Merge commit 'a4bebdd92624e018108c2610fc3f2c1584b6c687' into master

This is the commit merge of Postgres-XC with the intersection of
PostgreSQL REL9_1_STABLE and master branches.

Conflicts:
	COPYRIGHT
	contrib/pgbench/pgbench.c
	src/Makefile
	src/backend/access/transam/recovery.conf.sample
	src/backend/access/transam/varsup.c
	src/backend/access/transam/xlog.c
	src/backend/catalog/Makefile
	src/backend/catalog/dependency.c
	src/backend/catalog/system_views.sql
	src/backend/commands/copy.c
	src/backend/commands/explain.c
	src/backend/commands/sequence.c
	src/backend/commands/tablecmds.c
	src/backend/commands/vacuum.c
	src/backend/executor/nodeAgg.c
	src/backend/nodes/copyfuncs.c
	src/backend/nodes/equalfuncs.c
	src/backend/nodes/outfuncs.c
	src/backend/nodes/readfuncs.c
	src/backend/optimizer/path/allpaths.c
	src/backend/optimizer/plan/createplan.c
	src/backend/optimizer/plan/setrefs.c
	src/backend/parser/gram.y
	src/backend/parser/parse_utilcmd.c
	src/backend/postmaster/postmaster.c
	src/backend/rewrite/rewriteHandler.c
	src/backend/storage/lmgr/proc.c
	src/backend/tcop/postgres.c
	src/backend/utils/adt/ruleutils.c
	src/backend/utils/init/postinit.c
	src/backend/utils/misc/guc.c
	src/backend/utils/misc/postgresql.conf.sample
	src/backend/utils/sort/tuplesort.c
	src/bin/initdb/initdb.c
	src/bin/pg_ctl/pg_ctl.c
	src/bin/pg_dump/pg_dump.c
	src/include/access/xlog.h
	src/include/catalog/catversion.h
	src/include/catalog/indexing.h
	src/include/catalog/pg_aggregate.h
	src/include/catalog/pg_proc.h
	src/include/commands/copy.h
	src/include/nodes/parsenodes.h
	src/include/nodes/primnodes.h
	src/include/optimizer/pathnode.h
	src/include/parser/kwlist.h
	src/include/storage/procarray.h
	src/test/regress/expected/.gitignore
	src/test/regress/expected/aggregates.out
	src/test/regress/expected/alter_table.out
	src/test/regress/expected/bit.out
	src/test/regress/expected/box.out
	src/test/regress/expected/delete.out
	src/test/regress/expected/float4.out
	src/test/regress/expected/float8.out
	src/test/regress/expected/int2.out
	src/test/regress/expected/int8.out
	src/test/regress/expected/interval.out
	src/test/regress/expected/numeric.out
	src/test/regress/expected/point.out
	src/test/regress/expected/polygon.out
	src/test/regress/expected/sequence.out
	src/test/regress/expected/timestamp.out
	src/test/regress/expected/timestamptz.out
	src/test/regress/expected/transactions.out
	src/test/regress/expected/window.out
	src/test/regress/input/misc.source
	src/test/regress/output/create_misc_1.source
	src/test/regress/output/misc.source
	src/test/regress/sql/aggregates.sql
	src/test/regress/sql/alter_table.sql
	src/test/regress/sql/bit.sql
	src/test/regress/sql/box.sql
	src/test/regress/sql/delete.sql
	src/test/regress/sql/domain.sql
	src/test/regress/sql/float4.sql
	src/test/regress/sql/float8.sql
	src/test/regress/sql/int2.sql
	src/test/regress/sql/int8.sql
	src/test/regress/sql/interval.sql
	src/test/regress/sql/lseg.sql
	src/test/regress/sql/numeric.sql
	src/test/regress/sql/path.sql
	src/test/regress/sql/point.sql
	src/test/regress/sql/polygon.sql
	src/test/regress/sql/portals.sql
	src/test/regress/sql/sequence.sql
	src/test/regress/sql/timestamp.sql
	src/test/regress/sql/timestamptz.sql
	src/test/regress/sql/transactions.sql
	src/test/regress/sql/window.sql
	src/test/regress/sql/with.sql

1 files changed, 11 insertions, 3 deletions

diff --git a/src/bin/scripts/createlang.c b/src/bin/scripts/createlang.c
index a36b39bdee..c2153db630 100644
--- a/src/bin/scripts/createlang.c
+++ b/src/bin/scripts/createlang.c
@@ -2,10 +2,10 @@
  *
  * createlang
  *
- * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/createlang.c,v 1.35 2010/01/02 16:58:00 momjian Exp $
+ * src/bin/scripts/createlang.c
  *
  *-------------------------------------------------------------------------
  */
@@ -188,7 +188,15 @@ main(int argc, char *argv[])
 	}
 	PQclear(result);
 
-	printfPQExpBuffer(&sql, "CREATE LANGUAGE \"%s\";\n", langname);
+	/*
+	 * In 9.1 and up, assume that languages should be installed using CREATE
+	 * EXTENSION.  However, it's possible this tool could be used against an
+	 * older server, and it's easy enough to continue supporting the old way.
+	 */
+	if (PQserverVersion(conn) >= 90100)
+		printfPQExpBuffer(&sql, "CREATE EXTENSION \"%s\";\n", langname);
+	else
+		printfPQExpBuffer(&sql, "CREATE LANGUAGE \"%s\";\n", langname);
 
 	if (echo)
 		printf("%s", sql.data);