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

#
# PostgreSQL configuration file
# -----------------------------
#
# This file consists of lines of the form:
#
#   name = value
#
# (The '=' is optional.) White space may be used. Comments are introduced
# with '#' anywhere on a line. The complete list of option names and
# allowed values can be found in the PostgreSQL documentation. The
# commented-out settings shown in this file represent the default values.
#
# Any option can also be given as a command line switch to the
# postmaster, e.g. 'postmaster -c log_connections=on'. Some options
# can be changed at run-time with the 'SET' SQL command.
#
# This file is read on postmaster startup and when the postmaster
# receives a SIGHUP. If you edit the file on a running system, you have 
# to SIGHUP the postmaster for the changes to take effect, or use 
# "pg_ctl reload".


#========================================================================


#
#	Connection Parameters
#
#tcpip_socket = false
#ssl = false

#max_connections = 32
#superuser_reserved_connections = 2

#port = 5432 

#unix_socket_directory = ''
#unix_socket_group = ''
#unix_socket_permissions = 0777	# octal

#virtual_host = ''

#krb_server_keyfile = ''


#
#	Shared Memory Size
#
#shared_buffers = 64		# min 16, at least max_connections*2, 8KB each
#max_locks_per_transaction = 64	# min 10, ~260*max_connections bytes each
#wal_buffers = 8		# min 4, 8KB each
# fsm = free space map
#max_fsm_relations = 1000	# min 100, ~50 bytes each
#max_fsm_pages = 20000		# min max_fsm_relations*16, 6 bytes each
# note: increasing max_connections also costs about 500 bytes each,
# in addition to costs from shared_buffers and max_locks_per_transaction.


#
#	Non-shared Memory Sizes
#
#sort_mem = 1024		# min 64, size in KB
#vacuum_mem = 8192		# min 1024, size in KB


#
#	Write-ahead log (WAL)
#
#checkpoint_segments = 3	# in logfile segments, min 1, 16MB each
#checkpoint_timeout = 300	# range 30-3600, in seconds
#checkpoint_warning = 30	# 0 is off, in seconds
#
#commit_delay = 0		# range 0-100000, in microseconds
#commit_siblings = 5		# range 1-1000
#
#fsync = true
#wal_sync_method = fsync	# the default varies across platforms:
#				# fsync, fdatasync, open_sync, or open_datasync
#wal_debug = 0			# range 0-16


#
#	Optimizer Parameters
#
#enable_seqscan = true
#enable_indexscan = true
#enable_tidscan = true
#enable_sort = true
#enable_hashagg = true
#enable_nestloop = true
#enable_mergejoin = true
#enable_hashjoin = true

#effective_cache_size = 1000	# typically 8KB each
#random_page_cost = 4		# units are one sequential page fetch cost
#cpu_tuple_cost = 0.01		# (same)
#cpu_index_tuple_cost = 0.001	# (same)
#cpu_operator_cost = 0.0025	# (same)

#from_collapse_limit = 8
#join_collapse_limit = 8	# 1 disables collapsing of explicit JOINs

#default_statistics_target = 10	# range 1-1000

#
#	GEQO Optimizer Parameters
#
#geqo = true
#geqo_selection_bias = 2.0	# range 1.5-2.0
#geqo_threshold = 11
#geqo_pool_size = 0		# default based on tables in statement, 
				# range 128-1024
#geqo_effort = 1
#geqo_generations = 0
#geqo_random_seed = -1		# auto-compute seed


#
#	Message display
#
#log_min_messages = notice	# Values, in order of decreasing detail:
				#   debug5, debug4, debug3, debug2, debug1,
				#   info, notice, warning, error, log, fatal,
				#   panic
#client_min_messages = notice	# Values, in order of decreasing detail:
				#   debug5, debug4, debug3, debug2, debug1,
				#   log, info, notice, warning, error
#silent_mode = false

#log_connections = false
#log_hostname = false
#log_source_port = false
#log_pid = false
#log_statement = false
#log_duration = false
#log_timestamp = false

#log_min_error_statement = panic # Values in order of increasing severity:
				 #   debug5, debug4, debug3, debug2, debug1,
				 #   info, notice, warning, error, panic(off)

#debug_print_parse = false
#debug_print_rewritten = false
#debug_print_plan = false
#debug_pretty_print = false

#explain_pretty_print = true

# requires USE_ASSERT_CHECKING
#debug_assertions = true


#
#	Syslog
#
#syslog = 0			# range 0-2
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'


#
#	Statistics
#
#log_parser_stats = false
#log_planner_stats = false
#log_executor_stats = false
#log_statement_stats = false

# requires BTREE_BUILD_STATS
#log_btree_build_stats = false


#
#	Access statistics collection
#
#stats_start_collector = true
#stats_reset_on_server_start = true
#stats_command_string = false
#stats_row_level = false
#stats_block_level = false


#
#	Misc
#
#dynamic_library_path = '$libdir'
#search_path = '$user,public'	# schema names
#datestyle = 'iso, us'
#timezone = unknown		# actually, defaults to TZ environment setting
#australian_timezones = false
#client_encoding = sql_ascii	# actually, defaults to database encoding
#authentication_timeout = 60	# 1-600, in seconds
#deadlock_timeout = 1000	# in milliseconds
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = false
#extra_float_digits = 0		# min -15, max 2
#max_expr_depth = 10000		# min 10
#max_files_per_process = 1000	# min 25
#password_encryption = true
#regex_flavor = advanced	# advanced, extended, or basic
#sql_inheritance = true
#transform_null_equals = false
#statement_timeout = 0		# 0 is disabled, in milliseconds
#db_user_namespace = false
#preload_libraries = ''