Fix xmlconcat regression test
Fix xmlconcat regression test

greenplum-db/gpdb,ashwinstar/gpdb,tangp3/gpdb,kaknikhil/gpdb,kmjungersen/PostgresXL,royc1/gpdb,rvs/gpdb,foyzur/gpdb,foyzur/gpdb,Chibin/gpdb,xinzweb/gpdb,zeroae/postgres-xl,yuanzhao/gpdb,jmcatamney/gpdb,tpostgres-projects/tPostgres,pavanvd/postgres-xl,lpetrov-pivotal/gpdb,ovr/postgres-xl,ashwinstar/gpdb,lintzc/gpdb,atris/gpdb,rubikloud/gpdb,greenplum-db/gpdb,randomtask1155/gpdb,adam8157/gpdb,lintzc/gpdb,tpostgres-projects/tPostgres,foyzur/gpdb,janebeckman/gpdb,lpetrov-pivotal/gpdb,Quikling/gpdb,chrishajas/gpdb,Quikling/gpdb,50wu/gpdb,tangp3/gpdb,janebeckman/gpdb,Chibin/gpdb,kaknikhil/gpdb,lintzc/gpdb,zeroae/postgres-xl,zeroae/postgres-xl,ovr/postgres-xl,kmjungersen/PostgresXL,adam8157/gpdb,royc1/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,zaksoup/gpdb,randomtask1155/gpdb,Chibin/gpdb,lisakowen/gpdb,techdragon/Postgres-XL,tangp3/gpdb,edespino/gpdb,arcivanov/postgres-xl,randomtask1155/gpdb,Postgres-XL/Postgres-XL,xuegang/gpdb,cjcjameson/gpdb,tangp3/gpdb,janebeckman/gpdb,cjcjameson/gpdb,rvs/gpdb,royc1/gpdb,royc1/gpdb,royc1/gpdb,xuegang/gpdb,rvs/gpdb,Quikling/gpdb,ovr/postgres-xl,foyzur/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,pavanvd/postgres-xl,50wu/gpdb,lisakowen/gpdb,snaga/postgres-xl,Postgres-XL/Postgres-XL,postmind-net/postgres-xl,xinzweb/gpdb,chrishajas/gpdb,rvs/gpdb,Quikling/gpdb,jmcatamney/gpdb,zaksoup/gpdb,royc1/gpdb,adam8157/gpdb,royc1/gpdb,CraigHarris/gpdb,rubikloud/gpdb,royc1/gpdb,edespino/gpdb,lintzc/gpdb,edespino/gpdb,0x0FFF/gpdb,xinzweb/gpdb,ashwinstar/gpdb,Quikling/gpdb,atris/gpdb,50wu/gpdb,xinzweb/gpdb,techdragon/Postgres-XL,50wu/gpdb,zaksoup/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,lintzc/gpdb,atris/gpdb,kaknikhil/gpdb,xuegang/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,oberstet/postgres-xl,edespino/gpdb,pavanvd/postgres-xl,zeroae/postgres-xl,xuegang/gpdb,yuanzhao/gpdb,ahachete/gpdb,oberstet/postgres-xl,Quikling/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,CraigHarris/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,50wu/gpdb,xuegang/gpdb,lisakowen/gpdb,kaknikhil/gpdb,tangp3/gpdb,xinzweb/gpdb,lintzc/gpdb,techdragon/Postgres-XL,rvs/gpdb,techdragon/Postgres-XL,tpostgres-projects/tPostgres,Quikling/gpdb,greenplum-db/gpdb,lintzc/gpdb,tangp3/gpdb,Chibin/gpdb,Chibin/gpdb,adam8157/gpdb,postmind-net/postgres-xl,Postgres-XL/Postgres-XL,ahachete/gpdb,lpetrov-pivotal/gpdb,CraigHarris/gpdb,snaga/postgres-xl,janebeckman/gpdb,randomtask1155/gpdb,edespino/gpdb,rvs/gpdb,rubikloud/gpdb,edespino/gpdb,lisakowen/gpdb,yazun/postgres-xl,chrishajas/gpdb,CraigHarris/gpdb,ashwinstar/gpdb,0x0FFF/gpdb,tangp3/gpdb,Chibin/gpdb,ahachete/gpdb,chrishajas/gpdb,xuegang/gpdb,cjcjameson/gpdb,snaga/postgres-xl,cjcjameson/gpdb,adam8157/gpdb,oberstet/postgres-xl,xinzweb/gpdb,greenplum-db/gpdb,ahachete/gpdb,Chibin/gpdb,snaga/postgres-xl,ahachete/gpdb,arcivanov/postgres-xl,ovr/postgres-xl,lisakowen/gpdb,xinzweb/gpdb,kaknikhil/gpdb,pavanvd/postgres-xl,50wu/gpdb,rubikloud/gpdb,Chibin/gpdb,randomtask1155/gpdb,yuanzhao/gpdb,arcivanov/postgres-xl,oberstet/postgres-xl,lpetrov-pivotal/gpdb,cjcjameson/gpdb,xuegang/gpdb,rubikloud/gpdb,lpetrov-pivotal/gpdb,lisakowen/gpdb,randomtask1155/gpdb,CraigHarris/gpdb,zaksoup/gpdb,Quikling/gpdb,xuegang/gpdb,postmind-net/postgres-xl,lpetrov-pivotal/gpdb,atris/gpdb,cjcjameson/gpdb,arcivanov/postgres-xl,janebeckman/gpdb,arcivanov/postgres-xl,kaknikhil/gpdb,arcivanov/postgres-xl,rubikloud/gpdb,atris/gpdb,xuegang/gpdb,postmind-net/postgres-xl,zaksoup/gpdb,zaksoup/gpdb,rubikloud/gpdb,lintzc/gpdb,0x0FFF/gpdb,ashwinstar/gpdb,lisakowen/gpdb,xinzweb/gpdb,lisakowen/gpdb,rvs/gpdb,kmjungersen/PostgresXL,zaksoup/gpdb,ashwinstar/gpdb,yazun/postgres-xl,foyzur/gpdb,yazun/postgres-xl,ashwinstar/gpdb,CraigHarris/gpdb,foyzur/gpdb,edespino/gpdb,edespino/gpdb,rvs/gpdb,Chibin/gpdb,tpostgres-projects/tPostgres,cjcjameson/gpdb,adam8157/gpdb,ahachete/gpdb,Postgres-XL/Postgres-XL,greenplum-db/gpdb,janebeckman/gpdb,snaga/postgres-xl,zaksoup/gpdb,Quikling/gpdb,ahachete/gpdb,randomtask1155/gpdb,Postgres-XL/Postgres-XL,kaknikhil/gpdb,Chibin/gpdb,CraigHarris/gpdb,0x0FFF/gpdb,tpostgres-projects/tPostgres,atris/gpdb,lintzc/gpdb,jmcatamney/gpdb,chrishajas/gpdb,50wu/gpdb,rvs/gpdb,ovr/postgres-xl,0x0FFF/gpdb,kaknikhil/gpdb,yazun/postgres-xl,ahachete/gpdb,jmcatamney/gpdb,oberstet/postgres-xl,jmcatamney/gpdb,lpetrov-pivotal/gpdb,0x0FFF/gpdb,foyzur/gpdb,CraigHarris/gpdb,yuanzhao/gpdb,zeroae/postgres-xl,cjcjameson/gpdb,janebeckman/gpdb,randomtask1155/gpdb,50wu/gpdb,jmcatamney/gpdb,foyzur/gpdb,adam8157/gpdb,CraigHarris/gpdb,adam8157/gpdb,atris/gpdb,techdragon/Postgres-XL,yazun/postgres-xl,edespino/gpdb,janebeckman/gpdb,chrishajas/gpdb,atris/gpdb,janebeckman/gpdb,jmcatamney/gpdb,lpetrov-pivotal/gpdb,chrishajas/gpdb,rubikloud/gpdb,postmind-net/postgres-xl,kmjungersen/PostgresXL,chrishajas/gpdb,yuanzhao/gpdb,rvs/gpdb,0x0FFF/gpdb,edespino/gpdb,Quikling/gpdb,yuanzhao/gpdb,janebeckman/gpdb,0x0FFF/gpdb,pavanvd/postgres-xl,kmjungersen/PostgresXL,tangp3/gpdb