Added a test case for column update in the parser
Added a test case for column update in the parser

prashasthip/peloton,AllisonWang/peloton,cmu-db/peloton,AllisonWang/peloton,malin1993ml/peloton,apavlo/peloton,PauloAmora/peloton,cmu-db/peloton,prashasthip/peloton,seojungmin/peloton,vittvolt/15721-peloton,cmu-db/peloton,haojin2/peloton,phisiart/peloton-p3,malin1993ml/peloton,ShuxinLin/peloton,haojin2/peloton,vittvolt/peloton,seojungmin/peloton,PauloAmora/peloton,yingjunwu/peloton,haojin2/peloton,phisiart/peloton-p3,vittvolt/peloton,seojungmin/peloton,yingjunwu/peloton,AllisonWang/peloton,haojin2/peloton,ShuxinLin/peloton,phisiart/peloton-p3,vittvolt/peloton,apavlo/peloton,AllisonWang/peloton,yingjunwu/peloton,AngLi-Leon/peloton,seojungmin/peloton,cmu-db/peloton,malin1993ml/peloton,PauloAmora/peloton,AngLi-Leon/peloton,apavlo/peloton,vittvolt/15721-peloton,malin1993ml/peloton,yingjunwu/peloton,haojin2/peloton,AngLi-Leon/peloton,malin1993ml/peloton,ShuxinLin/peloton,phisiart/peloton-p3,apavlo/peloton,apavlo/peloton,PauloAmora/peloton,cmu-db/peloton,AngLi-Leon/peloton,haojin2/peloton,PauloAmora/peloton,cmu-db/peloton,AngLi-Leon/peloton,ShuxinLin/peloton,vittvolt/15721-peloton,yingjunwu/peloton,yingjunwu/peloton,phisiart/peloton-p3,phisiart/peloton-p3,ShuxinLin/peloton,malin1993ml/peloton,vittvolt/peloton,vittvolt/peloton,vittvolt/15721-peloton,apavlo/peloton,seojungmin/peloton,prashasthip/peloton,vittvolt/15721-peloton,seojungmin/peloton,prashasthip/peloton,ShuxinLin/peloton,AllisonWang/peloton,prashasthip/peloton,vittvolt/peloton,PauloAmora/peloton,AngLi-Leon/peloton,AllisonWang/peloton,prashasthip/peloton,vittvolt/15721-peloton