For convenience there are also single letter command-line option switches available for some parameters. They are described in Table 19.3. 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 19.3. Short Option Key
| Short Option |
Equivalent |
+-B +`+x+`
|
+shared_buffers = +`+x+`
|
+-d +`+x+`
|
+log_min_messages = DEBUG+`+x+`
|
-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
|
+-h +`+x+`
|
+listen_addresses = +`+x+`
|
-i
|
listen_addresses = '*'
|
+-k +`+x+`
|
+unix_socket_directories = +`+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+`
|
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