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18.18. Short Options
For convenience there are also single letter command-line option switches available for some parameters. They are described inTable 18-2. Some of these options exist for historical reasons, and their presence as a single-letter option does not necessarily indicate an endorsement to use the option heavily.
Table 18-2. Short Option Key
| Short Option | Equivalent |
|---|---|
| -Ax | debug_assertions =x |
| -Bx | shared_buffers =x |
| -dx | log_min_messages = DEBUGx |
| -e | datestyle = euro |
| -fb,-fh,-fi,-fm,-fn,-fo,-fs,-ft | enable_bitmapscan = off,enable_hashjoin = off,enable_indexscan = off,enable_mergejoin = off,enable_nestloop = off,enable_indexonlyscan = off,enable_seqscan = off,enable_tidscan = off |
| -F | fsync = off |
| -hx | listen_addresses =x |
| -i | listen_addresses = '*' |
| -kx | unix_socket_directories =x |
| -l | ssl = on |
| -Nx | max_connections =x |
| -O | allow_system_table_mods = on |
| -px | port =x |
| -P | ignore_system_indexes = on |
| -s | log_statement_stats = on |
| -Sx | work_mem =x |
| -tpa,-tpl,-te | log_parser_stats = on,log_planner_stats = on,log_executor_stats = on |
| -Wx | post_auth_delay =x |