Fix split partition as superuser for tables created by non-superuser.
Fix split partition as superuser for tables created by non-superuser.

When a superuser tries to split a partition table which was created by a non
superuser, the split should complete successfully and the resulting partitions
should have the owner set to the owner of the parent table.

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