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Support configurable eventlog application names on Windows
[postgresql] / src / backend / utils / misc / postgresql.conf.sample
1 # -----------------------------
2 # PostgreSQL configuration file
3 # -----------------------------
4 #
5 # This file consists of lines of the form:
6 #
7 #   name = value
8 #
9 # (The "=" is optional.)  Whitespace may be used.  Comments are introduced with
10 # "#" anywhere on a line.  The complete list of parameter names and allowed
11 # values can be found in the PostgreSQL documentation.
12 #
13 # The commented-out settings shown in this file represent the default values.
14 # Re-commenting a setting is NOT sufficient to revert it to the default value;
15 # you need to reload the server.
16 #
17 # This file is read on server startup and when the server receives a SIGHUP
18 # signal.  If you edit the file on a running system, you have to SIGHUP the
19 # server for the changes to take effect, or use "pg_ctl reload".  Some
20 # parameters, which are marked below, require a server shutdown and restart to
21 # take effect.
22 #
23 # Any parameter can also be given as a command-line option to the server, e.g.,
24 # "postgres -c log_connections=on".  Some parameters can be changed at run time
25 # with the "SET" SQL command.
26 #
27 # Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
28 #                MB = megabytes                     s   = seconds
29 #                GB = gigabytes                     min = minutes
30 #                                                   h   = hours
31 #                                                   d   = days
32
33
34 #------------------------------------------------------------------------------
35 # FILE LOCATIONS
36 #------------------------------------------------------------------------------
37
38 # The default values of these variables are driven from the -D command-line
39 # option or PGDATA environment variable, represented here as ConfigDir.
40
41 #data_directory = 'ConfigDir'           # use data in another directory
42                                         # (change requires restart)
43 #hba_file = 'ConfigDir/pg_hba.conf'     # host-based authentication file
44                                         # (change requires restart)
45 #ident_file = 'ConfigDir/pg_ident.conf' # ident configuration file
46                                         # (change requires restart)
47
48 # If external_pid_file is not explicitly set, no extra PID file is written.
49 #external_pid_file = ''                 # write an extra PID file
50                                         # (change requires restart)
51
52
53 #------------------------------------------------------------------------------
54 # CONNECTIONS AND AUTHENTICATION
55 #------------------------------------------------------------------------------
56
57 # - Connection Settings -
58
59 #listen_addresses = 'localhost'         # what IP address(es) to listen on;
60                                         # comma-separated list of addresses;
61                                         # defaults to 'localhost'; use '*' for all
62                                         # (change requires restart)
63 #port = 5432                            # (change requires restart)
64 #max_connections = 100                  # (change requires restart)
65 # Note:  Increasing max_connections costs ~400 bytes of shared memory per
66 # connection slot, plus lock space (see max_locks_per_transaction).
67 #superuser_reserved_connections = 3     # (change requires restart)
68 #unix_socket_directory = ''             # (change requires restart)
69 #unix_socket_group = ''                 # (change requires restart)
70 #unix_socket_permissions = 0777         # begin with 0 to use octal notation
71                                         # (change requires restart)
72 #bonjour = off                          # advertise server via Bonjour
73                                         # (change requires restart)
74 #bonjour_name = ''                      # defaults to the computer name
75                                         # (change requires restart)
76
77 # - Security and Authentication -
78
79 #authentication_timeout = 1min          # 1s-600s
80 #ssl = off                              # (change requires restart)
81 #ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH'      # allowed SSL ciphers
82                                         # (change requires restart)
83 #ssl_renegotiation_limit = 512MB        # amount of data between renegotiations
84 #password_encryption = on
85 #db_user_namespace = off
86
87 # Kerberos and GSSAPI
88 #krb_server_keyfile = ''
89 #krb_srvname = 'postgres'               # (Kerberos only)
90 #krb_caseins_users = off
91
92 # - TCP Keepalives -
93 # see "man 7 tcp" for details
94
95 #tcp_keepalives_idle = 0                # TCP_KEEPIDLE, in seconds;
96                                         # 0 selects the system default
97 #tcp_keepalives_interval = 0            # TCP_KEEPINTVL, in seconds;
98                                         # 0 selects the system default
99 #tcp_keepalives_count = 0               # TCP_KEEPCNT;
100                                         # 0 selects the system default
101
102
103 #------------------------------------------------------------------------------
104 # RESOURCE USAGE (except WAL)
105 #------------------------------------------------------------------------------
106
107 # - Memory -
108
109 #shared_buffers = 32MB                  # min 128kB
110                                         # (change requires restart)
111 #temp_buffers = 8MB                     # min 800kB
112 #max_prepared_transactions = 0          # zero disables the feature
113                                         # (change requires restart)
114 # Note:  Increasing max_prepared_transactions costs ~600 bytes of shared memory
115 # per transaction slot, plus lock space (see max_locks_per_transaction).
