Allow psql to do \p\g.  Ingres does it, why not us?
Allow psql to do \p\g.  Ingres does it, why not us?

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