# # 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 # #CONNECTIONS AND AUTHENTICATION #---------------------------------- #Connection Settings #tcpip_socket = false #max_connections = 32 # note: increasing max_connections also costs about 500 bytes each, # in addition to costs from shared_buffers and max_locks_per_transaction. #superuser_reserved_connections = 2 #port = 5432 #unix_socket_directory = '' #unix_socket_group = '' #unix_socket_permissions = 0777 # octal #Security & Authentication #authentication_timeout = 60 # 1-600, in seconds #ssl = false #krb_server_keyfile = '' #virtual_host = '' #db_user_namespace = false #RESOURCE USAGE (except WAL) #--------------------------------- #Memory #shared_buffers = 64 # min 16, at least max_connections*2, 8KB each #sort_mem = 1024 # min 64, size in KB #vacuum_mem = 8192 # min 1024, size in KB #Free Space Map #max_fsm_pages = 20000 # min max_fsm_relations*16, 6 bytes each #max_fsm_relations = 1000 # min 100, ~50 bytes each #Disk Resource Usage #max_files_per_process = 1000 # min 25 #preload_libraries = '' #WRITE AHEAD LOG #--------------------------------- #Settings #fsync = true # turns WAL on or off #wal_sync_method = fsync # the default varies across platforms: # # fsync, fdatasync, open_sync, or open_datasync #wal_buffers = 8 # min 4, 8KB each #Checkpointing #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 #QUERY TUNING #-------------------------------- #Planner Options #enable_hashjoin = true #enable_hashagg = true #enable_indexscan = true #enable_mergejoin = true #enable_nestloop = true #enable_seqscan = true #enable_sort = true #enable_tidscan = true #Planner Cost Constants #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) #Genetic Estimate Query Optimizer #geqo = true #geqo_threshold = 11 #geqo_effort = 1 #geqo_generations = 0 #geqo_pool_size = 0 # default based on tables in statement, # range 128-1024 #geqo_random_seed = -1 # auto-compute seed #geqo_selection_bias = 2.0 # range 1.5-2.0 #Query/Index Statistics Collector #stats_start_collector = true #stats_command_string = false #stats_row_level = false #stats_block_level = false #stats_reset_on_server_start = true #default_statistics_target = 10 # range 1-1000 #Other Query Options #explain_pretty_print = true #from_collapse_limit = 8 #join_collapse_limit = 8 # 1 disables collapsing of explicit JOINs #max_expr_depth = 10000 # min 10 #LOGGING AND DEBUGGING #------------------------------------ #Syslog #syslog = 0 # range 0-2 #syslog_facility = 'LOCAL0' #syslog_ident = 'postgres' #When to Log #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 #log_min_error_statement = panic # Values in order of increasing severity: # debug5, debug4, debug3, debug2, debug1, # info, notice, warning, error, panic(off) #log_min_duration_statement = 0 # Log all statements whose # execution time exceeds the value, in # milliseconds. Zero disables. #silent_mode = false #DO NOT USE without Syslog! #What to Log #debug_print_parse = false #debug_print_rewritten = false #debug_print_plan = false #debug_pretty_print = false #log_connections = false #log_duration = false #log_pid = false #log_statement = false #log_timestamp = false #log_hostname = false #log_source_port = false #Statistics Logging #log_parser_stats = false #log_planner_stats = false #log_executor_stats = false #log_statement_stats = false #CLIENT CONNECTION DEFAULTS #------------------------------------- #Statement Behavior #search_path = '$user,public' # schema names #default_transaction_isolation = 'read committed' #default_transaction_read_only = false #statement_timeout = 0 # 0 is disabled, in milliseconds #Locale and Formatting #datestyle = 'iso, us' #timezone = unknown # actually, defaults to TZ environment setting #australian_timezones = false #LC VARIABLES GO HERE! #extra_float_digits = 0 # min -15, max 2 #client_encoding = sql_ascii # actually, defaults to database encoding #Other Defaults #password_encryption = true #dynamic_library_path = '$libdir' #LOCK MANAGEMENT #----------------------------------------- #deadlock_timeout = 1000 # in milliseconds #max_locks_per_transaction = 64 # min 10, ~260*max_connections bytes each #VERSION/PLATFORM COMPATIBILITY #----------------------------------------- #Previous Postgres Versions #add_missing_from = true #regex_flavor = advanced # advanced, extended, or basic #sql_inheritance = true #Compatibility with Platforms & Clients #transform_null_equals = false