2 files changed, 34 insertions, 0 deletions
diff --git a/doc/src/sgml/auto-explain.sgml b/doc/src/sgml/auto-explain.sgml
index 3d619d4a3dd..d4d29c4a649 100644
--- a/doc/src/sgml/auto-explain.sgml
+++ b/doc/src/sgml/auto-explain.sgml
@@ -111,6 +111,26 @@ LOAD 'auto_explain';
 
    <varlistentry>
     <term>
+     <varname>auto_explain.log_wal</varname> (<type>boolean</type>)
+     <indexterm>
+      <primary><varname>auto_explain.log_wal</varname> configuration parameter</primary>
+     </indexterm>
+    </term>
+    <listitem>
+     <para>
+      <varname>auto_explain.log_wal</varname> controls whether WAL
+      usage statistics are printed when an execution plan is logged; it's
+      equivalent to the <literal>WAL</literal> option of <command>EXPLAIN</command>.
+      This parameter has no effect
+      unless <varname>auto_explain.log_analyze</varname> is enabled.
+      This parameter is off by default.
+      Only superusers can change this setting.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term>
      <varname>auto_explain.log_timing</varname> (<type>boolean</type>)
      <indexterm>
       <primary><varname>auto_explain.log_timing</varname> configuration parameter</primary>
diff --git a/doc/src/sgml/ref/explain.sgml b/doc/src/sgml/ref/explain.sgml
index 385d10411fa..024ede4a8d2 100644
--- a/doc/src/sgml/ref/explain.sgml
+++ b/doc/src/sgml/ref/explain.sgml
@@ -41,6 +41,7 @@ EXPLAIN [ ANALYZE ] [ VERBOSE ] <replaceable class="parameter">statement</replac
     COSTS [ <replaceable class="parameter">boolean</replaceable> ]
     SETTINGS [ <replaceable class="parameter">boolean</replaceable> ]
     BUFFERS [ <replaceable class="parameter">boolean</replaceable> ]
+    WAL [ <replaceable class="parameter">boolean</replaceable> ]
     TIMING [ <replaceable class="parameter">boolean</replaceable> ]
     SUMMARY [ <replaceable class="parameter">boolean</replaceable> ]
     FORMAT { TEXT | XML | JSON | YAML }
@@ -193,6 +194,19 @@ ROLLBACK;
    </varlistentry>
 
    <varlistentry>
+    <term><literal>WAL</literal></term>
+    <listitem>
+     <para>
+      Include information on WAL record generation. Specifically, include the
+      number of records, number of full page image records and amount of WAL
+      bytes generated.  In text format, only non-zero values are printed.  This
+      parameter may only be used when <literal>ANALYZE</literal> is also
+      enabled.  It defaults to <literal>FALSE</literal>.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
     <term><literal>TIMING</literal></term>
     <listitem>
      <para>