Default client encoding to server encoding for dblink connections. Addresses issue raised by Ruzsinszky Attila and confirmed by others.
Default client encoding to server encoding for dblink connections. Addresses
issue raised by Ruzsinszky Attila and confirmed by others.

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edespino/gpdb,yuanzhao/gpdb,snaga/postgres-xl,adam8157/gpdb,lisakowen/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,Postgres-XL/Postgres-XL,zeroae/postgres-xl,arcivanov/postgres-xl,yazun/postgres-xl,yuanzhao/gpdb,ashwinstar/gpdb,Postgres-XL/Postgres-XL,jmcatamney/gpdb,50wu/gpdb,Chibin/gpdb,pavanvd/postgres-xl,postmind-net/postgres-xl,xinzweb/gpdb,greenplum-db/gpdb,lisakowen/gpdb,tpostgres-projects/tPostgres,Chibin/gpdb,jmcatamney/gpdb,ovr/postgres-xl,Chibin/gpdb,adam8157/gpdb,50wu/gpdb,Postgres-XL/Postgres-XL,techdragon/Postgres-XL,Chibin/gpdb,pavanvd/postgres-xl,kmjungersen/PostgresXL,postmind-net/postgres-xl,tpostgres-projects/tPostgres,edespino/gpdb,yazun/postgres-xl,snaga/postgres-xl,yuanzhao/gpdb,50wu/gpdb,ovr/postgres-xl,tpostgres-projects/tPostgres,yuanzhao/gpdb,kmjungersen/PostgresXL,greenplum-db/gpdb,Chibin/gpdb,jmcatamney/gpdb,50wu/gpdb,techdragon/Postgres-XL,zeroae/postgres-xl,arcivanov/postgres-xl,greenplum-db/gpdb,jmcatamney/gpdb,pavanvd/postgres-xl,edespino/gpdb,Chibin/gpdb,50wu/gpdb,postmind-net/postgres-xl,ovr/postgres-xl,edespino/gpdb,postmind-net/postgres-xl,greenplum-db/gpdb,edespino/gpdb,Chibin/gpdb,adam8157/gpdb,techdragon/Postgres-XL,yuanzhao/gpdb,edespino/gpdb,xinzweb/gpdb,oberstet/postgres-xl,lisakowen/gpdb,kmjungersen/PostgresXL,ashwinstar/gpdb,greenplum-db/gpdb,arcivanov/postgres-xl,Chibin/gpdb,kmjungersen/PostgresXL,ovr/postgres-xl,xinzweb/gpdb,pavanvd/postgres-xl,snaga/postgres-xl,tpostgres-projects/tPostgres,yazun/postgres-xl,lisakowen/gpdb,postmind-net/postgres-xl,edespino/gpdb,50wu/gpdb,xinzweb/gpdb,adam8157/gpdb,edespino/gpdb,zeroae/postgres-xl,techdragon/Postgres-XL,greenplum-db/gpdb,oberstet/postgres-xl,ashwinstar/gpdb,greenplum-db/gpdb,kmjungersen/PostgresXL,xinzweb/gpdb,arcivanov/postgres-xl,Chibin/gpdb,adam8157/gpdb,50wu/gpdb,arcivanov/postgres-xl,arcivanov/postgres-xl,oberstet/postgres-xl,edespino/gpdb,adam8157/gpdb,yuanzhao/gpdb,xinzweb/gpdb,oberstet/postgres-xl,edespino/gpdb,yuanzhao/gpdb,zeroae/postgres-xl,lisakowen/gpdb,xinzweb/gpdb,tpostgres-projects/tPostgres,oberstet/postgres-xl,techdragon/Postgres-XL,zeroae/postgres-xl,ashwinstar/gpdb,yuanzhao/gpdb,pavanvd/postgres-xl,Postgres-XL/Postgres-XL,lisakowen/gpdb,lisakowen/gpdb,yazun/postgres-xl,yuanzhao/gpdb,xinzweb/gpdb,adam8157/gpdb,greenplum-db/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,50wu/gpdb,adam8157/gpdb,snaga/postgres-xl,Chibin/gpdb,ovr/postgres-xl,yazun/postgres-xl,jmcatamney/gpdb,Postgres-XL/Postgres-XL,snaga/postgres-xl,lisakowen/gpdb,yuanzhao/gpdb,ashwinstar/gpdb