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Specifies the amount of time with no network activity after which the operating system should send a TCP keepalive message to the client. If this value is specified without units, it is taken as seconds. A value of 0 (the default) selects the operating system's default. On Windows, setting a value of 0 will set this parameter to 2 hours, since Windows does not provide a way to read the system default value. This parameter is supported only on systems that support TCP_KEEPIDLE or an equivalent socket option, and on Windows; on other systems, it must be zero. In sessions connected via a Unix-domain socket, this parameter is ignored and always reads as zero.

英文手册覆盖始于 PostgreSQL 7.4. 来源历史与运行验证各自保留独立版本边界。

此版本暂无所选语言的定义，以下显示原始英文内容。

boot val

0

category

Connections and Authentication / TCP Settings

context

user

documented

true

enumvals

未知

extra desc

0 means use the system default.

lang

en

max val

2147483647

metadata version

18

min val

0

name

tcp_keepalives_idle

short desc

Time between issuing TCP keepalives.

source

pg-settings-source-snapshot

unit

s

vartype

integer