Add description of pg_stat directory into doc.

MasaoFujii · MasaoFujii · commit 8dc90b9c4c45 · 2014-06-05T01:46:31.000+09:00
Back-patch to 9.3 where pg_stat directory was introduced.
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
@@ -186,7 +186,7 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
    For better performance, <varname>stats_temp_directory</> can be
    pointed at a RAM-based file system, decreasing physical I/O requirements.
    When the server shuts down, a permanent copy of the statistics
-   data is stored in the <filename>global</filename> subdirectory, so that
+   data is stored in the <filename>pg_stat</filename> subdirectory, so that
    statistics can be retained across server restarts.
   </para>
 
diff --git a/doc/src/sgml/storage.sgml b/doc/src/sgml/storage.sgml
@@ -93,6 +93,12 @@ Item
  <entry>Subdirectory containing exported snapshots</entry>
 </row>
 
+<row>
+ <entry><filename>pg_stat</></entry>
+ <entry>Subdirectory containing permanent files for the statistics
+  subsystem</entry>
+</row>
+
 <row>
  <entry><filename>pg_stat_tmp</></entry>
  <entry>Subdirectory containing temporary files for the statistics