116 # It is not advisable to set max_prepared_transactions nonzero unless you
117 # actively intend to use prepared transactions.
118 #work_mem = 1MB                         # min 64kB
119 #maintenance_work_mem = 16MB            # min 1MB
120 #max_stack_depth = 2MB                  # min 100kB
121
122 # - Disk -
123
124 #temp_file_limit = -1                   # limits per-session temp file space
125                                         # in kB, or -1 for no limit
126
127 # - Kernel Resource Usage -
128
129 #max_files_per_process = 1000           # min 25
130                                         # (change requires restart)
131 #shared_preload_libraries = ''          # (change requires restart)
132
133 # - Cost-Based Vacuum Delay -
134
135 #vacuum_cost_delay = 0ms                # 0-100 milliseconds
136 #vacuum_cost_page_hit = 1               # 0-10000 credits
137 #vacuum_cost_page_miss = 10             # 0-10000 credits
138 #vacuum_cost_page_dirty = 20            # 0-10000 credits
139 #vacuum_cost_limit = 200                # 1-10000 credits
140
141 # - Background Writer -
142
143 #bgwriter_delay = 200ms                 # 10-10000ms between rounds
144 #bgwriter_lru_maxpages = 100            # 0-1000 max buffers written/round
145 #bgwriter_lru_multiplier = 2.0          # 0-10.0 multipler on buffers scanned/round
146
147 # - Asynchronous Behavior -
148
149 #effective_io_concurrency = 1           # 1-1000. 0 disables prefetching
150
151
152 #------------------------------------------------------------------------------
153 # WRITE AHEAD LOG
154 #------------------------------------------------------------------------------
155
156 # - Settings -
157
158 #wal_level = minimal                    # minimal, archive, or hot_standby
159                                         # (change requires restart)
160 #fsync = on                             # turns forced synchronization on or off
161 #synchronous_commit = on                # synchronization level; on, off, or local
162 #wal_sync_method = fsync                # the default is the first option
163                                         # supported by the operating system:
164                                         #   open_datasync
165                                         #   fdatasync (default on Linux)
166                                         #   fsync
167                                         #   fsync_writethrough
168                                         #   open_sync
169 #full_page_writes = on                  # recover from partial page writes
170 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
171                                         # (change requires restart)
172 #wal_writer_delay = 200ms               # 1-10000 milliseconds
173
174 #commit_delay = 0                       # range 0-100000, in microseconds
175 #commit_siblings = 5                    # range 1-1000
176
177 # - Checkpoints -
178
179 #checkpoint_segments = 3                # in logfile segments, min 1, 16MB each
180 #checkpoint_timeout = 5min              # range 30s-1h
181 #checkpoint_completion_target = 0.5     # checkpoint target duration, 0.0 - 1.0
182 #checkpoint_warning = 30s               # 0 disables
183
184 # - Archiving -
185
186 #archive_mode = off             # allows archiving to be done
187                                 # (change requires restart)
188 #archive_command = ''           # command to use to archive a logfile segment
189                                 # placeholders: %p = path of file to archive
190                                 #               %f = file name only
191                                 # e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
192 #archive_timeout = 0            # force a logfile segment switch after this
193                                 # number of seconds; 0 disables
194
195
196 #------------------------------------------------------------------------------
197 # REPLICATION
198 #------------------------------------------------------------------------------
199
200 # - Sending Server(s) -
201
202 # Set these on the master and on any standby that will send replication data
203
204 #max_wal_senders = 0            # max number of walsender processes
205                                 # (change requires restart)
206 #wal_keep_segments = 0          # in logfile segments, 16MB each; 0 disables
207 #replication_timeout = 60s      # in milliseconds; 0 disables
208
209 # - Master Server -
210
211 # These settings are ignored on a standby server
212
213 #synchronous_standby_names = '' # standby servers that provide sync rep
214                                 # comma-separated list of application_name
215                                 # from standby(s); '*' = all
216 #vacuum_defer_cleanup_age = 0   # number of xacts by which cleanup is delayed
217
218 # - Standby Servers -
219
220 # These settings are ignored on a master server
221
222 #hot_standby = off                      # "on" allows queries during recovery
