Make the new pg_stat_get_activity use OUT parameters, so you don't have to

specify the column names and types. Also simplifies the view.

Per comments from Tom.

src/backend/catalog/system_views.sql

@@ -3,7 +3,7 @@
  *
  * Copyright (c) 1996-2008, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.50 2008/05/07 14:41:55 mha Exp $
+ * $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.51 2008/05/08 08:58:59 mha Exp $
  */
 
 CREATE VIEW pg_roles AS 
@@ -353,12 +353,7 @@ CREATE VIEW pg_stat_activity AS
             S.backend_start,
             S.client_addr,
             S.client_port
-    FROM pg_database D, 
-            pg_stat_get_activity(NULL) AS S(datid oid, procpid int,
-               usesysid oid, current_query text, waiting boolean,
-               xact_start timestamptz, query_start timestamptz,
-               backend_start timestamptz, client_addr inet, client_port int),
-            pg_authid U 
+    FROM pg_database D, pg_stat_get_activity(NULL) AS S, pg_authid U
     WHERE S.datid = D.oid AND 
             S.usesysid = U.oid;
 

src/include/catalog/catversion.h

@@ -37,7 +37,7 @@
  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.456 2008/05/07 14:41:55 mha Exp $
+ * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.457 2008/05/08 08:58:59 mha Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -53,6 +53,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	200805071
+#define CATALOG_VERSION_NO	200805081
 
 #endif

src/include/catalog/pg_proc.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.497 2008/05/07 14:41:55 mha Exp $
+ * $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.498 2008/05/08 08:58:59 mha Exp $
  *
  * NOTES
  *	  The script catalog/genbki.sh reads this file and generates .bki
@@ -2904,7 +2904,7 @@ DATA(insert OID = 2784 (  pg_stat_get_last_autoanalyze_time PGNSP PGUID 12 1 0 f
 DESCR("statistics: last auto analyze time for a table");
 DATA(insert OID = 1936 (  pg_stat_get_backend_idset		PGNSP PGUID 12 1 100 f f t t s 0 23 "" _null_ _null_ _null_ pg_stat_get_backend_idset - _null_ _null_ ));
 DESCR("statistics: currently active backend IDs");
-DATA(insert OID = 2022 (  pg_stat_get_activity			PGNSP PGUID 12 1 100 f f f t s 1 2249 "23" _null_ _null_ _null_ pg_stat_get_activity - _null_ _null_ ));
+DATA(insert OID = 2022 (  pg_stat_get_activity			PGNSP PGUID 12 1 100 f f f t s 1 2249 "23" "{23,26,23,26,25,16,1184,1184,1184,869,23}" "{i,o,o,o,o,o,o,o,o,o,o}" "{pid,datid,procpid,usesysid,current_query,waiting,xact_start,query_start,backend_start,client_addr,client_port}" pg_stat_get_activity - _null_ _null_ ));
 DESCR("statistics: information about currently active backends");
 DATA(insert OID = 2026 (  pg_backend_pid				PGNSP PGUID 12 1 0 f f t f s 0 23 "" _null_ _null_ _null_ pg_backend_pid - _null_ _null_ ));
 DESCR("statistics: current backend PID");