Remove the xlog-centric "database system is ready" message and replace it with

"database system is ready to accept connections", which is issued by the
postmaster when it really is ready to accept connections.  Per proposal from
Markus Schiltknecht and subsequent discussion.

src/backend/access/transam/xlog.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.261 2007/02/01 19:10:25 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.262 2007/02/07 16:44:47 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -5168,9 +5168,6 @@ StartupXLOG(void)
 	/* Reload shared-memory state for prepared transactions */
 	RecoverPreparedTransactions();
 
-	ereport(LOG,
-			(errmsg("database system is ready")));
-
 	/* Shut down readFile facility, free space */
 	if (readFile >= 0)
 	{

src/backend/postmaster/postmaster.c

@@ -37,7 +37,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.516 2007/01/29 20:17:40 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.517 2007/02/07 16:44:48 tgl Exp $
  *
  * NOTES
  *
@@ -2083,6 +2083,9 @@ reaper(SIGNAL_ARGS)
 					PgArchPID = pgarch_start();
 				if (PgStatPID == 0)
 					PgStatPID = pgstat_start();
+				/* at this point we are really open for business */
+				ereport(LOG,
+						(errmsg("database system is ready to accept connections")));
 			}
 
 			continue;