223                                         # (change requires restart)
224 #max_standby_archive_delay = 30s        # max delay before canceling queries
225                                         # when reading WAL from archive;
226                                         # -1 allows indefinite delay
227 #max_standby_streaming_delay = 30s      # max delay before canceling queries
228                                         # when reading streaming WAL;
229                                         # -1 allows indefinite delay
230 #wal_receiver_status_interval = 10s     # send replies at least this often
231                                         # 0 disables
232 #hot_standby_feedback = off             # send info from standby to prevent
233                                         # query conflicts
234
235
236 #------------------------------------------------------------------------------
237 # QUERY TUNING
238 #------------------------------------------------------------------------------
239
240 # - Planner Method Configuration -
241
242 #enable_bitmapscan = on
243 #enable_hashagg = on
244 #enable_hashjoin = on
245 #enable_indexscan = on
246 #enable_indexonlyscan = on
247 #enable_material = on
248 #enable_mergejoin = on
249 #enable_nestloop = on
250 #enable_seqscan = on
251 #enable_sort = on
252 #enable_tidscan = on
253
254 # - Planner Cost Constants -
255
256 #seq_page_cost = 1.0                    # measured on an arbitrary scale
257 #random_page_cost = 4.0                 # same scale as above
258 #cpu_tuple_cost = 0.01                  # same scale as above
259 #cpu_index_tuple_cost = 0.005           # same scale as above
260 #cpu_operator_cost = 0.0025             # same scale as above
261 #effective_cache_size = 128MB
262
263 # - Genetic Query Optimizer -
264
265 #geqo = on
266 #geqo_threshold = 12
267 #geqo_effort = 5                        # range 1-10
268 #geqo_pool_size = 0                     # selects default based on effort
269 #geqo_generations = 0                   # selects default based on effort
270 #geqo_selection_bias = 2.0              # range 1.5-2.0
271 #geqo_seed = 0.0                        # range 0.0-1.0
272
273 # - Other Planner Options -
274
275 #default_statistics_target = 100        # range 1-10000
276 #constraint_exclusion = partition       # on, off, or partition
277 #cursor_tuple_fraction = 0.1            # range 0.0-1.0
278 #from_collapse_limit = 8
279 #join_collapse_limit = 8                # 1 disables collapsing of explicit
280                                         # JOIN clauses
281
282
283 #------------------------------------------------------------------------------
284 # ERROR REPORTING AND LOGGING
285 #------------------------------------------------------------------------------
286
287 # - Where to Log -
288
289 #log_destination = 'stderr'             # Valid values are combinations of
290                                         # stderr, csvlog, syslog, and eventlog,
291                                         # depending on platform.  csvlog
292                                         # requires logging_collector to be on.
293
294 # This is used when logging to stderr:
295 #logging_collector = off                # Enable capturing of stderr and csvlog
296                                         # into log files. Required to be on for
297                                         # csvlogs.
298                                         # (change requires restart)
299
300 # These are only used if logging_collector is on:
301 #log_directory = 'pg_log'               # directory where log files are written,
302                                         # can be absolute or relative to PGDATA
303 #log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'        # log file name pattern,
304                                         # can include strftime() escapes
305 #log_file_mode = 0600                   # creation mode for log files,
306                                         # begin with 0 to use octal notation
307 #log_truncate_on_rotation = off         # If on, an existing log file with the
308                                         # same name as the new log file will be
309                                         # truncated rather than appended to.
310                                         # But such truncation only occurs on
311                                         # time-driven rotation, not on restarts
312                                         # or size-driven rotation.  Default is
313                                         # off, meaning append to existing files
314                                         # in all cases.
315 #log_rotation_age = 1d                  # Automatic rotation of logfiles will
316                                         # happen after that time.  0 disables.
317 #log_rotation_size = 10MB               # Automatic rotation of logfiles will
318                                         # happen after that much log output.
319                                         # 0 disables.
