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- name | setting | description
- ---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------
- allow_system_table_mods | off | Allows modifications of the structure of system tables.
- application_name | psql | Sets the application name to be reported in statistics and logs.
- archive_command | test -f /etc/postgresql/9.1/main/wal-e.d/ARCHIVING_OFF || envdir /etc/postgresql/9.1/resource24342_heroku_com/wal-e.d/env wal-e wal-push %p | Sets the shell command that will be called to archive a WAL file.
- archive_mode | on | Allows archiving of WAL files using archive_command.
- archive_timeout | 1min | Forces a switch to the next xlog file if a new file has not been started within N seconds.
- array_nulls | on | Enable input of NULL elements in arrays.
- authentication_timeout | 1min | Sets the maximum allowed time to complete client authentication.
- autovacuum | on | Starts the autovacuum subprocess.
- autovacuum_analyze_scale_factor | 0.1 | Number of tuple inserts, updates or deletes prior to analyze as a fraction of reltuples.
- autovacuum_analyze_threshold | 50 | Minimum number of tuple inserts, updates or deletes prior to analyze.
- autovacuum_freeze_max_age | 200000000 | Age at which to autovacuum a table to prevent transaction ID wraparound.
- autovacuum_max_workers | 3 | Sets the maximum number of simultaneously running autovacuum worker processes.
- autovacuum_naptime | 1min | Time to sleep between autovacuum runs.
- autovacuum_vacuum_cost_delay | 20ms | Vacuum cost delay in milliseconds, for autovacuum.
- autovacuum_vacuum_cost_limit | -1 | Vacuum cost amount available before napping, for autovacuum.
- autovacuum_vacuum_scale_factor | 0.2 | Number of tuple updates or deletes prior to vacuum as a fraction of reltuples.
- autovacuum_vacuum_threshold | 50 | Minimum number of tuple updates or deletes prior to vacuum.
- backslash_quote | safe_encoding | Sets whether "\'" is allowed in string literals.
- bgwriter_delay | 200ms | Background writer sleep time between rounds.
- bgwriter_lru_maxpages | 100 | Background writer maximum number of LRU pages to flush per round.
- bgwriter_lru_multiplier | 2 | Multiple of the average buffer usage to free per round.
- block_size | 8192 | Shows the size of a disk block.
- bonjour | off | Enables advertising the server via Bonjour.
- bonjour_name | | Sets the Bonjour service name.
- bytea_output | hex | Sets the output format for bytea.
- check_function_bodies | on | Check function bodies during CREATE FUNCTION.
- checkpoint_completion_target | 0.7 | Time spent flushing dirty buffers during checkpoint, as fraction of checkpoint interval.
- checkpoint_segments | 40 | Sets the maximum distance in log segments between automatic WAL checkpoints.
- checkpoint_timeout | 5min | Sets the maximum time between automatic WAL checkpoints.
- checkpoint_warning | 30s | Enables warnings if checkpoint segments are filled more frequently than this.
- client_encoding | UTF8 | Sets the client's character set encoding.
- client_min_messages | notice | Sets the message levels that are sent to the client.
- commit_delay | 0 | Sets the delay in microseconds between transaction commit and flushing WAL to disk.
- commit_siblings | 5 | Sets the minimum concurrent open transactions before performing commit_delay.
- constraint_exclusion | partition | Enables the planner to use constraints to optimize queries.
- cpu_index_tuple_cost | 0.001 | Sets the planner's estimate of the cost of processing each index entry during an index scan.
- cpu_operator_cost | 0.0005 | Sets the planner's estimate of the cost of processing each operator or function call.
- cpu_tuple_cost | 0.003 | Sets the planner's estimate of the cost of processing each tuple (row).
- cursor_tuple_fraction | 0.1 | Sets the planner's estimate of the fraction of a cursor's rows that will be retrieved.
- custom_variable_classes | extwlist | Sets the list of known custom variable classes.
- DateStyle | ISO, MDY | Sets the display format for date and time values.
- db_user_namespace | off | Enables per-database user names.
- deadlock_timeout | 1s | Sets the time to wait on a lock before checking for deadlock.
- debug_assertions | off | Turns on various assertion checks.
- debug_pretty_print | on | Indents parse and plan tree displays.
- debug_print_parse | off | Logs each query's parse tree.
