Improve phrasing of warning message for NOTIFY queue getting too full.

Per gripe from Peter.

diff --git a/src/backend/commands/async.c b/src/backend/commands/async.c
index 11c84e7f3c89f734188e48b47edda8c52e1d6c30..d3bb8d492f22c6ab2cc2e4e44adb20c3b7ad42f6 100644 (file)
--- a/src/backend/commands/async.c
+++ b/src/backend/commands/async.c
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/backend/commands/async.c,v 1.155 2010/02/26 02:00:37 momjian Exp $
+ *       $PostgreSQL: pgsql/src/backend/commands/async.c,v 1.156 2010/04/05 00:42:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1421,12 +1421,12 @@ asyncQueueFillWarning(void)
                }
 
                ereport(WARNING,
-                               (errmsg("pg_notify queue is %.0f%% full", fillDegree * 100),
+                               (errmsg("NOTIFY queue is %.0f%% full", fillDegree * 100),
                                 (minPid != InvalidPid ?
-                                 errdetail("PID %d is among the slowest backends.", minPid)
+                                 errdetail("The server process with PID %d is among those with the oldest transactions.", minPid)
                                  : 0),
                                 (minPid != InvalidPid ?
-                                 errhint("Cleanup can only proceed if this backend ends its current transaction.")
+                                 errhint("The NOTIFY queue cannot be emptied until that process ends its current transaction.")
                                  : 0)));
 
                asyncQueueControl->lastQueueFillWarn = t;