320
321 # These are relevant when logging to syslog:
322 #syslog_facility = 'LOCAL0'
323 #syslog_ident = 'postgres'
324
325 # This is only relevant when logging to eventlog (win32):
326 #event_source = 'PostgreSQL'
327
328 # - When to Log -
329
330 #client_min_messages = notice           # values in order of decreasing detail:
331                                         #   debug5
332                                         #   debug4
333                                         #   debug3
334                                         #   debug2
335                                         #   debug1
336                                         #   log
337                                         #   notice
338                                         #   warning
339                                         #   error
340
341 #log_min_messages = warning             # values in order of decreasing detail:
342                                         #   debug5
343                                         #   debug4
344                                         #   debug3
345                                         #   debug2
346                                         #   debug1
347                                         #   info
348                                         #   notice
349                                         #   warning
350                                         #   error
351                                         #   log
352                                         #   fatal
353                                         #   panic
354
355 #log_min_error_statement = error        # values in order of decreasing detail:
356                                         #   debug5
357                                         #   debug4
358                                         #   debug3
359                                         #   debug2
360                                         #   debug1
361                                         #   info
362                                         #   notice
363                                         #   warning
364                                         #   error
365                                         #   log
366                                         #   fatal
367                                         #   panic (effectively off)
368
369 #log_min_duration_statement = -1        # -1 is disabled, 0 logs all statements
370                                         # and their durations, > 0 logs only
371                                         # statements running at least this number
372                                         # of milliseconds
373
374
375 # - What to Log -
376
377 #debug_print_parse = off
378 #debug_print_rewritten = off
379 #debug_print_plan = off
380 #debug_pretty_print = on
381 #log_checkpoints = off
382 #log_connections = off
383 #log_disconnections = off
384 #log_duration = off
385 #log_error_verbosity = default          # terse, default, or verbose messages
386 #log_hostname = off
387 #log_line_prefix = ''                   # special values:
388                                         #   %a = application name
389                                         #   %u = user name
390                                         #   %d = database name
391                                         #   %r = remote host and port
392                                         #   %h = remote host
393                                         #   %p = process ID
394                                         #   %t = timestamp without milliseconds
395                                         #   %m = timestamp with milliseconds
396                                         #   %i = command tag
397                                         #   %e = SQL state
398                                         #   %c = session ID
399                                         #   %l = session line number
400                                         #   %s = session start timestamp
401                                         #   %v = virtual transaction ID
402                                         #   %x = transaction ID (0 if none)
403                                         #   %q = stop here in non-session
404                                         #        processes
405                                         #   %% = '%'
406                                         # e.g. '<%u%%%d> '
407 #log_lock_waits = off                   # log lock waits >= deadlock_timeout
408 #log_statement = 'none'                 # none, ddl, mod, all
409 #log_temp_files = -1                    # log temporary files equal or larger
410                                         # than the specified size in kilobytes;
411                                         # -1 disables, 0 logs all temp files
412 #log_timezone = 'GMT'
413
414
415 #------------------------------------------------------------------------------
416 # RUNTIME STATISTICS
417 #------------------------------------------------------------------------------
418
419 # - Query/Index Statistics Collector -
420
421 #track_activities = on
422 #track_counts = on
423 #track_functions = none                 # none, pl, all
424 #track_activity_query_size = 1024       # (change requires restart)
425 #update_process_title = on
426 #stats_temp_directory = 'pg_stat_tmp'
427
428
429 # - Statistics Monitoring -
430
431 #log_parser_stats = off
432 #log_planner_stats = off
433 #log_executor_stats = off
434 #log_statement_stats = off
435
436
437 #------------------------------------------------------------------------------
438 # AUTOVACUUM PARAMETERS
439 #------------------------------------------------------------------------------
440
441 #autovacuum = on                        # Enable autovacuum subprocess?  'on'
442                                         # requires track_counts to also be on.
443 #log_autovacuum_min_duration = -1       # -1 disables, 0 logs all actions and
444                                         # their durations, > 0 logs only
445                                         # actions running at least this number
446                                         # of milliseconds.
