Update gram.c.
Update gram.c.

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