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commit    d3cc1b2ff087cd68f281dad33743640dffbe01d1
Author:   Bruce Momjian <bruce@momjian.us>
Date:     Wed Jul 03 18:25:06 2013 +0000

    pg_buffercache: document column meanings
    Improve documentation for usagecount and relforknumber.
    Backpatch to 9.3
    Suggestion from Satoshi Nagayasu


 doc/src/sgml/pgbuffercache.sgml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/doc/src/sgml/pgbuffercache.sgml b/doc/src/sgml/pgbuffercache.sgml
index 1d7d95f9d7d..685351f11eb 100644
--- a/doc/src/sgml/pgbuffercache.sgml
+++ b/doc/src/sgml/pgbuffercache.sgml
@@ -84,7 +84,8 @@
       <entry><structfield>relforknumber</structfield></entry>
       <entry><type>smallint</type></entry>
       <entry></entry>
-      <entry>Fork number within the relation</entry>
+      <entry>Fork number within the relation;  see
+      <filename>include/storage/relfilenode.h</></entry>
      </row>
 
      <row>
@@ -98,7 +99,7 @@
       <entry><structfield>usagecount</structfield></entry>
       <entry><type>smallint</type></entry>
       <entry></entry>
-      <entry>Page LRU count</entry>
+      <entry>Clock-sweep access count</entry>
      </row>
 
     </tbody>


[parent: 654b702a1c01]