From 1c8302cab32b7a38332a1f8a8d17583cd3a724e0 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Fri, 20 Apr 2007 20:15:52 +0000
Subject: [PATCH] Add comment on why deadlock detection error messages only
 prints numbers.

---
 src/backend/storage/lmgr/deadlock.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/backend/storage/lmgr/deadlock.c b/src/backend/storage/lmgr/deadlock.c
index f2130083ee..e767de4165 100644
--- a/src/backend/storage/lmgr/deadlock.c
+++ b/src/backend/storage/lmgr/deadlock.c
@@ -12,7 +12,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/deadlock.c,v 1.46 2007/03/03 19:32:54 neilc Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/deadlock.c,v 1.47 2007/04/20 20:15:52 momjian Exp $
  *
  *	Interface:
  *
@@ -836,6 +836,8 @@ PrintLockQueue(LOCK *lock, const char *info)
  * Append a description of a lockable object to buf.
  *
  * XXX probably this should be exported from lmgr.c or some such place.
+ * Ideally we would print names for the numeric values, but that requires
+ * getting locks on system tables, which might cause problems.
  */
 static void
 DescribeLockTag(StringInfo buf, const LOCKTAG *lock)