Add to documentation:
Add to documentation:

+         Setting <varname>statement_timeout</> in
+         <filename>postgresql.conf</> is not recommended because it
+         affects all sessions.

Backpatch to 8.3.X.

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