Commit f71939cd authored by Bruce Momjian's avatar Bruce Momjian

pg_buffercache: document column meanings

Improve documentation for usagecount and relforknumber.
Backpatch to 9.3.
Suggestion from Satoshi Nagayasu
parent f33c53ec
...@@ -84,7 +84,8 @@ ...@@ -84,7 +84,8 @@
<entry><structfield>relforknumber</structfield></entry> <entry><structfield>relforknumber</structfield></entry>
<entry><type>smallint</type></entry> <entry><type>smallint</type></entry>
<entry></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>
<row> <row>
...@@ -98,7 +99,7 @@ ...@@ -98,7 +99,7 @@
<entry><structfield>usagecount</structfield></entry> <entry><structfield>usagecount</structfield></entry>
<entry><type>smallint</type></entry> <entry><type>smallint</type></entry>
<entry></entry> <entry></entry>
<entry>Page LRU count</entry> <entry>Clock-sweep access count</entry>
</row> </row>
</tbody> </tbody>
......
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