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pg_upgrade doc: link mode additions 

Mention that link mode uses less disk space, and uses junction points on
Windows.

Backpatch to 9.3.
This commit is contained in:
Bruce Momjian 2013-10-05 10:18:02 -04:00
parent 1310d4cab2
commit 85fa8293ad
1 changed files with 4 additions and 2 deletions
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6
doc/src/sgml/pgupgrade.sgml
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@ -122,7 +122,8 @@
<varlistentry>
<term><option>-k</option></term>
<term><option>--link</option></term>
<listitem><para>use hard links instead of copying files to the new cluster</para></listitem>
<listitem><para>use hard links instead of copying files to the new
cluster (use junction points on Windows)</para></listitem>
</varlistentry>
<varlistentry>
@ -333,7 +334,8 @@ NET STOP pgsql-8.3 (<productname>PostgreSQL</> 8.3 and older used a different s
<para>
If you use link mode, the upgrade will be much faster (no file
copying), but you will not be able to access your old cluster
copying) and use less disk space, but you will not be able to access
your old cluster
once you start the new cluster after the upgrade. Link mode also
requires that the old and new cluster data directories be in the
same file system. (Tablespaces and <filename>pg_xlog</> can be on