doc: mention CREATE MATERIALIZED VIEW AS can be EXPLAINed

Patch by Amit Langote

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Backpatch through

1 files changed, 3 insertions, 2 deletions

diff --git a/doc/src/sgml/ref/explain.sgml b/doc/src/sgml/ref/explain.sgml
index c4aa95f930..72776a0fde 100644
--- a/doc/src/sgml/ref/explain.sgml
+++ b/doc/src/sgml/ref/explain.sgml
@@ -228,8 +228,9 @@ ROLLBACK;
      <para>
       Any <command>SELECT</>, <command>INSERT</>, <command>UPDATE</>,
       <command>DELETE</>, <command>VALUES</>, <command>EXECUTE</>,
-      <command>DECLARE</>, or <command>CREATE TABLE AS</command>
-      statement, whose execution plan you wish to see.
+      <command>DECLARE</>, <command>CREATE TABLE AS</>, or
+      <command>CREATE MATERIALIZED VIEW AS</> statement, whose execution
+      plan you wish to see.
      </para>
     </listitem>
    </varlistentry>