doc: Fix confusing description of streaming option in START_REPLICATION.

Previously, the documentation described the streaming option as a boolean,
which is outdated since it's no longer a boolean as of protocol version 4.
This could confuse users.

This commit updates the description to remove the "boolean" reference and
clearly list the valid values for the streaming option.

Back-patch to v16, where the streaming option changed to a non-boolean.

Author: Euler Taveira <[email protected]>
Reviewed-by: Fujii Masao <[email protected]>
Discussion: https://postgr.es/m/8d21fb98-5c25-4dee-8387-e5a62b01ea7d@app.fastmail.com
Backpatch-through: 16

diff --git a/doc/src/sgml/protocol.sgml b/doc/src/sgml/protocol.sgml
index c3df074bc3aa1cbfb955bfcae9895c32bcc8477a..d23f3d407d4562e848b48afd55798554b4178bc8 100644 (file)
--- a/doc/src/sgml/protocol.sgml
+++ b/doc/src/sgml/protocol.sgml
@@ -3178,11 +3178,13 @@ psql "dbname=postgres replication=database" -c "IDENTIFY_SYSTEM;"
      </term>
      <listitem>
       <para>
-       Boolean option to enable streaming of in-progress transactions.
-       It accepts an additional value "parallel" to enable sending extra
-       information with some messages to be used for parallelisation.
-       Minimum protocol version 2 is required to turn it on.  Minimum protocol
-       version 4 is required for the "parallel" option.
+       Option to enable streaming of in-progress transactions. Valid values are
+       <literal>off</literal> (the default), <literal>on</literal> and
+       <literal>parallel</literal>. The setting <literal>parallel</literal>
+       enables sending extra information with some messages to be used for
+       parallelization. Minimum protocol version 2 is required to turn it
+       <literal>on</literal>.  Minimum protocol version 4 is required for the
+       <literal>parallel</literal> value.
       </para>
      </listitem>
     </varlistentry>