- debug_print_plan | off | Logs each query's execution plan.
- debug_print_rewritten | off | Logs each query's rewritten parse tree.
- default_statistics_target | 100 | Sets the default statistics target.
- default_tablespace | | Sets the default tablespace to create tables and indexes in.
- default_text_search_config | pg_catalog.english | Sets default text search configuration.
- default_transaction_deferrable | off | Sets the default deferrable status of new transactions.
- default_transaction_isolation | read committed | Sets the transaction isolation level of each new transaction.
- default_transaction_read_only | off | Sets the default read-only status of new transactions.
- default_with_oids | off | Create new tables with OIDs by default.
- effective_cache_size | 1530000kB | Sets the planner's assumption about the size of the disk cache.
- effective_io_concurrency | 1 | Number of simultaneous requests that can be handled efficiently by the disk subsystem.
- enable_bitmapscan | on | Enables the planner's use of bitmap-scan plans.
- enable_hashagg | on | Enables the planner's use of hashed aggregation plans.
- enable_hashjoin | on | Enables the planner's use of hash join plans.
- enable_indexscan | on | Enables the planner's use of index-scan plans.
- enable_material | on | Enables the planner's use of materialization.
- enable_mergejoin | on | Enables the planner's use of merge join plans.
- enable_nestloop | on | Enables the planner's use of nested-loop join plans.
- enable_seqscan | on | Enables the planner's use of sequential-scan plans.
- enable_sort | on | Enables the planner's use of explicit sort steps.
- enable_tidscan | on | Enables the planner's use of TID scan plans.
- escape_string_warning | on | Warn about backslash escapes in ordinary string literals.
- exit_on_error | off | Terminate session on any error.
- extra_float_digits | 0 | Sets the number of digits displayed for floating-point values.
- extwlist.error | off | Error out when extension is no whitelisted
- extwlist.extensions | btree_gist,chkpass,cube,dblink,dict_int,dict_xsyn,earthdistance,fuzzystrmatch,hstore,isn,ltree,pg_trgm,pgcrypto,pgrowlocks,pgstattuple,plpgsql,unaccent,uuid-ossp | List of extensions that are whitelisted
- from_collapse_limit | 8 | Sets the FROM-list size beyond which subqueries are not collapsed.
- fsync | on | Forces synchronization of updates to disk.
- full_page_writes | on | Writes full pages to WAL when first modified after a checkpoint.
- geqo | on | Enables genetic query optimization.
- geqo_effort | 5 | GEQO: effort is used to set the default for other GEQO parameters.
- geqo_generations | 0 | GEQO: number of iterations of the algorithm.
- geqo_pool_size | 0 | GEQO: number of individuals in the population.
- geqo_seed | 0 | GEQO: seed for random path selection.
- geqo_selection_bias | 2 | GEQO: selective pressure within the population.
- geqo_threshold | 12 | Sets the threshold of FROM items beyond which GEQO is used.
- gin_fuzzy_search_limit | 0 | Sets the maximum allowed result for exact search by GIN.
- hot_standby | on | Allows connections and queries during recovery.
- hot_standby_feedback | off | Allows feedback from a hot standby to the primary that will avoid query conflicts.
- ignore_system_indexes | off | Disables reading from system indexes.
- integer_datetimes | on | Datetimes are integer based.
- IntervalStyle | postgres | Sets the display format for interval values.
- join_collapse_limit | 8 | Sets the FROM-list size beyond which JOIN constructs are not flattened.
- krb_caseins_users | off | Sets whether Kerberos and GSSAPI user names should be treated as case-insensitive.
- krb_srvname | postgres | Sets the name of the Kerberos service.
- lc_collate | en_US.UTF-8 | Shows the collation order locale.
- lc_ctype | en_US.UTF-8 | Shows the character classification and case conversion locale.
- lc_messages | en_US.UTF-8 | Sets the language in which messages are displayed.
- lc_monetary | en_US.UTF-8 | Sets the locale for formatting monetary amounts.
- lc_numeric | en_US.UTF-8 | Sets the locale for formatting numbers.
- lc_time | en_US.UTF-8 | Sets the locale for formatting date and time values.
- listen_addresses | * | Sets the host name or IP address(es) to listen to.
- lo_compat_privileges | off | Enables backward compatibility mode for privilege checks on large objects.
