Fix documentation for wal_summary_keep_time.

The documentation for this parameter lists its type as boolean, but
it is actually an integer.  Furthermore, there is no mention of how
the value is interpreted when specified without units.  This commit
fixes these oversights in commit 174c480508.

Co-authored-by: Hubert Depesz Lubaczewski
Discussion: https://postgr.es/m/ZZwkujFihO2uqKwp%40depesz.com

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index f323bba018f9f944694b3798454c97e137a744de..61038472c5a57fba3fd763e58f862564bc767316 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -4179,7 +4179,7 @@ restore_command = 'copy "C:\\server\\archivedir\\%f" "%p"'  # Windows
      </varlistentry>
 
      <varlistentry id="guc-wal-summary-keep-time" xreflabel="wal_summary_keep_time">
-      <term><varname>wal_summary_keep_time</varname> (<type>boolean</type>)
+      <term><varname>wal_summary_keep_time</varname> (<type>integer</type>)
       <indexterm>
        <primary><varname>wal_summary_keep_time</varname> configuration parameter</primary>
       </indexterm>
@@ -4198,6 +4198,7 @@ restore_command = 'copy "C:\\server\\archivedir\\%f" "%p"'  # Windows
        know will not be required for future incremental backups.
        This parameter can only be set in the
        <filename>postgresql.conf</filename> file or on the server command line.
+       If this value is specified without units, it is taken as minutes.
        The default is 10 days. If <literal>summarize_wal = off</literal>,
        existing WAL summaries will not be removed regardless of the value of
        this parameter, because the WAL summarizer will not run.