Fix incorrect example of CAST syntax (was missing required parentheses).
Fix incorrect example of CAST syntax (was missing required parentheses).

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