File: postgresql.conf.sample

package info (click to toggle)
postgresql-9.6 9.6.15-0+deb9u1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 129,420 kB
  • sloc: ansic: 742,939; sql: 67,276; xml: 30,901; yacc: 30,445; perl: 16,293; lex: 7,764; sh: 5,290; makefile: 4,780; python: 112; asm: 65; sed: 15
file content (646 lines) | stat: -rw-r--r-- 22,354 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
# -----------------------------
# PostgreSQL configuration file
# -----------------------------
#
# This file consists of lines of the form:
#
#   name = value
#
# (The "=" is optional.)  Whitespace may be used.  Comments are introduced with
# "#" anywhere on a line.  The complete list of parameter names and allowed
# values can be found in the PostgreSQL documentation.
#
# The commented-out settings shown in this file represent the default values.
# Re-commenting a setting is NOT sufficient to revert it to the default value;
# you need to reload the server.
#
# This file is read on server startup and when the server receives a SIGHUP
# signal.  If you edit the file on a running system, you have to SIGHUP the
# server for the changes to take effect, or use "pg_ctl reload".  Some
# parameters, which are marked below, require a server shutdown and restart to
# take effect.
#
# Any parameter can also be given as a command-line option to the server, e.g.,
# "postgres -c log_connections=on".  Some parameters can be changed at run time
# with the "SET" SQL command.
#
# Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
#                MB = megabytes                     s   = seconds
#                GB = gigabytes                     min = minutes
#                TB = terabytes                     h   = hours
#                                                   d   = days


#------------------------------------------------------------------------------
# FILE LOCATIONS
#------------------------------------------------------------------------------

# The default values of these variables are driven from the -D command-line
# option or PGDATA environment variable, represented here as ConfigDir.

#data_directory = 'ConfigDir'		# use data in another directory
					# (change requires restart)
#hba_file = 'ConfigDir/pg_hba.conf'	# host-based authentication file
					# (change requires restart)
#ident_file = 'ConfigDir/pg_ident.conf'	# ident configuration file
					# (change requires restart)

# If external_pid_file is not explicitly set, no extra PID file is written.
#external_pid_file = ''			# write an extra PID file
					# (change requires restart)


#------------------------------------------------------------------------------
# CONNECTIONS AND AUTHENTICATION
#------------------------------------------------------------------------------

# - Connection Settings -

#listen_addresses = 'localhost'		# what IP address(es) to listen on;
					# comma-separated list of addresses;
					# defaults to 'localhost'; use '*' for all
					# (change requires restart)
#port = 5432				# (change requires restart)
#max_connections = 100			# (change requires restart)
#superuser_reserved_connections = 3	# (change requires restart)
#unix_socket_directories = '/tmp'	# comma-separated list of directories
					# (change requires restart)
#unix_socket_group = ''			# (change requires restart)
#unix_socket_permissions = 0777		# begin with 0 to use octal notation
					# (change requires restart)
#bonjour = off				# advertise server via Bonjour
					# (change requires restart)
#bonjour_name = ''			# defaults to the computer name
					# (change requires restart)

# - Security and Authentication -

#authentication_timeout = 1min		# 1s-600s
#ssl = off				# (change requires restart)
#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
					# (change requires restart)
#ssl_prefer_server_ciphers = on		# (change requires restart)
#ssl_ecdh_curve = 'prime256v1'		# (change requires restart)
#ssl_cert_file = 'server.crt'		# (change requires restart)
#ssl_key_file = 'server.key'		# (change requires restart)
#ssl_ca_file = ''			# (change requires restart)
#ssl_crl_file = ''			# (change requires restart)
#password_encryption = on
#db_user_namespace = off
#row_security = on

# GSSAPI using Kerberos
#krb_server_keyfile = ''
#krb_caseins_users = off

# - TCP Keepalives -
# see "man 7 tcp" for details

#tcp_keepalives_idle = 0		# TCP_KEEPIDLE, in seconds;
					# 0 selects the system default
#tcp_keepalives_interval = 0		# TCP_KEEPINTVL, in seconds;
					# 0 selects the system default
#tcp_keepalives_count = 0		# TCP_KEEPCNT;
					# 0 selects the system default


#------------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#------------------------------------------------------------------------------

