Minor code cleanups.
Minor code cleanups.

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