Allow a null pointer to be returned from get_opname(). Previously, had thrown an error, but looking for alternate strategies  for table indices utilization would prefer to continue.
Allow a null pointer to be returned from get_opname().
Previously, had thrown an error, but looking for alternate strategies
 for table indices utilization would prefer to continue.

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