# - Memory -

#shared_buffers = 32MB			# min 128kB
					# (change requires restart)
#huge_pages = try			# on, off, or try
					# (change requires restart)
#temp_buffers = 8MB			# min 800kB
#max_prepared_transactions = 0		# zero disables the feature
					# (change requires restart)
# Caution: it is not advisable to set max_prepared_transactions nonzero unless
# you actively intend to use prepared transactions.
#work_mem = 4MB				# min 64kB
#maintenance_work_mem = 64MB		# min 1MB
#replacement_sort_tuples = 150000	# limits use of replacement selection sort
#autovacuum_work_mem = -1		# min 1MB, or -1 to use maintenance_work_mem
#max_stack_depth = 2MB			# min 100kB
#dynamic_shared_memory_type = posix	# the default is the first option
					# supported by the operating system:
					#   posix
					#   sysv
					#   windows
					#   mmap
					# use none to disable dynamic shared memory
					# (change requires restart)

# - Disk -

#temp_file_limit = -1			# limits per-process temp file space
					# in kB, or -1 for no limit

# - Kernel Resource Usage -

#max_files_per_process = 1000		# min 25
					# (change requires restart)
#shared_preload_libraries = ''		# (change requires restart)

# - Cost-Based Vacuum Delay -

#vacuum_cost_delay = 0			# 0-100 milliseconds
#vacuum_cost_page_hit = 1		# 0-10000 credits
#vacuum_cost_page_miss = 10		# 0-10000 credits
#vacuum_cost_page_dirty = 20		# 0-10000 credits
#vacuum_cost_limit = 200		# 1-10000 credits

# - Background Writer -

#bgwriter_delay = 200ms			# 10-10000ms between rounds
#bgwriter_lru_maxpages = 100		# 0-1000 max buffers written/round
#bgwriter_lru_multiplier = 2.0		# 0-10.0 multiplier on buffers scanned/round
#bgwriter_flush_after = 0		# measured in pages, 0 disables

# - Asynchronous Behavior -

#effective_io_concurrency = 1		# 1-1000; 0 disables prefetching
#max_worker_processes = 8		# (change requires restart)
#max_parallel_workers_per_gather = 0	# taken from max_worker_processes
#old_snapshot_threshold = -1		# 1min-60d; -1 disables; 0 is immediate
					# (change requires restart)
#backend_flush_after = 0		# measured in pages, 0 disables


#------------------------------------------------------------------------------
# WRITE AHEAD LOG
#------------------------------------------------------------------------------

# - Settings -

#wal_level = minimal			# minimal, replica, or logical
					# (change requires restart)
#fsync = on				# flush data to disk for crash safety
						# (turning this off can cause
						# unrecoverable data corruption)
#synchronous_commit = on		# synchronization level;
					# off, local, remote_write, remote_apply, or on
#wal_sync_method = fsync		# the default is the first option
					# supported by the operating system:
					#   open_datasync
					#   fdatasync (default on Linux)
					#   fsync
					#   fsync_writethrough
					#   open_sync
#full_page_writes = on			# recover from partial page writes
#wal_compression = off			# enable compression of full-page writes
#wal_log_hints = off			# also do full page writes of non-critical updates
					# (change requires restart)
#wal_buffers = -1			# min 32kB, -1 sets based on shared_buffers
					# (change requires restart)
#wal_writer_delay = 200ms		# 1-10000 milliseconds
#wal_writer_flush_after = 1MB		# measured in pages, 0 disables

#commit_delay = 0			# range 0-100000, in microseconds
#commit_siblings = 5			# range 1-1000

# - Checkpoints -

#checkpoint_timeout = 5min		# range 30s-1d
#max_wal_size = 1GB
#min_wal_size = 80MB
#checkpoint_completion_target = 0.5	# checkpoint target duration, 0.0 - 1.0
#checkpoint_flush_after = 0		# measured in pages, 0 disables
#checkpoint_warning = 30s		# 0 disables

# - Archiving -

#archive_mode = off		# enables archiving; off, on, or always
				# (change requires restart)
#archive_command = ''		# command to use to archive a logfile segment
				# placeholders: %p = path of file to archive
				#               %f = file name only
				# e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
#archive_timeout = 0		# force a logfile segment switch after this
				# number of seconds; 0 disables


