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-rw-r--r--doc/src/sgml/ref/postgres-ref.sgml13
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/postgres-ref.sgml b/doc/src/sgml/ref/postgres-ref.sgml
index 4aaa7abe1a2..805da81e073 100644
--- a/doc/src/sgml/ref/postgres-ref.sgml
+++ b/doc/src/sgml/ref/postgres-ref.sgml
@@ -298,6 +298,19 @@ PostgreSQL documentation
</varlistentry>
<varlistentry>
+ <term><option>-R <replaceable class="parameter">file-descriptor</replaceable></option></term>
+ <listitem>
+ <para>
+ Makes <command>postgres</command> prompt for a passphrase or PIN
+ from the specified open numeric file descriptor. The descriptor
+ is closed after the key is read. The file descriptor number
+ <literal>-1</literal> duplicates standard error for the terminal;
+ this is useful for single-user mode.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><option>-s</option></term>
<listitem>
<para>