447 #autovacuum_max_workers = 3             # max number of autovacuum subprocesses
448                                         # (change requires restart)
449 #autovacuum_naptime = 1min              # time between autovacuum runs
450 #autovacuum_vacuum_threshold = 50       # min number of row updates before
451                                         # vacuum
452 #autovacuum_analyze_threshold = 50      # min number of row updates before
453                                         # analyze
454 #autovacuum_vacuum_scale_factor = 0.2   # fraction of table size before vacuum
455 #autovacuum_analyze_scale_factor = 0.1  # fraction of table size before analyze
456 #autovacuum_freeze_max_age = 200000000  # maximum XID age before forced vacuum
457                                         # (change requires restart)
458 #autovacuum_vacuum_cost_delay = 20ms    # default vacuum cost delay for
459                                         # autovacuum, in milliseconds;
460                                         # -1 means use vacuum_cost_delay
461 #autovacuum_vacuum_cost_limit = -1      # default vacuum cost limit for
462                                         # autovacuum, -1 means use
463                                         # vacuum_cost_limit
464
465
466 #------------------------------------------------------------------------------
467 # CLIENT CONNECTION DEFAULTS
468 #------------------------------------------------------------------------------
469
470 # - Statement Behavior -
471
472 #search_path = '"$user",public'         # schema names
473 #default_tablespace = ''                # a tablespace name, '' uses the default
474 #temp_tablespaces = ''                  # a list of tablespace names, '' uses
475                                         # only default tablespace
476 #check_function_bodies = on
477 #default_transaction_isolation = 'read committed'
478 #default_transaction_read_only = off
479 #default_transaction_deferrable = off
480 #session_replication_role = 'origin'
481 #statement_timeout = 0                  # in milliseconds, 0 is disabled
482 #vacuum_freeze_min_age = 50000000
483 #vacuum_freeze_table_age = 150000000
484 #bytea_output = 'hex'                   # hex, escape
485 #xmlbinary = 'base64'
486 #xmloption = 'content'
487
488 # - Locale and Formatting -
489
490 #datestyle = 'iso, mdy'
491 #intervalstyle = 'postgres'
492 #timezone = 'GMT'
493 #timezone_abbreviations = 'Default'     # Select the set of available time zone
494                                         # abbreviations.  Currently, there are
495                                         #   Default
496                                         #   Australia
497                                         #   India
498                                         # You can create your own file in
499                                         # share/timezonesets/.
500 #extra_float_digits = 0                 # min -15, max 3
501 #client_encoding = sql_ascii            # actually, defaults to database
502                                         # encoding
503
504 # These settings are initialized by initdb, but they can be changed.
505 #lc_messages = 'C'                      # locale for system error message
506                                         # strings
507 #lc_monetary = 'C'                      # locale for monetary formatting
508 #lc_numeric = 'C'                       # locale for number formatting
509 #lc_time = 'C'                          # locale for time formatting
510
511 # default configuration for text search
512 #default_text_search_config = 'pg_catalog.simple'
513
514 # - Other Defaults -
515
516 #dynamic_library_path = '$libdir'
517 #local_preload_libraries = ''
518
519
520 #------------------------------------------------------------------------------
521 # LOCK MANAGEMENT
522 #------------------------------------------------------------------------------
523
524 #deadlock_timeout = 1s
525 #max_locks_per_transaction = 64         # min 10
526                                         # (change requires restart)
527 # Note:  Each lock table slot uses ~270 bytes of shared memory, and there are
528 # max_locks_per_transaction * (max_connections + max_prepared_transactions)
529 # lock table slots.
530 #max_pred_locks_per_transaction = 64    # min 10
531                                         # (change requires restart)
532
533 #------------------------------------------------------------------------------
534 # VERSION/PLATFORM COMPATIBILITY
535 #------------------------------------------------------------------------------
536
537 # - Previous PostgreSQL Versions -
538
539 #array_nulls = on
540 #backslash_quote = safe_encoding        # on, off, or safe_encoding
541 #default_with_oids = off
542 #escape_string_warning = on
543 #lo_compat_privileges = off
544 #quote_all_identifiers = off
545 #sql_inheritance = on
546 #standard_conforming_strings = on
547 #synchronize_seqscans = on
548
549 # - Other Platforms and Clients -
550
551 #transform_null_equals = off
552
553
554 #------------------------------------------------------------------------------
555 # ERROR HANDLING
556 #------------------------------------------------------------------------------
557
558 #exit_on_error = off                            # terminate session on any error?
559 #restart_after_crash = on                       # reinitialize after backend crash?
560
561
562 #------------------------------------------------------------------------------
563 # CUSTOMIZED OPTIONS
564 #------------------------------------------------------------------------------
565
566 # Add settings for extensions here