Index: src/backend/utils/misc/postgresql.conf.sample
===================================================================
--- src/backend/utils/misc/postgresql.conf.sample.orig
+++ src/backend/utils/misc/postgresql.conf.sample
@@ -442,14 +442,14 @@
 
 # - Where to Log -
 
-#log_destination = 'stderr'		# Valid values are combinations of
+log_destination = 'stderr'		# Valid values are combinations of
 					# stderr, csvlog, jsonlog, syslog, and
 					# eventlog, depending on platform.
 					# csvlog and jsonlog require
 					# logging_collector to be on.
 
 # This is used when logging to stderr:
-#logging_collector = off		# Enable capturing of stderr, jsonlog,
+logging_collector = on		# Enable capturing of stderr, jsonlog,
 					# and csvlog into log files. Required
 					# to be on for csvlogs and jsonlogs.
 					# (change requires restart)
@@ -558,6 +558,7 @@
 #log_error_verbosity = default		# terse, default, or verbose messages
 #log_hostname = off
 #log_line_prefix = '%m [%p] '		# special values:
+log_line_prefix = '%m %d %u [%p]'
 					#   %a = application name
 					#   %u = user name
 					#   %d = database name