20.18. 短选项#

为了方便，还为某些参数提供了单字母命令行选项开关。它们在表 20.4中进行了描述。其中一些选项出于历史原因而存在，它们作为单字母选项出现并不一定表示认可大量使用该选项。

表 20.4. 短选项键

短选项	等效项
-B x	shared_buffers = x
-d x	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
-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