#------------------------------------------------------------------------------
# REPLICATION
#------------------------------------------------------------------------------

# - Sending Server(s) -

# Set these on the master and on any standby that will send replication data.

#max_wal_senders = 0		# max number of walsender processes
				# (change requires restart)
#wal_keep_segments = 0		# in logfile segments, 16MB each; 0 disables
#wal_sender_timeout = 60s	# in milliseconds; 0 disables

#max_replication_slots = 0	# max number of replication slots
				# (change requires restart)
#track_commit_timestamp = off	# collect timestamp of transaction commit
				# (change requires restart)

# - Master Server -

# These settings are ignored on a standby server.

#synchronous_standby_names = ''	# standby servers that provide sync rep
				# number of sync standbys and comma-separated list of application_name
				# from standby(s); '*' = all
#vacuum_defer_cleanup_age = 0	# number of xacts by which cleanup is delayed

# - Standby Servers -

# These settings are ignored on a master server.

#hot_standby = off			# "on" allows queries during recovery
					# (change requires restart)
#max_standby_archive_delay = 30s	# max delay before canceling queries
					# when reading WAL from archive;
					# -1 allows indefinite delay
#max_standby_streaming_delay = 30s	# max delay before canceling queries
					# when reading streaming WAL;
					# -1 allows indefinite delay
#wal_receiver_status_interval = 10s	# send replies at least this often
					# 0 disables
#hot_standby_feedback = off		# send info from standby to prevent
					# query conflicts
#wal_receiver_timeout = 60s		# time that receiver waits for
					# communication from master
					# in milliseconds; 0 disables
#wal_retrieve_retry_interval = 5s	# time to wait before retrying to
					# retrieve WAL after a failed attempt


#------------------------------------------------------------------------------
# QUERY TUNING
#------------------------------------------------------------------------------

# - Planner Method Configuration -

#enable_bitmapscan = on
#enable_hashagg = on
#enable_hashjoin = on
#enable_indexscan = on
#enable_indexonlyscan = on
#enable_material = on
#enable_mergejoin = on
#enable_nestloop = on
#enable_seqscan = on
#enable_sort = on
#enable_tidscan = on

# - Planner Cost Constants -

#seq_page_cost = 1.0			# measured on an arbitrary scale
#random_page_cost = 4.0			# same scale as above
#cpu_tuple_cost = 0.01			# same scale as above
#cpu_index_tuple_cost = 0.005		# same scale as above
#cpu_operator_cost = 0.0025		# same scale as above
#parallel_tuple_cost = 0.1		# same scale as above
#parallel_setup_cost = 1000.0	# same scale as above
#min_parallel_relation_size = 8MB
#effective_cache_size = 4GB

# - Genetic Query Optimizer -

#geqo = on
#geqo_threshold = 12
#geqo_effort = 5			# range 1-10
#geqo_pool_size = 0			# selects default based on effort
#geqo_generations = 0			# selects default based on effort
#geqo_selection_bias = 2.0		# range 1.5-2.0
#geqo_seed = 0.0			# range 0.0-1.0

# - Other Planner Options -

#default_statistics_target = 100	# range 1-10000
#constraint_exclusion = partition	# on, off, or partition
#cursor_tuple_fraction = 0.1		# range 0.0-1.0
#from_collapse_limit = 8
#join_collapse_limit = 8		# 1 disables collapsing of explicit
					# JOIN clauses
#force_parallel_mode = off


#------------------------------------------------------------------------------
# ERROR REPORTING AND LOGGING
#------------------------------------------------------------------------------

# - Where to Log -

#log_destination = 'stderr'		# Valid values are combinations of
					# stderr, csvlog, syslog, and eventlog,
					# depending on platform.  csvlog
					# requires logging_collector to be on.

# This is used when logging to stderr:
#logging_collector = off		# Enable capturing of stderr and csvlog
					# into log files. Required to be on for
					# csvlogs.
					# (change requires restart)

# These are only used if logging_collector is on:
#log_directory = 'pg_log'		# directory where log files are written,
					# can be absolute or relative to PGDATA
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'	# log file name pattern,
					# can include strftime() escapes
#log_file_mode = 0600			# creation mode for log files,
					# begin with 0 to use octal notation
#log_truncate_on_rotation = off		# If on, an existing log file with the
					# same name as the new log file will be
					# truncated rather than appended to.
					# But such truncation only occurs on
					# time-driven rotation, not on restarts
					# or size-driven rotation.  Default is
					# off, meaning append to existing files
					# in all cases.
#log_rotation_age = 1d			# Automatic rotation of logfiles will
					# happen after that time.  0 disables.
#log_rotation_size = 10MB		# Automatic rotation of logfiles will
					# happen after that much log output.
					# 0 disables.

