Allow -2147483648 to be treated as an INT4 rather than INT8 constant. Per discussion with Paul Edwards.
Allow -2147483648 to be treated as an INT4 rather than INT8 constant.
Per discussion with Paul Edwards.

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