fix compile problem.
fix compile problem.

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