f9f258281e
upper limit on what we will believe from sysconf(_SC_OPEN_MAX). The default value is 1000, so that under ordinary conditions it won't affect the behavior. But on platforms where the kernel promises far more than it can deliver, this can be used to prevent running out of file descriptors. See numerous past discussions, eg, pgsql-hackers around 23-Dec-2000.
187 lines
3.8 KiB
Plaintext
187 lines
3.8 KiB
Plaintext
#
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# PostgreSQL configuration file
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# -----------------------------
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#
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# This file consists of lines of the form
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#
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# name = value
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#
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# (The `=' is optional.) White space is collapsed, comments are
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# introduced by `#' anywhere on a line. The complete list of option
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# names and allowed values can be found in the PostgreSQL
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# documentation. The commented-out settings shown in this file
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# represent the default values.
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# Any option can also be given as a command line switch to the
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# postmaster, e.g., 'postmaster -c log_connections=on'. Some options
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# can be changed at run-time with the 'SET' SQL command.
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#========================================================================
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#
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# Connection Parameters
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#
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#tcpip_socket = false
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#ssl = false
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#max_connections = 32
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#port = 5432
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#hostname_lookup = false
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#show_source_port = false
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#unix_socket_directory = ''
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#unix_socket_group = ''
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#unix_socket_permissions = 0777
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#virtual_host = ''
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#krb_server_keyfile = ''
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#
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# Shared Memory Size
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#
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#shared_buffers = 64 # 2*max_connections, min 16
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#max_fsm_relations = 100 # min 10, fsm is free space map
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#max_fsm_pages = 10000 # min 1000, fsm is free space map
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#max_locks_per_transaction = 64 # min 10
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#wal_buffers = 8 # min 4
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#
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# Non-shared Memory Sizes
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#
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#sort_mem = 512 # min 32
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#vacuum_mem = 8192 # min 1024
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#
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# Write-ahead log (WAL)
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#
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#wal_files = 0 # range 0-64
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#wal_sync_method = fsync # the default varies across platforms:
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# # fsync, fdatasync, open_sync, or open_datasync
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#wal_debug = 0 # range 0-16
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#commit_delay = 0 # range 0-100000
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#commit_siblings = 5 # range 1-1000
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#checkpoint_segments = 3 # in logfile segments (16MB each), min 1
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#checkpoint_timeout = 300 # in seconds, range 30-3600
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#fsync = true
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#
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# Optimizer Parameters
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#
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#enable_seqscan = true
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#enable_indexscan = true
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#enable_tidscan = true
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#enable_sort = true
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#enable_nestloop = true
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#enable_mergejoin = true
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#enable_hashjoin = true
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#ksqo = false
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#geqo = true
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#effective_cache_size = 1000 # default in 8k pages
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#random_page_cost = 4
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#cpu_tuple_cost = 0.01
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#cpu_index_tuple_cost = 0.001
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#cpu_operator_cost = 0.0025
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#
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# GEQO Optimizer Parameters
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#
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#geqo_selection_bias = 2.0 # range 1.5-2.0
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#geqo_threshold = 11
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#geqo_pool_size = 0 # default based on #tables in query, range 128-1024
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#geqo_effort = 1
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#geqo_generations = 0
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#geqo_random_seed = -1 # auto-compute seed
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#
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# Debug display
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#
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#silent_mode = false
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#log_connections = false
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#log_timestamp = false
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#log_pid = false
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#debug_level = 0 # range 0-16
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#debug_print_query = false
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#debug_print_parse = false
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#debug_print_rewritten = false
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#debug_print_plan = false
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#debug_pretty_print = false
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#ifdef USE_ASSERT_CHECKING
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#debug_assertions = true
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#endif
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#
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# Syslog
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#
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#ifdef ENABLE_SYSLOG
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#syslog = 0 # range 0-2
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#syslog_facility = 'LOCAL0'
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#syslog_ident = 'postgres'
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#endif
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#
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# Statistics
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#
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#show_parser_stats = false
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#show_planner_stats = false
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#show_executor_stats = false
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#show_query_stats = false
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#ifdef BTREE_BUILD_STATS
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#show_btree_build_stats = false
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#endif
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#
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# Access statistics collection
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#
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#stats_start_collector = true
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#stats_reset_on_server_start = true
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#stats_command_string = false
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#stats_row_level = false
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#stats_block_level = false
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#
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# Lock Tracing
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#
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#trace_notify = false
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#ifdef LOCK_DEBUG
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#trace_locks = false
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#trace_userlocks = false
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#trace_lwlocks = false
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#debug_deadlocks = false
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#trace_lock_oidmin = 16384
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#trace_lock_table = 0
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#endif
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#
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# Misc
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#
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#dynamic_library_path = '$libdir'
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#australian_timezones = false
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#authentication_timeout = 60 # min 1, max 600
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#deadlock_timeout = 1000
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#default_transaction_isolation = 'read committed'
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#max_expr_depth = 10000 # min 10
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#max_files_per_process = 1000 # min 25
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#password_encryption = false
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#sql_inheritance = true
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#transform_null_equals = false
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