmin/peloton,AngLi-Leon/peloton,haojin2/peloton,AllisonWang/peloton,vittvolt/15721-peloton,eric-haibin-lin/peloton-1,prashasthip/peloton,AllisonWang/peloton,cmu-db/peloton,vittvolt/peloton,vittvolt/peloton,ShuxinLin/peloton,prashasthip/peloton,yingjunwu/peloton,eric-haibin-lin/peloton-1,ShuxinLin/peloton,malin1993ml/peloton,yingjunwu/peloton,vittvolt/peloton,malin1993ml/peloton,PauloAmora/peloton,vittvolt/peloton