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

diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 9129f79bbf321f0c29952bf3c24c61c88557f83c..0e5a4a0b86abbef44a1361285842eadd70204792 100644 (file)
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1493,7 +1493,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
          Waiting to apply WAL at recovery because it is delayed.
         
         
-         7">IO
+         8">IO
          BufFileRead
          Waiting for a read from a buffered file.
         
@@ -1609,6 +1609,10 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
          LogicalRewriteSync
          Waiting for logical rewrite mappings to reach stable storage.
         
+        
+         LogicalRewriteTruncate
+         Waiting for truncate of mapping data during a logical rewrite.
+        
         
          LogicalRewriteWrite
          Waiting for a write of logical rewrite mappings.