| PostgreSQL 9.1.14 Documentation | ||||
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For convenience there are also single letter command-line option switches available for some parameters. They are described in Table 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 | 
|---|---|
| -A x | debug_assertions = x | 
| -B x | shared_buffers = x | 
| -d x | log_min_messages = DEBUGx | 
| -e | datestyle = euro | 
| -fb, -fh, -fi, -fm, -fn, -fs, -ft | enable_bitmapscan = off, enable_hashjoin = off, enable_indexscan = off, enable_mergejoin = off, enable_nestloop = off, enable_seqscan = off, enable_tidscan = off | 
| -F | fsync = off | 
| -h x | listen_addresses = x | 
| -i | listen_addresses = '*' | 
| -k x | unix_socket_directory = x | 
| -l | ssl = on | 
| -N x | max_connections = x | 
| -O | allow_system_table_mods = on | 
| -p x | port = x | 
| -P | ignore_system_indexes = on | 
| -s | log_statement_stats = on | 
| -S x | work_mem = x | 
| -tpa, -tpl, -te | log_parser_stats = on, log_planner_stats = on, log_executor_stats = on | 
| -W x | post_auth_delay = x |