diff --git a/src/backend/catalog/pg_conversion.c b/src/backend/catalog/pg_conversion.c
index 9bd587f40d..917d265691 100644
--- a/src/backend/catalog/pg_conversion.c
+++ b/src/backend/catalog/pg_conversion.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/catalog/pg_conversion.c,v 1.9 2002/12/04 05:18:32 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/catalog/pg_conversion.c,v 1.10 2003/01/27 00:45:19 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -143,7 +143,7 @@ ConversionDrop(Oid conversionOid, DropBehavior behavior)
 
 	if (!superuser() &&
 		((Form_pg_conversion) GETSTRUCT(tuple))->conowner != GetUserId())
-		elog(ERROR, "permission denied");
+		elog(ERROR, "DROP CONVERSION: permission denied");
 
 	ReleaseSysCache(tuple);
 
diff --git a/src/backend/commands/dbcommands.c b/src/backend/commands/dbcommands.c
index 51e1fc351a..516c900c41 100644
--- a/src/backend/commands/dbcommands.c
+++ b/src/backend/commands/dbcommands.c
@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.109 2002/12/05 04:04:42 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.110 2003/01/27 00:46:41 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -532,7 +532,7 @@ AlterDatabaseSet(AlterDatabaseSetStmt *stmt)
 
 	if (!(superuser()
 		|| ((Form_pg_database) GETSTRUCT(tuple))->datdba == GetUserId()))
-		elog(ERROR, "permission denied");
+		elog(ERROR, "ALTER DATABASE SET: permission denied");
 
 	MemSet(repl_repl, ' ', sizeof(repl_repl));
 	repl_repl[Anum_pg_database_datconfig - 1] = 'r';
diff --git a/src/backend/commands/user.c b/src/backend/commands/user.c
index 7d7dd0ecb4..c50524cf9b 100644
--- a/src/backend/commands/user.c
+++ b/src/backend/commands/user.c
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.115 2002/12/05 04:04:42 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.116 2003/01/27 00:47:37 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -908,7 +908,7 @@ AlterUserSet(AlterUserSetStmt *stmt)
 
 	if (!(superuser()
 	 || ((Form_pg_shadow) GETSTRUCT(oldtuple))->usesysid == GetUserId()))
-		elog(ERROR, "permission denied");
+		elog(ERROR, "ALTER USER SET: permission denied");
 
 	for (i = 0; i < Natts_pg_shadow; i++)
 		repl_repl[i] = ' ';
diff --git a/src/backend/tcop/utility.c b/src/backend/tcop/utility.c
index 45da9ba1c1..16ca619445 100644
--- a/src/backend/tcop/utility.c
+++ b/src/backend/tcop/utility.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.189 2003/01/10 22:03:28 petere Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.190 2003/01/27 00:48:28 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -973,7 +973,7 @@ ProcessUtility(Node *parsetree,
 
 		case T_CheckPointStmt:
 			if (!superuser())
-				elog(ERROR, "permission denied");
+				elog(ERROR, "CHECKPOINT: permission denied");
 			CreateCheckPoint(false, false);
 			break;
 
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c
index ad0df82135..1215439619 100644
--- a/src/backend/utils/init/miscinit.c
+++ b/src/backend/utils/init/miscinit.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.99 2003/01/25 05:19:46 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.100 2003/01/27 00:51:06 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -616,7 +616,7 @@ SetSessionAuthorization(AclId userid)
 
 	if (userid != AuthenticatedUserId &&
 		!AuthenticatedUserIsSuperuser)
-		elog(ERROR, "permission denied");
+		elog(ERROR, "SET SESSION AUTHORIZATION: permission denied");
 
 	SetSessionUserId(userid);
 	SetUserId(userid);