EXPLAIN output now comes out as a query result, not a NOTICE message.

Also, fix debug logging of parse/plan trees so that the messages actually
go through elog(), not directly to stdout.

src/backend/utils/misc/guc.c

@@ -4,7 +4,7 @@
  * Support for grand unified configuration scheme, including SET
  * command, configuration file, and command line options.
  *
- * $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.62 2002/03/06 06:10:27 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.63 2002/03/24 04:31:08 tgl Exp $
  *
  * Copyright 2000 by PostgreSQL Global Development Group
  * Written by Peter Eisentraut <peter_e@gmx.net>.
@@ -82,6 +82,8 @@ bool		Show_query_stats = false;	/* this is sort of all three above
 										 * together */
 bool		Show_btree_build_stats = false;
 
+bool		Explain_pretty_print = true;
+
 bool		SQL_inheritance = true;
 
 bool		Australian_timezones = false;
@@ -293,6 +295,10 @@ static struct config_bool
 	},
 #endif
 
+	{
+		"explain_pretty_print", PGC_USERSET, PGC_S_DEFAULT, &Explain_pretty_print, true, NULL
+	},
+
 	{
 		"stats_start_collector", PGC_POSTMASTER, PGC_S_DEFAULT, &pgstat_collect_startcollector, true, NULL
 	},

src/backend/utils/misc/postgresql.conf.sample

@@ -136,6 +136,8 @@
 #debug_print_plan = false
 #debug_pretty_print = false
 
+#explain_pretty_print = true
+
 # requires USE_ASSERT_CHECKING
 #debug_assertions = true