Noted by Noah Misch, patch by Fujii Masao
WAL segments that cannot be found in the archive will be sought in
<filename>pg_xlog/</>; this allows use of recent un-archived segments.
However, segments that are available from the archive will be used in
- preference to files in <filename>pg_xlog/</>. The system will not
- overwrite the existing contents of <filename>pg_xlog/</> when retrieving
- archived files.
+ preference to files in <filename>pg_xlog/</>.
</para>
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