- local_preload_libraries | pgextwlist | Lists shared libraries to preload into each backend.
- log_autovacuum_min_duration | -1 | Sets the minimum execution time above which autovacuum actions will be logged.
- log_checkpoints | on | Logs each checkpoint.
- log_connections | off | Logs each successful connection.
- log_destination | syslog | Sets the destination for server log output.
- log_disconnections | off | Logs end of a session, including duration.
- log_duration | off | Logs the duration of each completed SQL statement.
- log_error_verbosity | default | Sets the verbosity of logged messages.
- log_executor_stats | off | Writes executor performance statistics to the server log.
- log_file_mode | 0600 | Sets the file permissions for log files.
- log_hostname | off | Logs the host name in the connection logs.
- log_line_prefix | %u [TEAL] | Controls information prefixed to each log line.
- log_lock_waits | off | Logs long lock waits.
- log_min_duration_statement | 50ms | Sets the minimum execution time above which statements will be logged.
- log_min_error_statement | error | Causes all statements generating error at or above this level to be logged.
- log_min_messages | notice | Sets the message levels that are logged.
- log_parser_stats | off | Writes parser performance statistics to the server log.
- log_planner_stats | off | Writes planner performance statistics to the server log.
- log_rotation_age | 1d | Automatic log file rotation will occur after N minutes.
- log_rotation_size | 10MB | Automatic log file rotation will occur after N kilobytes.
- log_statement | none | Sets the type of statements logged.
- log_statement_stats | off | Writes cumulative performance statistics to the server log.
- log_temp_files | -1 | Log the use of temporary files larger than this number of kilobytes.
- log_timezone | UTC | Sets the time zone to use in log messages.
- log_truncate_on_rotation | off | Truncate existing log files of same name during log rotation.
- logging_collector | on | Start a subprocess to capture stderr output and/or csvlogs into log files.
- maintenance_work_mem | 64MB | Sets the maximum memory to be used for maintenance operations.
- max_connections | 500 | Sets the maximum number of concurrent connections.
- max_files_per_process | 1000 | Sets the maximum number of simultaneously open files for each server process.
- max_function_args | 100 | Shows the maximum number of function arguments.
- max_identifier_length | 63 | Shows the maximum identifier length.
- max_index_keys | 32 | Shows the maximum number of index keys.
- max_locks_per_transaction | 64 | Sets the maximum number of locks per transaction.
- max_pred_locks_per_transaction | 64 | Sets the maximum number of predicate locks per transaction.
- max_prepared_transactions | 500 | Sets the maximum number of simultaneously prepared transactions.
- max_stack_depth | 2MB | Sets the maximum stack depth, in kilobytes.
- max_standby_archive_delay | -1 | Sets the maximum delay before canceling queries when a hot standby server is processing archived WAL data.
- max_standby_streaming_delay | -1 | Sets the maximum delay before canceling queries when a hot standby server is processing streamed WAL data.
- max_wal_senders | 10 | Sets the maximum number of simultaneously running WAL sender processes.
- password_encryption | on | Encrypt passwords.
- port | 5432 | Sets the TCP port the server listens on.
- post_auth_delay | 0 | Waits N seconds on connection startup after authentication.
- pre_auth_delay | 0 | Waits N seconds on connection startup before authentication.
- quote_all_identifiers | off | When generating SQL fragments, quote all identifiers.
- random_page_cost | 2 | Sets the planner's estimate of the cost of a nonsequentially fetched disk page.
- replication_timeout | 1min | Sets the maximum time to wait for WAL replication.
- restart_after_crash | on | Reinitialize server after backend crash.
- search_path | "$user",public | Sets the schema search order for names that are not schema-qualified.
- segment_size | 1GB | Shows the number of pages per disk file.
- seq_page_cost | 1 | Sets the planner's estimate of the cost of a sequentially fetched disk page.
- server_encoding | UTF8 | Sets the server (database) character set encoding.
- server_version | 9.1.3 | Shows the server version.
- server_version_num | 90103 | Shows the server version as an integer.
- session_replication_role | origin | Sets the session's behavior for triggers and rewrite rules.
- shared_buffers | 415MB | Sets the number of shared memory buffers used by the server.
- silent_mode | off | Runs the server silently.
- sql_inheritance | on | Causes subtables to be included by default in various commands.
