Change the default setting for log_min_error_statement to ERROR. Per

recent discussion in which majority opinion was that this is a more
widely useful setting than the previous default of PANIC.

doc/src/sgml/config.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.95 2006/11/12 05:12:42 neilc Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.96 2006/11/21 01:23:37 tgl Exp $ -->
 
 <chapter Id="runtime-config">
   <title>Server Configuration</title>
@@ -2474,20 +2474,19 @@ SELECT * FROM parent WHERE key = 2400;
       <listitem>
        <para>
         Controls whether or not the SQL statement that causes an error
-        condition will also be recorded in the server log. All SQL
-        statements that cause an error of the specified level or
-        higher are logged.  The default is
-        <literal>PANIC</literal> (effectively turning this feature
-        off for normal use). Valid values are <literal>DEBUG5</literal>,
+        condition will be recorded in the server log.  The current
+        SQL statement is included in the log entry for any message of
+        the specified severity or higher.
+        Valid values are <literal>DEBUG5</literal>,
         <literal>DEBUG4</literal>, <literal>DEBUG3</literal>,
         <literal>DEBUG2</literal>, <literal>DEBUG1</literal>,
         <literal>INFO</literal>, <literal>NOTICE</literal>,
         <literal>WARNING</literal>, <literal>ERROR</literal>,
-        <literal>FATAL</literal>, and <literal>PANIC</literal>.  For
-        example, if you set this to <literal>ERROR</literal> then all
-        SQL statements causing errors, fatal errors, or panics will be
-        logged. Enabling this parameter can be helpful in tracking down
-        the source of any errors that appear in the server log.
+        <literal>FATAL</literal>, and <literal>PANIC</literal>.
+        The default is <literal>ERROR</literal>, which means statements
+        causing errors, fatal errors, or panics will be logged.
+        To effectively turn off logging of failing statements,
+        set this parameter to <literal>PANIC</literal>.
         Only superusers can change this setting.
        </para>
       </listitem>
@@ -2898,7 +2897,7 @@ SELECT * FROM parent WHERE key = 2400;
          query protocol, this setting likewise does not log statements that
          fail before the Execute phase (i.e., during parse analysis or
          planning).  Set <varname>log_min_error_statement</> to
-         <literal>error</> to log such statements.      
+         <literal>ERROR</> (or lower) to log such statements.      
         </para>
        </note>
       </listitem>

src/backend/utils/misc/guc.c

@@ -10,7 +10,7 @@
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.358 2006/11/05 22:42:09 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.359 2006/11/21 01:23:37 tgl Exp $
  *
  *--------------------------------------------------------------------
  */
@@ -176,7 +176,7 @@ bool		SQL_inheritance = true;
 
 bool		Password_encryption = true;
 
-int			log_min_error_statement = PANIC;
+int			log_min_error_statement = ERROR;
 int			log_min_messages = NOTICE;
 int			client_min_messages = NOTICE;
 int			log_min_duration_statement = -1;
@@ -1853,7 +1853,7 @@ static struct config_string ConfigureNamesString[] =
 						 "specified level or a higher level are logged.")
 		},
 		&log_min_error_statement_str,
-		"panic", assign_min_error_statement, NULL
+		"error", assign_min_error_statement, NULL
 	},
 
 	{

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

@@ -284,7 +284,7 @@
 
 #log_error_verbosity = default		# terse, default, or verbose messages
 
-#log_min_error_statement = panic	# Values in order of increasing severity:
+#log_min_error_statement = error	# Values in order of increasing severity:
 				 	#   debug5
 					#   debug4
 					#   debug3
@@ -294,7 +294,8 @@
 					#   notice
 					#   warning
 					#   error
-					#   panic(off)
+					#   fatal
+					#   panic (effectively off)
 
 #log_min_duration_statement = -1	# -1 is disabled, 0 logs all statements
 					# and their durations.