Document the fact that COPY always uses the client encoding.
Document the fact that COPY always uses the client encoding.

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