- ssl | on | Enables SSL connections.
- ssl_renegotiation_limit | 512MB | Set the amount of traffic to send and receive before renegotiating the encryption keys.
- standard_conforming_strings | off | Causes '...' strings to treat backslashes literally.
- statement_timeout | 0 | Sets the maximum allowed duration of any statement.
- superuser_reserved_connections | 3 | Sets the number of connection slots reserved for superusers.
- synchronize_seqscans | on | Enable synchronized sequential scans.
- synchronous_commit | on | Sets the current transaction's synchronization level.
- synchronous_standby_names | | List of names of potential synchronous standbys.
- syslog_facility | local0 | Sets the syslog "facility" to be used when syslog enabled.
- syslog_ident | resource24342_heroku_com | Sets the program name used to identify PostgreSQL messages in syslog.
- tcp_keepalives_count | 9 | Maximum number of TCP keepalive retransmits.
- tcp_keepalives_idle | 7200 | Time between issuing TCP keepalives.
- tcp_keepalives_interval | 75 | Time between TCP keepalive retransmits.
- temp_buffers | 8MB | Sets the maximum number of temporary buffers used by each session.
- temp_tablespaces | | Sets the tablespace(s) to use for temporary tables and sort files.
- TimeZone | UTC | Sets the time zone for displaying and interpreting time stamps.
- timezone_abbreviations | Default | Selects a file of time zone abbreviations.
- trace_notify | off | Generates debugging output for LISTEN and NOTIFY.
- trace_recovery_messages | log | Enables logging of recovery-related debugging information.
- trace_sort | off | Emit information about resource usage in sorting.
- track_activities | on | Collects information about executing commands.
- track_activity_query_size | 1024 | Sets the size reserved for pg_stat_activity.current_query, in bytes.
- track_counts | on | Collects statistics on database activity.
- track_functions | none | Collects function-level statistics on database activity.
- transaction_deferrable | off | Whether to defer a read-only serializable transaction until it can be executed with no possible serialization failures.
- transaction_isolation | read committed | Sets the current transaction's isolation level.
- transaction_read_only | off | Sets the current transaction's read-only status.
- transform_null_equals | off | Treats "expr=NULL" as "expr IS NULL".
- unix_socket_group | | Sets the owning group of the Unix-domain socket.
- unix_socket_permissions | 0777 | Sets the access permissions of the Unix-domain socket.
- update_process_title | on | Updates the process title to show the active SQL command.
- vacuum_cost_delay | 0 | Vacuum cost delay in milliseconds.
- vacuum_cost_limit | 200 | Vacuum cost amount available before napping.
- vacuum_cost_page_dirty | 20 | Vacuum cost for a page dirtied by vacuum.
- vacuum_cost_page_hit | 1 | Vacuum cost for a page found in the buffer cache.
- vacuum_cost_page_miss | 10 | Vacuum cost for a page not found in the buffer cache.
- vacuum_defer_cleanup_age | 0 | Number of transactions by which VACUUM and HOT cleanup should be deferred, if any.
- vacuum_freeze_min_age | 50000000 | Minimum age at which VACUUM should freeze a table row.
- vacuum_freeze_table_age | 150000000 | Age at which VACUUM should scan whole table to freeze tuples.
- wal_block_size | 8192 | Shows the block size in the write ahead log.
- wal_buffers | 8MB | Sets the number of disk-page buffers in shared memory for WAL.
- wal_keep_segments | 127 | Sets the number of WAL files held for standby servers.
- wal_level | hot_standby | Set the level of information written to the WAL.
- wal_receiver_status_interval | 10s | Sets the maximum interval between WAL receiver status reports to the primary.
- wal_segment_size | 16MB | Shows the number of pages per write ahead log segment.
- wal_sender_delay | 1s | WAL sender sleep time between WAL replications.
- wal_sync_method | fdatasync | Selects the method used for forcing WAL updates to disk.
- wal_writer_delay | 200ms | WAL writer sleep time between WAL flushes.
- work_mem | 100MB | Sets the maximum memory to be used for query workspaces.
- xmlbinary | base64 | Sets how binary values are to be encoded in XML.
- xmloption | content | Sets whether XML data in implicit parsing and serialization operations is to be considered as documents or content fragments.
- zero_damaged_pages | off | Continues processing past damaged page headers.
- (208 rows)
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