Fix quote_ident to use quote_identifier rather than its own, not quite up-to-speed logic; in particular this will cause it to quote names that match keywords.  Remove unnecessary multibyte cruft from quote_literal (all backend-internal encodings are 8-bit-safe).
Fix quote_ident to use quote_identifier rather than its own, not quite
up-to-speed logic; in particular this will cause it to quote names that
match keywords.  Remove unnecessary multibyte cruft from quote_literal
(all backend-internal encodings are 8-bit-safe).

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