Cosmetic improvements to dblink.
Cosmetic improvements to dblink.

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