name                 |  setting   |       source       |                                        short_desc                                         
-------------------------------------+------------+--------------------+-------------------------------------------------------------------------------------------
 autovacuum                          | on         | configuration file | Starts the autovacuum subprocess.
 autovacuum_analyze_scale_factor     | 0.05       | configuration file | Number of tuple inserts, updates, or deletes prior to analyze as a fraction of reltuples.
 autovacuum_analyze_threshold        | 100        | configuration file | Minimum number of tuple inserts, updates, or deletes prior to analyze.
 autovacuum_freeze_max_age           | 1000000000 | configuration file | Age at which to autovacuum a table to prevent transaction ID wraparound.
 autovacuum_max_workers              | 10         | configuration file | Sets the maximum number of simultaneously running autovacuum worker processes.
 autovacuum_multixact_freeze_max_age | 1200000000 | configuration file | Multixact age at which to autovacuum a table to prevent multixact wraparound.
 autovacuum_naptime                  | 60         | default            | Time to sleep between autovacuum runs.
 autovacuum_vacuum_cost_delay        | 5          | configuration file | Vacuum cost delay in milliseconds, for autovacuum.
 autovacuum_vacuum_cost_limit        | -1         | default            | Vacuum cost amount available before napping, for autovacuum.
 autovacuum_vacuum_scale_factor      | 0.02       | configuration file | Number of tuple updates or deletes prior to vacuum as a fraction of reltuples.
 autovacuum_vacuum_threshold         | 1000       | configuration file | Minimum number of tuple updates or deletes prior to vacuum.
 autovacuum_work_mem                 | -1         | default            | Sets the maximum memory to be used by each autovacuum worker process.
 log_autovacuum_min_duration         | 30000      | configuration file | Sets the minimum execution time above which autovacuum actions will be logged.
(13 rows)