1 # -----------------------------
2 # PostgreSQL configuration file
3 # -----------------------------
5 # This file consists of lines of the form:
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.
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.
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
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.
27 # Memory units: kB = kilobytes Time units: ms = milliseconds
28 # MB = megabytes s = seconds
29 # GB = gigabytes min = minutes
34 #------------------------------------------------------------------------------
36 #------------------------------------------------------------------------------
38 # The default values of these variables are driven from the -D command-line
39 # option or PGDATA environment variable, represented here as ConfigDir.
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)
48 # If external_pid_file is not explicitly set, no extra PID file is written.
49 #external_pid_file = '(none)' # write an extra PID file
50 # (change requires restart)
53 #------------------------------------------------------------------------------
54 # CONNECTIONS AND AUTHENTICATION
55 #------------------------------------------------------------------------------
57 # - Connection Settings -
59 #listen_addresses = 'localhost' # what IP address(es) to listen on;
60 # comma-separated list of addresses;
61 # defaults to 'localhost', '*' = 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)
77 # - Security and Authentication -
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 #password_encryption = on
84 #db_user_namespace = off
87 #krb_server_keyfile = ''
88 #krb_srvname = 'postgres' # (Kerberos only)
89 #krb_caseins_users = off
92 # see "man 7 tcp" for details
94 #tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
95 # 0 selects the system default
96 #tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
97 # 0 selects the system default
98 #tcp_keepalives_count = 0 # TCP_KEEPCNT;
99 # 0 selects the system default
102 #------------------------------------------------------------------------------
103 # RESOURCE USAGE (except WAL)
104 #------------------------------------------------------------------------------
108 #shared_buffers = 32MB # min 128kB
109 # (change requires restart)
110 #temp_buffers = 8MB # min 800kB
111 #max_prepared_transactions = 0 # zero disables the feature
112 # (change requires restart)
113 # Note: Increasing max_prepared_transactions costs ~600 bytes of shared memory
114 # per transaction slot, plus lock space (see max_locks_per_transaction).
115 # It is not advisable to set max_prepared_transactions nonzero unless you
116 # actively intend to use prepared transactions.
117 #work_mem = 1MB # min 64kB
118 #maintenance_work_mem = 16MB # min 1MB
119 #max_stack_depth = 2MB # min 100kB
121 # - Kernel Resource Usage -
123 #max_files_per_process = 1000 # min 25
124 # (change requires restart)
125 #shared_preload_libraries = '' # (change requires restart)
127 # - Cost-Based Vacuum Delay -
129 #vacuum_cost_delay = 0ms # 0-100 milliseconds
130 #vacuum_cost_page_hit = 1 # 0-10000 credits
131 #vacuum_cost_page_miss = 10 # 0-10000 credits
132 #vacuum_cost_page_dirty = 20 # 0-10000 credits
133 #vacuum_cost_limit = 200 # 1-10000 credits
135 # - Background Writer -
137 #bgwriter_delay = 200ms # 10-10000ms between rounds
138 #bgwriter_lru_maxpages = 100 # 0-1000 max buffers written/round
139 #bgwriter_lru_multiplier = 2.0 # 0-10.0 multipler on buffers scanned/round
141 # - Asynchronous Behavior -
143 #effective_io_concurrency = 1 # 1-1000. 0 disables prefetching
146 #------------------------------------------------------------------------------
148 #------------------------------------------------------------------------------
152 #fsync = on # turns forced synchronization on or off
153 #synchronous_commit = on # immediate fsync at commit
154 #wal_sync_method = fsync # the default is the first option
155 # supported by the operating system:
161 #full_page_writes = on # recover from partial page writes
162 #wal_buffers = 64kB # min 32kB
163 # (change requires restart)
164 #wal_writer_delay = 200ms # 1-10000 milliseconds
166 #commit_delay = 0 # range 0-100000, in microseconds
167 #commit_siblings = 5 # range 1-1000
171 #checkpoint_segments = 3 # in logfile segments, min 1, 16MB each
172 #checkpoint_timeout = 5min # range 30s-1h
173 #checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 - 1.0
174 #checkpoint_warning = 30s # 0 disables
178 #archive_mode = off # allows archiving to be done
179 # (change requires restart)
180 #archive_command = '' # command to use to archive a logfile segment
181 #archive_timeout = 0 # force a logfile segment switch after this
182 # number of seconds; 0 disables
184 #recovery_connections = on # allows connections during recovery
185 #max_standby_delay = 30 # max acceptable standby lag (s) to help queries
186 # complete without conflict; -1 disables
188 #------------------------------------------------------------------------------
