From 19cc38b28dc318e6c0bc74117d8ab3d079f785a3 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 4 Feb 1999 14:52:00 +0000
Subject: [PATCH] Large object write-into-middle fix from Tatsuo Ishii.

---
 src/backend/storage/large_object/inv_api.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/backend/storage/large_object/inv_api.c b/src/backend/storage/large_object/inv_api.c
index 2802a16c13..b8d13a21e2 100644
--- a/src/backend/storage/large_object/inv_api.c
+++ b/src/backend/storage/large_object/inv_api.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/large_object/inv_api.c,v 1.47 1999/02/03 21:17:20 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/large_object/inv_api.c,v 1.48 1999/02/04 14:52:00 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -540,10 +540,16 @@ inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes)
 		else
 		{
 			if (obj_desc->offset > obj_desc->highbyte)
+			{
 				tuplen = inv_wrnew(obj_desc, buf, nbytes - nwritten);
+				ReleaseBuffer(buffer);
+			}
 			else
 				tuplen = inv_wrold(obj_desc, buf, nbytes - nwritten, &tuple, buffer);
-			ReleaseBuffer(buffer);
+				/* inv_wrold() has already issued WriteBuffer()
+				   which has decremented local reference counter
+				   (LocalRefCount). So we should not call
+				   ReleaseBuffer() here. -- Tatsuo 99/2/4 */
 		}
 
 		/* move pointers past the amount we just wrote */
-- 
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