After archive recovery, mark the last WAL segment from the parent timeline

ready for archival. It was marked at the next checkpoint anyway, but
waiting for the next checkpoint is an unnecessary delay.

Fujii Masao

src/backend/access/transam/xlog.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.335 2009/04/07 00:31:26 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.336 2009/04/22 19:51:12 heikki Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -4850,10 +4850,22 @@ exitArchiveRecovery(TimeLineID endTLI, uint32 endLogId, uint32 endLogSeg)
 		 * If we are establishing a new timeline, we have to copy data from
 		 * the last WAL segment of the old timeline to create a starting WAL
 		 * segment for the new timeline.
+		 *
+		 * Notify the archiver that the last WAL segment of the old timeline
+		 * is ready to copy to archival storage. Otherwise, it is not archived
+		 * for a while.
 		 */
 		if (endTLI != ThisTimeLineID)
+		{
 			XLogFileCopy(endLogId, endLogSeg,
 						 endTLI, endLogId, endLogSeg);
+
+			if (XLogArchivingActive())
+			{
+				XLogFileName(xlogpath, endTLI, endLogId, endLogSeg);
+				XLogArchiveNotify(xlogpath);
+			}
+		}
 	}
 
 	/*