# These are relevant when logging to syslog:
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'
#syslog_sequence_numbers = on
#syslog_split_messages = on

# This is only relevant when logging to eventlog (win32):
# (change requires restart)
#event_source = 'PostgreSQL'

# - When to Log -

#client_min_messages = notice		# values in order of decreasing detail:
					#   debug5
					#   debug4
					#   debug3
					#   debug2
					#   debug1
					#   log
					#   notice
					#   warning
					#   error

#log_min_messages = warning		# values in order of decreasing detail:
					#   debug5
					#   debug4
					#   debug3
					#   debug2
					#   debug1
					#   info
					#   notice
					#   warning
					#   error
					#   log
					#   fatal
					#   panic

#log_min_error_statement = error	# values in order of decreasing detail:
					#   debug5
					#   debug4
					#   debug3
					#   debug2
					#   debug1
					#   info
					#   notice
					#   warning
					#   error
					#   log
					#   fatal
					#   panic (effectively off)

#log_min_duration_statement = -1	# -1 is disabled, 0 logs all statements
					# and their durations, > 0 logs only
					# statements running at least this number
					# of milliseconds


# - What to Log -

#debug_print_parse = off
#debug_print_rewritten = off
#debug_print_plan = off
#debug_pretty_print = on
#log_checkpoints = off
#log_connections = off
#log_disconnections = off
#log_duration = off
#log_error_verbosity = default		# terse, default, or verbose messages
#log_hostname = off
#log_line_prefix = ''			# special values:
					#   %a = application name
					#   %u = user name
					#   %d = database name
					#   %r = remote host and port
					#   %h = remote host
					#   %p = process ID
					#   %t = timestamp without milliseconds
					#   %m = timestamp with milliseconds
					#   %n = timestamp with milliseconds (as a Unix epoch)
					#   %i = command tag
					#   %e = SQL state
					#   %c = session ID
					#   %l = session line number
					#   %s = session start timestamp
					#   %v = virtual transaction ID
					#   %x = transaction ID (0 if none)
					#   %q = stop here in non-session
					#        processes
					#   %% = '%'
					# e.g. '<%u%%%d> '
#log_lock_waits = off			# log lock waits >= deadlock_timeout
#log_statement = 'none'			# none, ddl, mod, all
#log_replication_commands = off
#log_temp_files = -1			# log temporary files equal or larger
					# than the specified size in kilobytes;
					# -1 disables, 0 logs all temp files
#log_timezone = 'GMT'


# - Process Title -

#cluster_name = ''			# added to process titles if nonempty
					# (change requires restart)
#update_process_title = on


#------------------------------------------------------------------------------
# RUNTIME STATISTICS
#------------------------------------------------------------------------------

# - Query/Index Statistics Collector -

#track_activities = on
#track_counts = on
#track_io_timing = off
#track_functions = none			# none, pl, all
#track_activity_query_size = 1024	# (change requires restart)
#stats_temp_directory = 'pg_stat_tmp'


# - Statistics Monitoring -

#log_parser_stats = off
#log_planner_stats = off
#log_executor_stats = off
#log_statement_stats = off


#------------------------------------------------------------------------------
# AUTOVACUUM PARAMETERS
#------------------------------------------------------------------------------

