Fix portal management code to support non-default command completion tags for portals using PORTAL_UTIL_SELECT strategy.  This is currently significant only for FETCH queries, which are supposed to include a count in the tag.  Seems it's been broken since 7.4, but nobody noticed before Knut Lehre.
Fix portal management code to support non-default command completion tags for
portals using PORTAL_UTIL_SELECT strategy.  This is currently significant only
for FETCH queries, which are supposed to include a count in the tag.  Seems
it's been broken since 7.4, but nobody noticed before Knut Lehre.

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