From 6c221aa56e18b1f1d87e40b33a5d5e48694a6350 Mon Sep 17 00:00:00 2001
From: Fujii Masao <fujii@postgresql.org>
Date: Mon, 17 Feb 2020 15:33:32 +0900
Subject: [PATCH] Add description about LogicalRewriteTruncate wait event into
 document.

Back-patch to v10 where commit 249cf070e3 introduced
LogicalRewriteTruncate wait event.

Author: Fujii Masao
Reviewed-by: Michael Paquier
Discussion: https://postgr.es/m/949931aa-4ed4-d867-a7b5-de9c02b2292b@oss.nttdata.com
---
 doc/src/sgml/monitoring.sgml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index d18b271a58..ab7c233b83 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1472,7 +1472,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
          <entry>Waiting to apply WAL at recovery because it is delayed.</entry>
         </row>
         <row>
-         <entry morerows="66"><literal>IO</literal></entry>
+         <entry morerows="67"><literal>IO</literal></entry>
          <entry><literal>BufFileRead</literal></entry>
          <entry>Waiting for a read from a buffered file.</entry>
         </row>
@@ -1588,6 +1588,10 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
          <entry><literal>LogicalRewriteSync</literal></entry>
          <entry>Waiting for logical rewrite mappings to reach stable storage.</entry>
         </row>
+        <row>
+         <entry><literal>LogicalRewriteTruncate</literal></entry>
+         <entry>Waiting for truncate of mapping data during a logical rewrite.</entry>
+        </row>
         <row>
          <entry><literal>LogicalRewriteWrite</literal></entry>
          <entry>Waiting for a write of logical rewrite mappings.</entry>