gistfile1.txt

postgres=# SELECT version();
                                                    version                                                    
---------------------------------------------------------------------------------------------------------------
 PostgreSQL 9.4.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-44), 64-bit
(1 row)

postgres=# SELECT name, current_setting(name), SOURCE
postgres-#   FROM pg_settings
postgres-#   WHERE SOURCE NOT IN ('default', 'override');
              name               |         current_setting         |       source       
---------------------------------+---------------------------------+--------------------
 application_name                | psql                            | client
 archive_command                 | cd .                            | configuration file
 archive_mode                    | on                              | configuration file
 autovacuum                      | on                              | configuration file
 autovacuum_analyze_scale_factor | 0.1                             | configuration file
 autovacuum_analyze_threshold    | 50                              | configuration file
 autovacuum_naptime              | 1min                            | configuration file
 autovacuum_vacuum_cost_delay    | 20ms                            | configuration file
 autovacuum_vacuum_cost_limit    | 200                             | configuration file
 autovacuum_vacuum_scale_factor  | 0.2                             | configuration file
 autovacuum_vacuum_threshold     | 50                              | configuration file
 checkpoint_completion_target    | 0.9                             | configuration file
 checkpoint_segments             | 128                             | configuration file
 client_encoding                 | UTF8                            | client
 effective_cache_size            | 16GB                            | configuration file
 hot_standby                     | on                              | configuration file
 lc_messages                     | C                               | configuration file
 lc_monetary                     | en_US.UTF-8                     | configuration file
 lc_numeric                      | en_US.UTF-8                     | configuration file
 lc_time                         | en_US.UTF-8                     | configuration file
 listen_addresses                | localhost,10.80.64.40           | configuration file
 log_autovacuum_min_duration     | 0                               | configuration file
 log_checkpoints                 | on                              | configuration file
 log_connections                 | on                              | configuration file
 log_disconnections              | on                              | configuration file
 log_line_prefix                 | %t [%p]: [%l-1]                 | configuration file
 log_lock_waits                  | on                              | configuration file
 log_min_duration_statement      | 1s                              | configuration file
 log_temp_files                  | 0                               | configuration file
 maintenance_work_mem            | 512MB                           | configuration file
 max_connections                 | 300                             | configuration file
 max_stack_depth                 | 8MB                             | configuration file
 max_standby_archive_delay       | 30min                           | configuration file
 max_standby_streaming_delay     | 30min                           | configuration file
 max_wal_senders                 | 1                               | configuration file
 port                            | 5432                            | configuration file
 shared_buffers                  | 8GB                             | configuration file
 shared_preload_libraries        | pg_stat_statements,repmgr_funcs | configuration file
 tcp_keepalives_count            | 9                               | configuration file
 tcp_keepalives_idle             | 1500                            | configuration file
 tcp_keepalives_interval         | 75                              | configuration file
 track_activity_query_size       | 4096                            | configuration file
 vacuum_cost_delay               | 20ms                            | configuration file
 vacuum_cost_limit               | 200                             | configuration file
 wal_buffers                     | 16MB                            | configuration file
 wal_level                       | hot_standby                     | configuration file
 work_mem                        | 10MB                            | configuration file
(47 rows)