Bug fixes and/or minor optimization.
Bug fixes and/or minor optimization.

shuangshuangwang/spark,skonto/spark,publicRoman/spark,huang1900/spark,1haodian/spark,LantaoJin/spark,HyukjinKwon/spark,rekhajoshm/spark,adrian-ionescu/apache-spark,HyukjinKwon/spark,WeichenXu123/spark,srowen/spark,alunarbeach/spark,mkolod/incubator-spark,esi-mineset/spark,brad-kaiser/spark,lvdongr/spark,SnappyDataInc/spark,bdrillard/spark,taroplus/spark,andrewor14/iolap,ueshin/apache-spark,liutang123/spark,lvdongr/spark,kevinyu98/spark,dbtsai/spark,caneGuy/spark,sryza/spark,aosagie/spark,akopich/spark,michalsenkyr/spark,spark-test/spark,map222/spark,bOOm-X/spark,stanzhai/spark,lxsmnv/spark,cloud-fan/spark,zuotingbing/spark,esi-mineset/spark,Aegeaner/spark,huang1900/spark,taroplus/spark,kimoonkim/spark,ericvandenbergfb/spark,vax11780/spark,tejasapatil/spark,vinodkc/spark,WeichenXu123/spark,metamx/spark,wangmiao1981/spark,brad-kaiser/spark,cin/spark,someorz/spark,dhruve/spark,sahilTakiar/spark,witgo/spark,JoshRosen/spark,actuaryzhang/spark,apache/spark,SHASHANKB/spark,ibm-research-ireland/sparkoscope,aosagie/spark,tejasapatil/spark,nilsgrabbert/spark,tengpeng/spark,lyogavin/spark,someorz/spark,adrian-ionescu/apache-spark,highfei2011/spark,jkbradley/spark,markhamstra/spark,rikima/spark,SnappyDataInc/spark,nlalevee/spark,mike0sv/spark,brad-kaiser/spark,vax11780/spark,panfengfeng/spark,darionyaphet/spark,shubhamchopra/spark,pgandhi999/spark,ptkool/spark,LantaoJin/spark,zuotingbing/spark,ptkool/spark,lxsmnv/spark,ioana-delaney/spark,szhem/spark,mdespriee/spark,saturday-shi/spark,maropu/spark,lxsmnv/spark,nchammas/spark,joseph-torres/spark,guoxiaolongzte/spark,jlopezmalla/spark,nilsgrabbert/spark,saltstar/spark,sahilTakiar/spark,janewangfb/spark,hhbyyh/spark,gengliangwang/spark,bOOm-X/spark,caneGuy/spark,LantaoJin/spark,zero323/spark,setjet/spark,jkbradley/spark,LantaoJin/spark,dhruve/spark,poffuomo/spark,zzcclp/spark,szhem/spark,mzl9039/spark,ueshin/apache-spark,vinodkc/spark,milliman/spark,big-pegasus/spark,techaddict/spark,liutang123/spark,rednaxelafx/apache-spark,stanzhai/spark,alunarbeach/spark,ron8hu/spark,janewangfb/spark,rezasafi/spark,ericvandenbergfb/spark,Aegeaner/spark,haowu80s/spark,dongjoon-hyun/spark,vax11780/spark,cloud-fan/spark,LantaoJin/spark,ddna1021/spark,chuckchen/spark,holdenk/spark,skonto/spark,apache/spark,holdenk/spark,witgo/spark,hvanhovell/spark,mdespriee/spark,JerryLead/spark,ioana-delaney/spark,lyogavin/spark,metamx/spark,milliman/spark,taroplus/spark,ptkool/spark,ConeyLiu/spark,vinodkc/spark,rikima/spark,bravo-zhang/spark,shubhamchopra/spark,liutang123/spark,patrick-nicholson/spark,ueshin/apache-spark,jlopezmalla/spark,andrewor14/iolap,zhouyejoe/spark,highfei2011/spark,chuckchen/spark,jianran/spark,jiangxb1987/spark,dongjoon-hyun/spark,skonto/spark,brad-kaiser/spark,metamx/spark,shaneknapp/spark,sahilTakiar/spark,jrshust/spark,wangmiao1981/spark,publicRoman/spark,kiszk/spark,janewangfb/spark,zuotingbing/spark,MLnick/spark,skonto/spark,techaddict/spark,kimoonkim/spark,cloud-fan/spark,byakuinss/spark,facaiy/spark,minixalpha/spark,1haodian/spark,janewangfb/spark,kissmetrics/spark,apache-spark-on-k8s/spark,vax11780/spark,holdenk/spark,rezasafi/spark,xflin/spark,mzl9039/spark,minixalpha/spark,mkolod/incubator-spark,lvdongr/spark,pgandhi999/spark,zero323/spark,apache/spark,rekhajoshm/spark,someorz/spark,shaneknapp/spark,map222/spark,apache-spark-on-k8s/spark,jkbradley/spark,loneknightpy/spark,markhamstra/spark,sachintyagi22/spark,shaneknapp/spark,ioana-delaney/spark,JoshRosen/spark,techaddict/spark,kevinyu98/spark,srowen/spark,SnappyDataInc/spark,dbtsai/spark,michalsenkyr/spark,kiszk/spark,dhruve/spark,debugger87/spark,JerryLead/spark,shubhamchopra/spark,wangyum/spark,gioenn/xSpark,hvanhovell/spark,ron8hu/spark,chuckchen/spark,loneknightpy/spark,ankurdave/arthur,dongjoon-hyun/spark,aosagie/spark,aokolnychyi/spark,xflin/spark,joseph-torres/spark,saturday-shi/spark,wangyum/spark,zzcclp/spark,1haodian/spark,ajaysaini725/spark,caneGuy/spark,gioenn/xSpark,kimoonkim/spark,yanboliang/spark,ddna1021/spark,darionyaphet/spark,mkolod/incubator-spark,akopich/spark,lxsmnv/spark,stanzhai/spark,wzhfy/spark,darionyaphet/spark,huang1900/spark,hhbyyh/spark,ueshin/apache-spark,panfengfeng/spark,joseph-torres/spark,map222/spark,lxsmnv/spark,haowu80s/spark,pronix/spark,wgpshashank/spark,goldmedal/spark,dhruve/spark,poffuomo/spark,vinodkc/spark,map222/spark,huang1900/spark,apache/spark,gioenn/xSpark,aray/spark,caneGuy/spark,aray/spark,mahak/spark,hhbyyh/spark,vinodkc/spark,joseph-torres/spark,dongjoon-hyun/spark,actuaryzhang/spark,jrshust/spark,zhouyejoe/spark,ajaysaini725/spark,lvdongr/spark,eyalfa/spark,ptkool/spark,someorz/spark,UndeadBaneGitHub/spark,dbtsai/spark,sryza/spark,ericvandenbergfb/spark,lyogavin/spark,sureshthalamati/spark,zhouyejoe/spark,gengliangwang/spark,wangyum/spark,wzhfy/spark,shuangshuangwang/spark,andrewor14/iolap,jiangxb1987/spark,kevinyu98/spark,ajaysaini725/spark,akopich/spark,haowu80s/spark,joseph-torres/spark,lvdongr/spark,kiszk/spark,saltstar/spark,dotunolafunmiloye/spark,ahnqirage/spark,aosagie/spark,sachintyagi22/spark,ptkool/spark,jkbradley/spark,mdespriee/spark,tengpeng/spark,jianran/spark,zero323/spark,dotunolafunmiloye/spark,liutang123/spark,nlalevee/spark,lvdongr/spark,alunarbeach/spark,WeichenXu123/spark,WindCanDie/spark,actuaryzhang/spark,WeichenXu123/spark,sureshthalamati/spark,MLnick/spark,liyichao/spark,ueshin/apache-spark,UndeadBaneGitHub/spark,patrick-nicholson/spark,ericvandenbergfb/spark,spark-test/spark,joseph-torres/spark,szhem/spark,mkolod/incubator-spark,darionyaphet/spark,pronix/spark,zzcclp/spark,UndeadBaneGitHub/spark,dhruve/spark,SnappyDataInc/spark,poffuomo/spark,aray/spark,wangyum/spark,ron8hu/spark,MLnick/spark,BryanCutler/spark,loneknightpy/spark,aray/spark,map222/spark,cin/spark,goldmedal/spark,big-pegasus/spark,WeichenXu123/spark,mike0sv/spark,shubhamchopra/spark,ioana-delaney/spark,facaiy/spark,goldmedal/spark,byakuinss/spark,xuanyuanking/spark,lxsmnv/spark,highfei2011/spark,gioenn/xSpark,cloud-fan/spark,metamx/spark,ron8hu/spark,ddna1021/spark,nilsgrabbert/spark,metamx/spark,jianran/spark,srowen/spark,witgo/spark,bOOm-X/spark,xuanyuanking/spark,chuckchen/spark,rednaxelafx/apache-spark,guoxiaolongzte/spark,mdespriee/spark,kissmetrics/spark,SHASHANKB/spark,mike0sv/spark,minixalpha/spark,andrewor14/spark,sureshthalamati/spark,wangmiao1981/spark,minixalpha/spark,facaiy/spark,janewangfb/spark,kimoonkim/spark,setjet/spark,JoshRosen/spark,huang1900/spark,szhem/spark,JerryLead/spark,WindCanDie/spark,esi-mineset/spark,Aegeaner/spark,taroplus/spark,narahari92/spark,patrick-nicholson/spark,chuckchen/spark,xflin/spark,bdrillard/spark,nchammas/spark,ahnqirage/spark,minixalpha/spark,narahari92/spark,SHASHANKB/spark,byakuinss/spark,hhbyyh/spark,maropu/spark,JerryLead/spark,UndeadBaneGitHub/spark,debugger87/spark,techaddict/spark,highfei2011/spark,panfengfeng/spark,hvanhovell/spark,rikima/spark,publicRoman/spark,sureshthalamati/spark,narahari92/spark,spark-test/spark,nlalevee/spark,kevinyu98/spark,akopich/spark,holdenk/spark,tengpeng/spark,rezasafi/spark,aosagie/spark,wangyum/spark,akopich/spark,zuotingbing/spark,mahak/spark,andrewor14/spark,metamx/spark,debugger87/spark,map222/spark,rikima/spark,nlalevee/spark,rezasafi/spark,Aegeaner/spark,Aegeaner/spark,BryanCutler/spark,saltstar/spark,minixalpha/spark,gengliangwang/spark,zuotingbing/spark,HyukjinKwon/spark,icexelloss/spark,zhouyejoe/spark,zuotingbing/spark,ahnqirage/spark,liyichao/spark,bdrillard/spark,ron8hu/spark,witgo/spark,guoxiaolongzte/spark,wzhfy/spark,tejasapatil/spark,WeichenXu123/spark,JoshRosen/spark,tengpeng/spark,maropu/spark,adrian-ionescu/apache-spark,xuanyuanking/spark,taroplus/spark,nlalevee/spark,jrshust/spark,koeninger/spark,sahilTakiar/spark,highfei2011/spark,zhouyejoe/spark,ron8hu/spark,icexelloss/spark,jkbradley/spark,alunarbeach/spark,aokolnychyi/spark,matthewfranglen/spark,mzl9039/spark,apache/spark,bOOm-X/spark,gioenn/xSpark,ibm-research-ireland/sparkoscope,LantaoJin/spark,nilsgrabbert/spark,jlopezmalla/spark,esi-mineset/spark,ajaysaini725/spark,sahilTakiar/spark,jianran/spark,cin/spark,rikima/spark,ericvandenbergfb/spark,esi-mineset/spark,ioana-delaney/spark,Panos-Bletsos/spark-cost-model-optimizer,aosagie/spark,stanzhai/spark,bravo-zhang/spark,big-pegasus/spark,alunarbeach/spark,mahak/spark,brad-kaiser/spark,JoshRosen/spark,xflin/spark,andrewor14/spark,huang1900/spark,jiangxb1987/spark,facaiy/spark,publicRoman/spark,srowen/spark,aokolnychyi/spark,ahnqirage/spark,rednaxelafx/apache-spark,ioana-delaney/spark,kimoonkim/spark,bravo-zhang/spark,jrshust/spark,poffuomo/spark,MLnick/spark,jiangxb1987/spark,kimoonkim/spark,zero323/spark,yanboliang/spark,icexelloss/spark,zzcclp/spark,kissmetrics/spark,sachintyagi22/spark,rekhajoshm/spark,eyalfa/spark,stanzhai/spark,mike0sv/spark,ptkool/spark,byakuinss/spark,jrshust/spark,liyichao/spark,setjet/spark,xuanyuanking/spark,patrick-nicholson/spark,srowen/spark,hvanhovell/spark,rekhajoshm/spark,1haodian/spark,rezasafi/spark,JoshRosen/spark,techaddict/spark,UndeadBaneGitHub/spark,lvdongr/spark,nlalevee/spark,cloudera/spark,actuaryzhang/spark,shuangshuangwang/spark,apache/spark,rjpower/spark,jlopezmalla/spark,kissmetrics/spark,sachintyagi22/spark,yanboliang/spark,wzhfy/spark,haowu80s/spark,narahari92/spark,highfei2011/spark,gioenn/xSpark,mzl9039/spark,dbtsai/spark,liyichao/spark,holdenk/spark,szhem/spark,big-pegasus/spark,tengpeng/spark,caneGuy/spark,patrick-nicholson/spark,bdrillard/spark,guoxiaolongzte/spark,byakuinss/spark,pgandhi999/spark,xuanyuanking/spark,WindCanDie/spark,aosagie/spark,panfengfeng/spark,wgpshashank/spark,rezasafi/spark,byakuinss/spark,ConeyLiu/spark,JerryLead/spark,publicRoman/spark,esi-mineset/spark,yanboliang/spark,shaneknapp/spark,ConeyLiu/spark,tejasapatil/spark,SnappyDataInc/spark,xuanyuanking/spark,MLnick/spark,janewangfb/spark,skonto/spark,skonto/spark,ddna1021/spark,Panos-Bletsos/spark-cost-model-optimizer,liyichao/spark,mzl9039/spark,debugger87/spark,pronix/spark,wzhfy/spark,nilsgrabbert/spark,akopich/spark,mdespriee/spark,narahari92/spark,lxsmnv/spark,michalsenkyr/spark,ConeyLiu/spark,goldmedal/spark,huang1900/spark,witgo/spark,dongjoon-hyun/spark,kevinyu98/spark,tejasapatil/spark,rednaxelafx/apache-spark,michalsenkyr/spark,skonto/spark,zero323/spark,poffuomo/spark,joseph-torres/spark,ddna1021/spark,icexelloss/spark,jlopezmalla/spark,jrshust/spark,liutang123/spark,lyogavin/spark,andrewor14/spark,srowen/spark,hvanhovell/spark,goldmedal/spark,maropu/spark,bravo-zhang/spark,adrian-ionescu/apache-spark,javelinjs/spark,cloudera/spark,tejasapatil/spark,Aegeaner/spark,milliman/spark,sureshthalamati/spark,loneknightpy/spark,BryanCutler/spark,facaiy/spark,ahnqirage/spark,BryanCutler/spark,spark-test/spark,eyalfa/spark,vinodkc/spark,wangmiao1981/spark,actuaryzhang/spark,darionyaphet/spark,stanzhai/spark,SHASHANKB/spark,markhamstra/spark,SHASHANKB/spark,rikima/spark,mzl9039/spark,eyalfa/spark,yanboliang/spark,xflin/spark,bravo-zhang/spark,ron8hu/spark,gengliangwang/spark,WindCanDie/spark,brad-kaiser/spark,hhbyyh/spark,poffuomo/spark,HyukjinKwon/spark,jianran/spark,shuangshuangwang/spark,actuaryzhang/spark