Re: "Resurrected" data files - problem?

Peter Childs wrote:
>> We use a tape backup software that does "incremental backups"
[...]
>> So if we perform our database backups with incremental
>> backups as described above, we could end up with additional
>> files after the restore, because PostgreSQL files can get
>> deleted (e.g. during DROP TABLE or TRUNCATE TABLE).
>>
>> My question is:
>>
>> Could such "resurrected" files (data files, files in
>> pg_xlog, pg_clog or elsewhere) cause a problem for the database
>> (other than the obvious one that there may be unnecessary files
>> about that consume disk space)?
>
> This will not work at all.

Can you give me a good reason why?

> Try re-reading the instructions on backup in the manual.

I know them well. That is why I ask if this questionable procedure
could lead to damage.

Yours,
Laurenz Albe