-D daemonize: Detach from tty and run in background.
-s sleep base value: see "Sleeping" below.
-S sleep scaling factor: see "Sleeping" below.
--v vacuum base threshold: see Vacuum and Analyze.
--V vacuum scaling factor: see Vacuum and Analyze.
--a analyze base threshold: see Vacuum and Analyze.
--A analyze scaling factor: see Vacuum and Analyze.
+-v vacuum base threshold: see "Vacuum and Analyze" below.
+-V vacuum scaling factor: see "Vacuum and Analyze" below.
+-a analyze base threshold: see "Vacuum and Analyze" below.
+-A analyze scaling factor: see "Vacuum and Analyze" below.
-L log file: Name of file to which output is submitted, otherwise STDERR
-U username: Username pg_autovacuum will use to connect with, if not
specified the current username is used.
-v 1000
-V 2
-a 500 (half of -v if not specified)
--A 1 (half of -v if not specified)
+-A 1 (half of -V if not specified)
-s 300 (5 minutes)
-S 2