increasing the size of the pg_stat output, and enabling autoexplain. …

…both should not be enabled by default, but for now it will do.

etc/postgresql/9.1/main/postgresql.conf

@@ -51,8 +51,8 @@ wal_receiver_status_interval = 10s	# send replies at least this often
 hot_standby_feedback = on		# send info from standby to prevent
 					# query conflicts
 
-
-log_line_prefix = '%t '			# special values:
+log_line_prefix = '%t [%p]: [%l-1] host=%h,user=%u,db=%d,tx=%x,vtx=%v '
+					# special values:
 					#   %a = application name
 					#   %u = user name
 					#   %d = database name
@@ -75,7 +75,7 @@ log_line_prefix = '%t '			# special values:
 
 autovacuum = on			# Enable autovacuum subprocess?  'on'
 					# requires track_counts to also be on.
-log_autovacuum_min_duration = -1	# -1 disables, 0 logs all actions and
+log_autovacuum_min_duration = 100	# -1 disables, 0 logs all actions and
 					# their durations, > 0 logs only
 					# actions running at least this number
 					# of milliseconds.
@@ -107,9 +107,13 @@ lc_time = 'en_GB.UTF-8'
 default_text_search_config = 'pg_catalog.english'
 
 # pgmemcached (jurg)
-shared_preload_libraries = 'pgmemcache,pg_stat_statements'
-custom_variable_classes = 'pgmemcache,pg_stat_statements'
-pgmemcache.default_servers = 'objects.ldyegh.0001.euw1.cache.amazonaws.com:11211'
+shared_preload_libraries = 'pgmemcache,pg_stat_statements,auto_explain'
+custom_variable_classes = 'pgmemcache,pg_stat_statements,auto_explain'
+pgmemcache.default_servers = 'django-objects.ldyegh.0001.euw1.cache.amazonaws.com:11211'
+
+# increase pg_stat_statement size
+track_activity_query_size = 8192
+track_functions = all
 
 # we log slow queries over 100ms (by default)
 log_min_duration_statement = 100