Update the catalog query in gpload
Update the catalog query in gpload

Due to changes of external table "on master" feature

Signed-off-by: Haozhou Wang <16af34017e39fc2fe11eb364c1c2ef2fa8289c41@pivotal.io>

kaknikhil/gpdb,rvs/gpdb,adam8157/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,Quikling/gpdb,adam8157/gpdb,Chibin/gpdb,yuanzhao/gpdb,50wu/gpdb,ashwinstar/gpdb,Quikling/gpdb,xinzweb/gpdb,ashwinstar/gpdb,janebeckman/gpdb,Quikling/gpdb,edespino/gpdb,kaknikhil/gpdb,janebeckman/gpdb,jmcatamney/gpdb,rvs/gpdb,kaknikhil/gpdb,xinzweb/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,Quikling/gpdb,edespino/gpdb,Quikling/gpdb,janebeckman/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,greenplum-db/gpdb,lisakowen/gpdb,50wu/gpdb,rvs/gpdb,ashwinstar/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,Chibin/gpdb,janebeckman/gpdb,adam8157/gpdb,rvs/gpdb,greenplum-db/gpdb,xinzweb/gpdb,xinzweb/gpdb,jmcatamney/gpdb,janebeckman/gpdb,greenplum-db/gpdb,rvs/gpdb,Chibin/gpdb,edespino/gpdb,50wu/gpdb,kaknikhil/gpdb,rvs/gpdb,Chibin/gpdb,Quikling/gpdb,Quikling/gpdb,jmcatamney/gpdb,50wu/gpdb,janebeckman/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,janebeckman/gpdb,edespino/gpdb,Chibin/gpdb,50wu/gpdb,cjcjameson/gpdb,lisakowen/gpdb,lisakowen/gpdb,rvs/gpdb,ashwinstar/gpdb,rvs/gpdb,adam8157/gpdb,xinzweb/gpdb,adam8157/gpdb,50wu/gpdb,xinzweb/gpdb,edespino/gpdb,yuanzhao/gpdb,adam8157/gpdb,rvs/gpdb,cjcjameson/gpdb,rvs/gpdb,Chibin/gpdb,cjcjameson/gpdb,edespino/gpdb,adam8157/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,Quikling/gpdb,jmcatamney/gpdb,edespino/gpdb,50wu/gpdb,lisakowen/gpdb,Chibin/gpdb,ashwinstar/gpdb,edespino/gpdb,edespino/gpdb,kaknikhil/gpdb,Chibin/gpdb,jmcatamney/gpdb,lisakowen/gpdb,Chibin/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,lisakowen/gpdb,ashwinstar/gpdb,xinzweb/gpdb,greenplum-db/gpdb,Chibin/gpdb,greenplum-db/gpdb,Quikling/gpdb,jmcatamney/gpdb,cjcjameson/gpdb,janebeckman/gpdb,janebeckman/gpdb,Quikling/gpdb,xinzweb/gpdb,yuanzhao/gpdb,50wu/gpdb,jmcatamney/gpdb,edespino/gpdb,lisakowen/gpdb,lisakowen/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,adam8157/gpdb,janebeckman/gpdb