diff -r -u postgresql-8.2.3.orig/doc/src/sgml/ref/lock.sgml postgresql-8.2.3/doc/src/sgml/ref/lock.sgml
--- postgresql-8.2.3.orig/doc/src/sgml/ref/lock.sgml	Sat Sep 16 04:30:19 2006
+++ postgresql-8.2.3/doc/src/sgml/ref/lock.sgml	Mon Feb 12 17:42:31 2007
@@ -26,6 +26,7 @@
 
     ACCESS SHARE | ROW SHARE | ROW EXCLUSIVE | SHARE UPDATE EXCLUSIVE
     | SHARE | SHARE ROW EXCLUSIVE | EXCLUSIVE | ACCESS EXCLUSIVE
+    | APPLICATION SHARE | APPLICATION EXCLUSIVE
 </synopsis>
  </refsynopsisdiv>
 
diff -r -u postgresql-8.2.3.orig/src/backend/parser/gram.y postgresql-8.2.3/src/backend/parser/gram.y
--- postgresql-8.2.3.orig/src/backend/parser/gram.y	Mon Feb 12 18:19:12 2007
+++ postgresql-8.2.3/src/backend/parser/gram.y	Mon Feb 12 18:08:35 2007
@@ -356,7 +356,7 @@
 
 /* ordinary key words in alphabetical order */
 %token <keyword> ABORT_P ABSOLUTE_P ACCESS ACTION ADD_P ADMIN AFTER
-	AGGREGATE ALL ALSO ALTER ANALYSE ANALYZE AND ANY ARRAY AS ASC
+	AGGREGATE ALL ALSO ALTER ANALYSE ANALYZE AND ANY APPLICATION ARRAY AS ASC
 	ASSERTION ASSIGNMENT ASYMMETRIC AT AUTHORIZATION
 
 	BACKWARD BEFORE BEGIN_P BETWEEN BIGINT BINARY BIT
@@ -5486,11 +5486,12 @@
 lock_type:	ACCESS SHARE					{ $$ = AccessShareLock; }
 			| ROW SHARE						{ $$ = RowShareLock; }
 			| ROW EXCLUSIVE					{ $$ = RowExclusiveLock; }
+			| APPLICATION SHARE    	    	{ $$ = ApplicationShareLock; }
+			| APPLICATION EXCLUSIVE			{ $$ = ApplicationExclusiveLock; }
 			| SHARE UPDATE EXCLUSIVE		{ $$ = ShareUpdateExclusiveLock; }
 			| SHARE							{ $$ = ShareLock; }
 			| SHARE ROW EXCLUSIVE			{ $$ = ShareRowExclusiveLock; }
 			| EXCLUSIVE						{ $$ = ExclusiveLock; }
-			| ACCESS EXCLUSIVE				{ $$ = AccessExclusiveLock; }
 		;
 
 opt_nowait:	NOWAIT							{ $$ = TRUE; }
@@ -8832,7 +8833,8 @@
  * looks too much like a function call for an LR(1) parser.
  */
 col_name_keyword:
-			  BIGINT
+			   APPLICATION
+			| BIGINT
 			| BIT
 			| BOOLEAN_P
 			| CHAR_P
diff -r -u postgresql-8.2.3.orig/src/backend/parser/keywords.c postgresql-8.2.3/src/backend/parser/keywords.c
--- postgresql-8.2.3.orig/src/backend/parser/keywords.c	Mon Feb 12 18:19:12 2007
+++ postgresql-8.2.3/src/backend/parser/keywords.c	Mon Feb 12 17:42:31 2007
@@ -46,6 +46,7 @@
 	{"analyze", ANALYZE},
 	{"and", AND},
 	{"any", ANY},
+	{"application", APPLICATION},
 	{"array", ARRAY},
 	{"as", AS},
 	{"asc", ASC},
diff -r -u postgresql-8.2.3.orig/src/backend/storage/lmgr/lock.c postgresql-8.2.3.patched/src/backend/storage/lmgr/lock.c
--- postgresql-8.2.3.orig/src/backend/storage/lmgr/lock.c	2006-10-04 04:29:57.000000000 +0400
+++ postgresql-8.2.3/src/backend/storage/lmgr/lock.c	2007-03-09 13:20:04.348635100 +0300
@@ -93,8 +93,14 @@
 	(1 << AccessShareLock) | (1 << RowShareLock) |
 	(1 << RowExclusiveLock) | (1 << ShareUpdateExclusiveLock) |
 	(1 << ShareLock) | (1 << ShareRowExclusiveLock) |
-	(1 << ExclusiveLock) | (1 << AccessExclusiveLock)
+	(1 << ExclusiveLock) | (1 << AccessExclusiveLock),
 
+    /* ApplicationShareLock*/
+    (1 << ApplicationExclusiveLock),
+
+    
+    /* ApplicationExclusiveLock*/
+    (1 << ApplicationExclusiveLock | 1 << ApplicationShareLock)
 };
 
 /* Names of lock modes, for debug printouts */
@@ -108,7 +114,9 @@
 	"ShareLock",
 	"ShareRowExclusiveLock",
 	"ExclusiveLock",
-	"AccessExclusiveLock"
+	"AccessExclusiveLock",
+    "ApplicationShareLock",
+    "ApplicationExclusiveLock"
 };
 
 #ifndef LOCK_DEBUG
@@ -116,7 +124,7 @@
 #endif
 
 static const LockMethodData default_lockmethod = {
-	AccessExclusiveLock,		/* highest valid lock mode number */
+	ApplicationExclusiveLock,		/* highest valid lock mode number */
 	true,
 	LockConflicts,
 	lock_mode_names,
@@ -128,7 +136,7 @@
 };
 
 static const LockMethodData user_lockmethod = {
-	AccessExclusiveLock,		/* highest valid lock mode number */
+	ApplicationExclusiveLock,		/* highest valid lock mode number */
 	false,
 	LockConflicts,
 	lock_mode_names,
diff -r -u postgresql-8.2.3.orig/src/include/storage/lock.h postgresql-8.2.3/src/include/storage/lock.h
--- postgresql-8.2.3.orig/src/include/storage/lock.h	Thu Nov 23 08:14:04 2006
+++ postgresql-8.2.3/src/include/storage/lock.h	Mon Feb 12 18:10:28 2007
@@ -50,7 +50,7 @@
 typedef int LOCKMODE;
 
 /* MAX_LOCKMODES cannot be larger than the # of bits in LOCKMASK */
-#define MAX_LOCKMODES		10
+#define MAX_LOCKMODES		12
 
 #define LOCKBIT_ON(lockmode) (1 << (lockmode))
 #define LOCKBIT_OFF(lockmode) (~(1 << (lockmode)))
@@ -118,6 +118,9 @@
 										 * UPDATE */
 #define AccessExclusiveLock		8		/* ALTER TABLE, DROP TABLE, VACUUM
 										 * FULL, and unqualified LOCK TABLE */
+
+#define ApplicationShareLock       9   /* requested explicitly */
+#define ApplicationExclusiveLock   10  /* requested explicitly */
 
 
 /*