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 add_missing_from                | off                                      | Automatically adds missing table references to FROM clauses.
 allow_system_table_mods         | off                                      | Allows modifications of the structure of system tables.
 archive_command                 | (disabled)                               | Sets the shell command that will be called to archive a WAL file.
 archive_mode                    | off                                      | Allows archiving of WAL files using archive_command.
 archive_timeout                 | 0                                        | 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                                        | Background writer multiplier on average buffers to scan per round.
 block_size                      | 8192                                     | Shows the size of a disk block.
 bonjour_name                    |                                          | Sets the Bonjour broadcast service name.
 check_function_bodies           | on                                       | Check function bodies during CREATE FUNCTION.
 checkpoint_completion_target    | 0.5                                      | Time spent flushing dirty buffers during checkpoint, as fraction of checkpoint interval.
 checkpoint_segments             | 10                                       | 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.
 config_file                     | /etc/postgresql/8.3/main/postgresql.conf | Sets the server's main configuration file.
 constraint_exclusion            | off                                      | Enables the planner to use constraints to optimize queries.
 cpu_index_tuple_cost            | 0.005                                    | Sets the planner's estimate of the cost of processing each index entry during an index scan.
 cpu_operator_cost               | 0.0025                                   | Sets the planner's estimate of the cost of processing each operator or function call.
 cpu_tuple_cost                  | 0.01                                     | Sets the planner's estimate of the cost of processing each tuple (row).
 custom_variable_classes         |                                          | Sets the list of known custom variable classes.
 data_directory                  | /var/lib/postgresql/8.3/main             | Sets the server's data directory.
 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              | off                                      | Indents parse and plan tree displays.
 debug_print_parse               | off                                      | Prints the parse tree to the server log.
 debug_print_plan                | off                                      | Prints the execution plan to server log.
 debug_print_rewritten           | off                                      | Prints the parse tree after rewriting to server log.
 default_statistics_target       | 10                                       | 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_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.
 dynamic_library_path            | $libdir                                  | Sets the path for dynamically loadable modules.
 effective_cache_size            | 2560MB                                   | Sets the planner's assumption about the size of the disk cache.
 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_mergejoin                | on                                       | Enables the planner's use of merge join plans.
 enable_nestloop                 | off                                      | 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.
 explain_pretty_print            | on                                       | Uses the indented output format for EXPLAIN VERBOSE.
 external_pid_file               | /var/run/postgresql/8.3-main.pid         | Writes the postmaster PID to the specified file.
 extra_float_digits              | 0                                        | Sets the number of digits displayed for floating-point values.
 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_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.
 hba_file                        | /etc/postgresql/8.3/main/pg_hba.conf     | Sets the server's "hba" configuration file.
 ident_file                      | /etc/postgresql/8.3/main/pg_ident.conf   | Sets the server's "ident" configuration file.
 ignore_system_indexes           | off                                      | Disables reading from system indexes.
 integer_datetimes               | on                                       | Datetimes are integer based.
 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_realm                       |                                          | Sets realm to match Kerberos and GSSAPI users against.
 krb_server_hostname             |                                          | Sets the hostname of the Kerberos server.
 krb_server_keyfile              | FILE:/etc/postgresql-common/krb5.keytab  | Sets the location of the Kerberos server key file.
 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                | 192.168.120.4,127.0.0.1                  | Sets the host name or IP address(es) to listen to.
 local_preload_libraries         |                                          | 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                 | off                                      | Logs each checkpoint.
 log_connections                 | off                                      | Logs each successful connection.
 log_destination                 | stderr                                   | Sets the destination for server log output.
 log_directory                   | pg_log                                   | Sets the destination directory for log files.
 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_filename                    | postgresql-%Y-%m-%d_%H%M%S.log           | Sets the file name pattern for log files.
 log_hostname                    | on                                       | Logs the host name in the connection logs.
 log_line_prefix                 | %t:%r:%u@%d:[%p]:                        | Controls information prefixed to each log line.
log_lock_waits                  | on                                       | Logs long lock waits.
 log_min_duration_statement      | 2s                                       | 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                    | localtime                                | 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               | off                                      | 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                 | 50                                       | 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_fsm_pages                   | 153600                                   | Sets the maximum number of disk pages for which free space is tracked.
 max_fsm_relations               | 1000                                     | Sets the maximum number of tables and indexes for which free space is tracked.
 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_prepared_transactions       | 5                                        | Sets the maximum number of simultaneously prepared transactions.
 max_stack_depth                 | 2MB                                      | Sets the maximum stack depth, in kilobytes.
 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.
 random_page_cost                | 4                                        | Sets the planner's estimate of the cost of a nonsequentially fetched disk page.
 regex_flavor                    | advanced                                 | Sets the regular expression "flavor".
 search_path                     | "$user",public                           | Sets the schema search order for names that are not schema-qualified.
 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                  | 8.3.14                                   | Shows the server version.
 server_version_num              | 80314                                    | Shows the server version as an integer.
 session_replication_role        | origin                                   | Sets the session's behavior for triggers and rewrite rules.
 shared_buffers                  | 1GB                                      | Sets the number of shared memory buffers used by the server.
 shared_preload_libraries        |                                          | Lists shared libraries to preload into server.
 silent_mode                     | off                                      | Runs the server silently.
 sql_inheritance                 | on                                       | Causes subtables to be included by default in various commands.
 ssl                             | off                                      | Enables SSL connections.
 ssl_ciphers                     | ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH        | Sets the list of allowed SSL ciphers.
 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 immediate fsync at commit.
 syslog_facility                 | LOCAL0                                   | Sets the syslog "facility" to be used when syslog enabled.
 syslog_ident                    | postgres                                 | Sets the program name used to identify PostgreSQL messages in syslog.
 tcp_keepalives_count            | 0                                        | Maximum number of TCP keepalive retransmits.
 tcp_keepalives_idle             | 0                                        | Time between issuing TCP keepalives.
 tcp_keepalives_interval         | 0                                        | Time between TCP keepalive retransmits.
 temp_buffers                    | 1024                                     | 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                        | localtime                                | 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_sort                      | off                                      | Emit information about resource usage in sorting.
 track_activities                | on                                       | Collects information about executing commands.
 track_counts                    | on                                       | Collects statistics on database activity.
 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_directory           | /var/run/postgresql                      | Sets the directory where the Unix-domain socket will be created.
 unix_socket_group               |                                          | Sets the owning group of the Unix-domain socket.
 unix_socket_permissions         | 511                                      | 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_freeze_min_age           | 100000000                                | Minimum age at which VACUUM should freeze a table row.
 wal_buffers                     | 64kB                                     | Sets the number of disk-page buffers in shared memory for WAL.
 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                        | 50MB                                     | 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.
(190 rows)