Fix compile warning.
Fix compile warning.

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