@@ -551,8 +551,9 @@ SET ENABLE_SEQSCAN TO OFF;
551551 an otherwise idle connection. A value of 0 uses the system default.
552552 This parameter is supported only on systems that support the
553553 <symbol>TCP_KEEPIDLE</> or <symbol>TCP_KEEPALIVE</> symbols, and on
554- Windows; on other systems, it must be zero. This parameter is ignored
555- for connections made via a Unix-domain socket.
554+ Windows; on other systems, it must be zero.
555+ In sessions connected via a Unix-domain socket, this parameter is
556+ ignored and always reads as zero.
556557 </para>
557558 <note>
558559 <para>
@@ -574,8 +575,9 @@ SET ENABLE_SEQSCAN TO OFF;
574575 otherwise idle connection. A value of 0 uses the system default.
575576 This parameter is supported only on systems that support the
576577 <symbol>TCP_KEEPINTVL</> symbol, and on Windows; on other systems, it
577- must be zero. This parameter is ignored for connections made via a
578- Unix-domain socket.
578+ must be zero.
579+ In sessions connected via a Unix-domain socket, this parameter is
580+ ignored and always reads as zero.
579581 </para>
580582 <note>
581583 <para>
@@ -596,8 +598,9 @@ SET ENABLE_SEQSCAN TO OFF;
596598 Specifies the number of keepalive packets to send on an otherwise idle
597599 connection. A value of 0 uses the system default. This parameter is
598600 supported only on systems that support the <symbol>TCP_KEEPCNT</>
599- symbol; on other systems, it must be zero. This parameter is ignored
600- for connections made via a Unix-domain socket.
601+ symbol; on other systems, it must be zero.
602+ In sessions connected via a Unix-domain socket, this parameter is
603+ ignored and always reads as zero.
601604 </para>
602605 <note>
603606 <para>