Adjust costsize calculations to avoid introducing unnecessary roundoff error.  This seems to explain the differing choice of plan that's been causing geometry regress test to fail for the last few days.
Adjust costsize calculations to avoid introducing unnecessary roundoff
error.  This seems to explain the differing choice of plan that's been
causing geometry regress test to fail for the last few days.

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