#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
					# their durations, > 0 logs only
					# actions running at least this number
					# of milliseconds.
#autovacuum_max_workers = 3		# max number of autovacuum subprocesses
					# (change requires restart)
#autovacuum_naptime = 1min		# time between autovacuum runs
#autovacuum_vacuum_threshold = 50	# min number of row updates before
					# vacuum
#autovacuum_analyze_threshold = 50	# min number of row updates before
					# analyze
#autovacuum_vacuum_scale_factor = 0.2	# fraction of table size before vacuum
#autovacuum_analyze_scale_factor = 0.1	# fraction of table size before analyze
#autovacuum_freeze_max_age = 200000000	# maximum XID age before forced vacuum
					# (change requires restart)
#autovacuum_multixact_freeze_max_age = 400000000	# maximum multixact age
					# before forced vacuum
					# (change requires restart)
#autovacuum_vacuum_cost_delay = 20ms	# default vacuum cost delay for
					# autovacuum, in milliseconds;
					# -1 means use vacuum_cost_delay
#autovacuum_vacuum_cost_limit = -1	# default vacuum cost limit for
					# autovacuum, -1 means use
					# vacuum_cost_limit


#------------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#------------------------------------------------------------------------------

# - Statement Behavior -

#search_path = '"$user", public'	# schema names
#default_tablespace = ''		# a tablespace name, '' uses the default
#temp_tablespaces = ''			# a list of tablespace names, '' uses
					# only default tablespace
#check_function_bodies = on
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#default_transaction_deferrable = off
#session_replication_role = 'origin'
#statement_timeout = 0			# in milliseconds, 0 is disabled
#lock_timeout = 0			# in milliseconds, 0 is disabled
#idle_in_transaction_session_timeout = 0		# in milliseconds, 0 is disabled
#vacuum_freeze_min_age = 50000000
#vacuum_freeze_table_age = 150000000
#vacuum_multixact_freeze_min_age = 5000000
#vacuum_multixact_freeze_table_age = 150000000
#bytea_output = 'hex'			# hex, escape
#xmlbinary = 'base64'
#xmloption = 'content'
#gin_fuzzy_search_limit = 0
#gin_pending_list_limit = 4MB

# - Locale and Formatting -

#datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
#timezone = 'GMT'
#timezone_abbreviations = 'Default'     # Select the set of available time zone
					# abbreviations.  Currently, there are
					#   Default
					#   Australia (historical usage)
					#   India
					# You can create your own file in
					# share/timezonesets/.
#extra_float_digits = 0			# min -15, max 3
#client_encoding = sql_ascii		# actually, defaults to database
					# encoding

# These settings are initialized by initdb, but they can be changed.
#lc_messages = 'C'			# locale for system error message
					# strings
#lc_monetary = 'C'			# locale for monetary formatting
#lc_numeric = 'C'			# locale for number formatting
#lc_time = 'C'				# locale for time formatting

# default configuration for text search
#default_text_search_config = 'pg_catalog.simple'

# - Other Defaults -

#dynamic_library_path = '$libdir'
#local_preload_libraries = ''
#session_preload_libraries = ''


#------------------------------------------------------------------------------
# LOCK MANAGEMENT
#------------------------------------------------------------------------------

#deadlock_timeout = 1s
#max_locks_per_transaction = 64		# min 10
					# (change requires restart)
#max_pred_locks_per_transaction = 64	# min 10
					# (change requires restart)


#------------------------------------------------------------------------------
# VERSION/PLATFORM COMPATIBILITY
#------------------------------------------------------------------------------

# - Previous PostgreSQL Versions -

#array_nulls = on
#backslash_quote = safe_encoding	# on, off, or safe_encoding
#default_with_oids = off
#escape_string_warning = on
#lo_compat_privileges = off
#operator_precedence_warning = off
#quote_all_identifiers = off
#sql_inheritance = on
#standard_conforming_strings = on
#synchronize_seqscans = on

# - Other Platforms and Clients -

#transform_null_equals = off


#------------------------------------------------------------------------------
# ERROR HANDLING
#------------------------------------------------------------------------------

#exit_on_error = off			# terminate session on any error?
#restart_after_crash = on		# reinitialize after backend crash?
#data_sync_retry = off			# retry or panic on failure to fsync
					# data?
					# (change requires restart)


#------------------------------------------------------------------------------
# CONFIG FILE INCLUDES
#------------------------------------------------------------------------------

# These options allow settings to be loaded from files other than the
# default postgresql.conf.

#include_dir = ''			# include files ending in '.conf' from
					# a directory, e.g., 'conf.d'
#include_if_exists = ''			# include file only if it exists
#include = ''				# include file


#------------------------------------------------------------------------------
# CUSTOMIZED OPTIONS
#------------------------------------------------------------------------------

# Add settings for extensions here