190 #------------------------------------------------------------------------------
192 # - Planner Method Configuration -
194 #enable_bitmapscan = on
196 #enable_hashjoin = on
197 #enable_indexscan = on
198 #enable_mergejoin = on
199 #enable_nestloop = on
204 # - Planner Cost Constants -
206 #seq_page_cost = 1.0 # measured on an arbitrary scale
207 #random_page_cost = 4.0 # same scale as above
208 #cpu_tuple_cost = 0.01 # same scale as above
209 #cpu_index_tuple_cost = 0.005 # same scale as above
210 #cpu_operator_cost = 0.0025 # same scale as above
211 #effective_cache_size = 128MB
213 # - Genetic Query Optimizer -
217 #geqo_effort = 5 # range 1-10
218 #geqo_pool_size = 0 # selects default based on effort
219 #geqo_generations = 0 # selects default based on effort
220 #geqo_selection_bias = 2.0 # range 1.5-2.0
221 #geqo_seed = 0.0 # range 0.0-1.0
223 # - Other Planner Options -
225 #default_statistics_target = 100 # range 1-10000
226 #constraint_exclusion = partition # on, off, or partition
227 #cursor_tuple_fraction = 0.1 # range 0.0-1.0
228 #from_collapse_limit = 8
229 #join_collapse_limit = 8 # 1 disables collapsing of explicit
233 #------------------------------------------------------------------------------
234 # ERROR REPORTING AND LOGGING
235 #------------------------------------------------------------------------------
239 #log_destination = 'stderr' # Valid values are combinations of
240 # stderr, csvlog, syslog and eventlog,
241 # depending on platform. csvlog
242 # requires logging_collector to be on.
244 # This is used when logging to stderr:
245 #logging_collector = off # Enable capturing of stderr and csvlog
246 # into log files. Required to be on for
248 # (change requires restart)
250 # These are only used if logging_collector is on:
251 #log_directory = 'pg_log' # directory where log files are written,
252 # can be absolute or relative to PGDATA
253 #log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
254 # can include strftime() escapes
255 #log_truncate_on_rotation = off # If on, an existing log file of the
256 # same name as the new log file will be
257 # truncated rather than appended to.
258 # But such truncation only occurs on
259 # time-driven rotation, not on restarts
260 # or size-driven rotation. Default is
261 # off, meaning append to existing files
263 #log_rotation_age = 1d # Automatic rotation of logfiles will
264 # happen after that time. 0 disables.
265 #log_rotation_size = 10MB # Automatic rotation of logfiles will
266 # happen after that much log output.
269 # These are relevant when logging to syslog:
270 #syslog_facility = 'LOCAL0'
271 #syslog_ident = 'postgres'
273 #silent_mode = off # Run server silently.
274 # DO NOT USE without syslog or
276 # (change requires restart)
281 #client_min_messages = notice # values in order of decreasing detail:
292 #log_min_messages = warning # values in order of decreasing detail:
306 #log_error_verbosity = default # terse, default, or verbose messages
308 #log_min_error_statement = error # values in order of decreasing detail:
320 # panic (effectively off)
322 #log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
323 # and their durations, > 0 logs only
324 # statements running at least this number
330 #debug_print_parse = off
331 #debug_print_rewritten = off
332 #debug_print_plan = off
333 #debug_pretty_print = on
334 #log_checkpoints = off
335 #log_connections = off
336 #log_disconnections = off
339 #log_line_prefix = '' # special values:
340 # %a = application name
343 # %r = remote host and port
346 # %t = timestamp without milliseconds
347 # %m = timestamp with milliseconds
351 # %l = session line number
352 # %s = session start timestamp
353 # %v = virtual transaction ID
354 # %x = transaction ID (0 if none)
355 # %q = stop here in non-session
359 #log_lock_waits = off # log lock waits >= deadlock_timeout
360 #log_statement = 'none' # none, ddl, mod, all
361 #log_temp_files = -1 # log temporary files equal or larger
362 # than the specified size in kilobytes;
363 # -1 disables, 0 logs all temp files
364 #log_timezone = unknown # actually, defaults to TZ environment
368 #------------------------------------------------------------------------------
370 #------------------------------------------------------------------------------
372 # - Query/Index Statistics Collector -
374 #track_activities = on
376 #track_functions = none # none, pl, all
377 #track_activity_query_size = 1024
378 #update_process_title = on
379 #stats_temp_directory = 'pg_stat_tmp'
382 # - Statistics Monitoring -
384 #log_parser_stats = off
385 #log_planner_stats = off
386 #log_executor_stats = off
387 #log_statement_stats = off
390 #------------------------------------------------------------------------------
391 # AUTOVACUUM PARAMETERS
392 #------------------------------------------------------------------------------
394 #autovacuum = on # Enable autovacuum subprocess? 'on'
395 # requires track_counts to also be on.
