Update storage.sgml to reflect current reality.

diff --git a/doc/src/sgml/storage.sgml b/doc/src/sgml/storage.sgml
index 1076020f99a79dc3402f116c6a0d91dd2fa3711e..285cb96b3b27b126ef8c86cc6ca5069859c428d5 100644 (file)
--- a/doc/src/sgml/storage.sgml
+++ b/doc/src/sgml/storage.sgml
@@ -1,5 +1,5 @@
 
 
 
@@ -34,9 +34,8 @@ files, as shown in .  In addition to
 these required items, the cluster configuration files
 postgresql.conf, pg_hba.conf, and
 pg_ident.conf are traditionally stored in
-PGDATA (although beginning in
-PostgreSQL 8.0 it is possible to keep them
-elsewhere). 
+PGDATA (although in PostgreSQL 8.0 and
+later, it is possible to keep them elsewhere). 
 
 
 
@@ -90,6 +89,11 @@ Item
  Subdirectory containing symbolic links to tablespaces
 
 
+
+ pg_twophase
+ Subdirectory containing state files for prepared transactions
+
+
 
  pg_xlog
  Subdirectory containing WAL (Write Ahead Log) files
@@ -437,7 +441,8 @@ data. Empty in ordinary tables.
   The last 2 bytes of the page header,
   pd_pagesize_version, store both the page size
   and a version indicator.  Beginning with
-  PostgreSQL 8.0 the version number is 2; 
+  PostgreSQL 8.1 the version number is 3;
+  PostgreSQL 8.0 used version number 2;
   PostgreSQL 7.3 and 7.4 used version number 1;
   prior releases used version number 0.
   (The basic page layout and header format has not changed in these versions,