Fix documentation for pg_stat_recovery_prefetch.

The table was in the wrong section and using an older type of link, as
reported by Sirisha, and also using an older table layout, as I noticed
while trying to figure out how and when it might have got out of sync.

Defect in commit 5dc0418f.

Author: sirisha chamarthi 
Author: Thomas Munro 
Discussion: https://postgr.es/m/CAKrAKeVk-LRHMdyT6x_p33eF6dCorM2jed5h_eHdRdv0reSYTA@mail.gmail.com

diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 87b6e5fb5e86b4384ceb935518ebd474ac4a4502..180798a6b95bc40bd70b6fe556e8c39864902f0e 100644 (file)
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -336,7 +336,8 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
      
       pg_stat_recovery_prefetchpg_stat_recovery_prefetch
       Only one row, showing statistics about blocks prefetched during recovery.
-       See  for details.
+       See 
+       pg_stat_recovery_prefetch for details.
       
      
 
@@ -2977,89 +2978,147 @@ SELECT pid, wait_event_type, wait_event FROM pg_stat_activity WHERE wait_event i
 
  
 
- subscription">
-  <structname>pg_stat_<span class="marked">subscription</span></structname>
+ recovery-prefetch">
+  <structname>pg_stat_<span class="marked">recovery_prefetch</span></structname>
 
   
-   pg_stat_subscription
+   pg_stat_recovery_prefetch
   
 
   
-   The pg_stat_subscription view will contain one
-   row per subscription for main worker (with null PID if the worker is
-   not running), and additional rows for workers handling the initial data
-   copy of the subscribed tables.
+   The pg_stat_recovery_prefetch view will contain
+   only one row.  The columns wal_distance,
+   block_distance and
+   io_depth show current values, and the
+   other columns show cumulative counters that can be reset
+   with the pg_stat_reset_shared function.
   
 
   
    <structname>pg_stat_recovery_prefetch</structname> View
-   3">
+   1">
     
-    
-      Column
-      Type
-      Description
+     
+      
+       Column Type
+      
+      
+       Description
+      
      
     
 
-   
-    
-     prefetch
-     bigint
-     Number of blocks prefetched because they were not in the buffer pool
-    
-    
-     hit
-     bigint
-     Number of blocks not prefetched because they were already in the buffer pool
-    
-    
-     skip_init
-     bigint
-     Number of blocks not prefetched because they would be zero-initialized
-    
-    
-     skip_new
-     bigint
-     Number of blocks not prefetched because they didn't exist yet
-    
-    
-     skip_fpw
-     bigint
-     Number of blocks not prefetched because a full page image was included in the WAL
-    
-    
-     skip_rep
-     bigint
-     Number of blocks not prefetched because they were already recently prefetched
-    
-    
-     wal_distance
-     integer
-     How many bytes ahead the prefetcher is looking
-    
-    
-     block_distance
-     integer
-     How many blocks ahead the prefetcher is looking
-    
-    
-     io_depth
-     integer
-     How many prefetches have been initiated but are not yet known to have completed
-    
+    
+     
+      
+       
+        prefetch bigint
+       
+       
+        Number of blocks prefetched because they were not in the buffer pool
+       
+      
+     
+
+     
+      
+       
+        hit bigint
+       
+       
+        Number of blocks not prefetched because they were already in the buffer pool
+       
+      
+     
+
+     
+      
+       
+        skip_init bigint
+       
+       
+        Number of blocks not prefetched because they would be zero-initialized
+       
+      
+     
+
+     
+      
+       
+        skip_new bigint
+       
+       
+        Number of blocks not prefetched because they didn't exist yet
+       
+      
+     
+
+     
+      
+       
+        skip_fpw bigint
+       
+       
+        Number of blocks not prefetched because a full page image was included in the WAL
+       
+      
+     
+
+     
+      
+       
+        skip_rep bigint
+       
+       
+        Number of blocks not prefetched because they were already recently prefetched
+       
+      
+     
+
+     
+      
+       
+        wal_distance int
+       
+       
+        How many bytes ahead the prefetcher is looking
+       
+      
+     
+
+     
+      
+       
+        block_distance int
+       
+       
+        How many blocks ahead the prefetcher is looking
+       
+      
+     
+
+     
+      
+       
+        io_depth int
+       
+       
+        How many prefetches have been initiated but are not yet known to have completed
+       
+      
+     
     
    
   
 
-  >
-   The pg_stat_recovery_prefetch view will contain
-   only one row.  The columns wal_distance,
-   block_distance and
-   io_depth show current values, and the
-   other columns show cumulative counters that can be reset
-   with the pg_stat_reset_shared function.
-  para>
+ >
+
+ 
+  <structname>pg_stat_subscription</structname>
+
+  
+   pg_stat_subscription
+  indexterm>
 
   
    <structname>pg_stat_subscription</structname> View