396 #log_autovacuum_min_duration = -1 # -1 disables, 0 logs all actions and
397 # their durations, > 0 logs only
398 # actions running at least this number
400 #autovacuum_max_workers = 3 # max number of autovacuum subprocesses
401 #autovacuum_naptime = 1min # time between autovacuum runs
402 #autovacuum_vacuum_threshold = 50 # min number of row updates before
404 #autovacuum_analyze_threshold = 50 # min number of row updates before
406 #autovacuum_vacuum_scale_factor = 0.2 # fraction of table size before vacuum
407 #autovacuum_analyze_scale_factor = 0.1 # fraction of table size before analyze
408 #autovacuum_freeze_max_age = 200000000 # maximum XID age before forced vacuum
409 # (change requires restart)
410 #autovacuum_vacuum_cost_delay = 20ms # default vacuum cost delay for
411 # autovacuum, in milliseconds;
412 # -1 means use vacuum_cost_delay
413 #autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
414 # autovacuum, -1 means use
418 #------------------------------------------------------------------------------
419 # CLIENT CONNECTION DEFAULTS
420 #------------------------------------------------------------------------------
422 # - Statement Behavior -
424 #search_path = '"$user",public' # schema names
425 #default_tablespace = '' # a tablespace name, '' uses the default
426 #temp_tablespaces = '' # a list of tablespace names, '' uses
427 # only default tablespace
428 #check_function_bodies = on
429 #default_do_language = 'plpgsql'
430 #default_transaction_isolation = 'read committed'
431 #default_transaction_read_only = off
432 #session_replication_role = 'origin'
433 #statement_timeout = 0 # in milliseconds, 0 is disabled
434 #vacuum_freeze_min_age = 50000000
435 #vacuum_freeze_table_age = 150000000
436 #bytea_output = 'hex' # hex, escape
437 #xmlbinary = 'base64'
438 #xmloption = 'content'
440 # - Locale and Formatting -
442 #datestyle = 'iso, mdy'
443 #intervalstyle = 'postgres'
444 #timezone = unknown # actually, defaults to TZ environment
446 #timezone_abbreviations = 'Default' # Select the set of available time zone
447 # abbreviations. Currently, there are
451 # You can create your own file in
452 # share/timezonesets/.
453 #extra_float_digits = 0 # min -15, max 3
454 #client_encoding = sql_ascii # actually, defaults to database
457 # These settings are initialized by initdb, but they can be changed.
458 #lc_messages = 'C' # locale for system error message
460 #lc_monetary = 'C' # locale for monetary formatting
461 #lc_numeric = 'C' # locale for number formatting
462 #lc_time = 'C' # locale for time formatting
464 # default configuration for text search
465 #default_text_search_config = 'pg_catalog.simple'
469 #dynamic_library_path = '$libdir'
470 #local_preload_libraries = ''
473 #------------------------------------------------------------------------------
475 #------------------------------------------------------------------------------
477 #deadlock_timeout = 1s
478 #max_locks_per_transaction = 64 # min 10
479 # (change requires restart)
480 # Note: Each lock table slot uses ~270 bytes of shared memory, and there are
481 # max_locks_per_transaction * (max_connections + max_prepared_transactions)
485 #------------------------------------------------------------------------------
486 # VERSION/PLATFORM COMPATIBILITY
487 #------------------------------------------------------------------------------
489 # - Previous PostgreSQL Versions -
492 #backslash_quote = safe_encoding # on, off, or safe_encoding
493 #default_with_oids = off
494 #escape_string_warning = on
495 #lo_compat_privileges = off
496 #sql_inheritance = on
497 #standard_conforming_strings = off
498 #synchronize_seqscans = on
500 # - Other Platforms and Clients -
502 #transform_null_equals = off
505 #------------------------------------------------------------------------------
507 #------------------------------------------------------------------------------
509 #custom_variable_classes = '' # list of custom variable class names
OSDN Git Service
