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-rw-r--r--doc/src/sgml/config.sgml6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 3777cfa52a7..698169afdb6 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -708,6 +708,12 @@ include_dir 'conf.d'
</para>
<para>
+ PostgreSQL sizes certain resources based directly on the value of
+ <varname>max_connections</varname>. Increasing its value leads to
+ higher allocation of those resources, including shared memory.
+ </para>
+
+ <para>
When running a standby server, you must set this parameter to the
same or higher value than on the primary server. Otherwise, queries
will not be allowed in the standby server.