,SHASHANKB/spark,liyichao/spark,witgo/spark,pgandhi999/spark,jlopezmalla/spark,facaiy/spark,eyalfa/spark,saturday-shi/spark,guoxiaolongzte/spark,zzcclp/spark,cloud-fan/spark,publicRoman/spark,witgo/spark,koeninger/spark,ConeyLiu/spark,saturday-shi/spark,aray/spark,mahak/spark,map222/spark,aray/spark,1haodian/spark,gioenn/xSpark,sureshthalamati/spark,byakuinss/spark,ajaysaini725/spark,vinodkc/spark,kevinyu98/spark,taroplus/spark,bdrillard/spark,cin/spark,publicRoman/spark,shuangshuangwang/spark,ajaysaini725/spark,bravo-zhang/spark,zzcclp/spark,kiszk/spark,bdrillard/spark,panfengfeng/spark,liutang123/spark,zero323/spark,milliman/spark,ahnqirage/spark,MLnick/spark,loneknightpy/spark,someorz/spark,saturday-shi/spark,andrewor14/iolap,BryanCutler/spark,dhruve/spark,darionyaphet/spark,bOOm-X/spark,cin/spark,pgandhi999/spark,shaneknapp/spark,Aegeaner/spark,aokolnychyi/spark,hhbyyh/spark,rjpower/spark,zhouyejoe/spark,Panos-Bletsos/spark-cost-model-optimizer,hvanhovell/spark,kissmetrics/spark,rekhajoshm/spark,sahilTakiar/spark,dhruve/spark,shuangshuangwang/spark,setjet/spark,spark-test/spark,wzhfy/spark,pronix/spark,minixalpha/spark,dongjoon-hyun/spark,brad-kaiser/spark,HyukjinKwon/spark,facaiy/spark,kissmetrics/spark,rednaxelafx/apache-spark,sryza/spark,vax11780/spark,someorz/spark,yanboliang/spark,adrian-ionescu/apache-spark,rednaxelafx/apache-spark,liutang123/spark,cin/spark,markhamstra/spark,cloudera/spark,big-pegasus/spark,Panos-Bletsos/spark-cost-model-optimizer,nchammas/spark,gengliangwang/spark,setjet/spark,szhem/spark,jkbradley/spark,srowen/spark,michalsenkyr/spark,zuotingbing/spark,sryza/spark,milliman/spark,icexelloss/spark,spark-test/spark,apache-spark-on-k8s/spark,koeninger/spark,kissmetrics/spark,apache/spark,WindCanDie/spark,guoxiaolongzte/spark,nchammas/spark,dbtsai/spark,pgandhi999/spark,wgpshashank/spark,sachintyagi22/spark,markhamstra/spark,ibm-research-ireland/sparkoscope,Panos-Bletsos/spark-cost-model-optimizer,setjet/spark,kimoonkim/spark,aokolnychyi/spark,debugger87/spark,shaneknapp/spark,sureshthalamati/spark,xuanyuanking/spark,bOOm-X/spark,SnappyDataInc/spark,actuaryzhang/spark,ankurdave/arthur,highfei2011/spark,patrick-nicholson/spark,BryanCutler/spark,koeninger/spark,panfengfeng/spark,caneGuy/spark,tengpeng/spark,andrewor14/spark,holdenk/spark,milliman/spark,guoxiaolongzte/spark,andrewor14/spark,michalsenkyr/spark,bdrillard/spark,ibm-research-ireland/sparkoscope,ConeyLiu/spark,Panos-Bletsos/spark-cost-model-optimizer,darionyaphet/spark,andrewor14/spark,ahnqirage/spark,markhamstra/spark,kiszk/spark,techaddict/spark,tejasapatil/spark,jiangxb1987/spark,cin/spark,narahari92/spark,WindCanDie/spark,apache-spark-on-k8s/spark,cloud-fan/spark,maropu/spark,rjpower/spark,kiszk/spark,nchammas/spark,someorz/spark,saltstar/spark,rezasafi/spark,esi-mineset/spark,nlalevee/spark,big-pegasus/spark,sachintyagi22/spark,sachintyagi22/spark,ibm-research-ireland/sparkoscope,bOOm-X/spark,shubhamchopra/spark,techaddict/spark,jperla/spark-advancers,chuckchen/spark,andrewor14/iolap,andrewor14/iolap,ibm-research-ireland/sparkoscope,apache-spark-on-k8s/spark,mahak/spark,mzl9039/spark,HyukjinKwon/spark,kevinyu98/spark,rekhajoshm/spark,alunarbeach/spark,chuckchen/spark,big-pegasus/spark,nilsgrabbert/spark,wangyum/spark,xflin/spark,dbtsai/spark,kiszk/spark,wangmiao1981/spark,aokolnychyi/spark,SHASHANKB/spark,cloudera/spark,eyalfa/spark,UndeadBaneGitHub/spark,yanboliang/spark,BryanCutler/spark,UndeadBaneGitHub/spark,haowu80s/spark,zzcclp/spark,nchammas/spark,icexelloss/spark,icexelloss/spark,koeninger/spark,maropu/spark,nchammas/spark,adrian-ionescu/apache-spark,debugger87/spark,pgandhi999/spark,cloudera/spark,dotunolafunmiloye/spark,metamx/spark,wangmiao1981/spark,ddna1021/spark,zhouyejoe/spark,wangmiao1981/spark,goldmedal/spark,mahak/spark,stanzhai/spark,saltstar/spark,markhamstra/spark,shubhamchopra/spark,patrick-nicholson/spark,narahari92/spark,jianran/spark,ankurdave/arthur,ibm-research-ireland/sparkoscope,JerryLead/spark,WeichenXu123/spark,panfengfeng/spark,milliman/spark,debugger87/spark,jrshust/spark,jlopezmalla/spark,saturday-shi/spark,jiangxb1987/spark,setjet/spark,rekhajoshm/spark,maropu/spark,pronix/spark,goldmedal/spark,eyalfa/spark,andrewor14/iolap,ankurdave/arthur,taroplus/spark,akopich/spark,sryza/spark,ddna1021/spark,adrian-ionescu/apache-spark,JoshRosen/spark,SnappyDataInc/spark,hhbyyh/spark,tengpeng/spark,LantaoJin/spark,wzhfy/spark,ConeyLiu/spark,mdespriee/spark,cloud-fan/spark,nilsgrabbert/spark,loneknightpy/spark,sahilTakiar/spark,ptkool/spark,hvanhovell/spark,holdenk/spark,lyogavin/spark,gengliangwang/spark,rednaxelafx/apache-spark,jiangxb1987/spark,caneGuy/spark,ueshin/apache-spark,MLnick/spark,rjpower/spark,JerryLead/spark,xflin/spark,dbtsai/spark,zero323/spark,mdespriee/spark,WindCanDie/spark,michalsenkyr/spark,dotunolafunmiloye/spark,saltstar/spark,bravo-zhang/spark,ueshin/apache-spark,Panos-Bletsos/spark-cost-model-optimizer,saturday-shi/spark,szhem/spark,liyichao/spark,apache-spark-on-k8s/spark,alunarbeach/spark,gengliangwang/spark,jianran/spark,saltstar/spark,spark-test/spark,mahak/spark,ericvandenbergfb/spark,mike0sv/spark,haowu80s/spark,poffuomo/spark,loneknightpy/spark,rikima/spark,pronix/spark,aray/spark,ajaysaini725/spark,1haodian/spark,janewangfb/spark,wgpshashank/spark,shuangshuangwang/spark,wangyum/spark,rjpower/spark,aokolnychyi/spark,dongjoon-hyun/spark,shaneknapp/spark,apache-spark-on-k8s/spark,mkolod/incubator-spark,mike0sv/spark,ericvandenbergfb/spark,HyukjinKwon/spark,shubhamchopra/spark,1haodian/spark,jkbradley/spark,ioana-delaney/spark,mike0sv/spark