Fix documentation misstatement: OLD is not valid in ON SELECT.
Fix documentation misstatement: OLD is not valid in ON SELECT.

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