On Feb 5, 2014, at 12:50 PM, Eliott <eliott...@gmail.com> wrote:

> Dear community,
> 
> I've just noticed that in one of our databases many duplicate tables had 
> appeared all ending  in _copy. These tables are owned by postgres not the db 
> owner user, other than that they seem to be a replica from a specific time in 
> the past. I suspect that a failed backup might have cased these, but I am not 
> sure. I couldn't find any info tables ending in _copy and also I thought that 
> backups run in a transaction so even if they create temporary tables, they 
> should disappear even when the backups fail.
> 
> Can you confirm that this was due to a failed backup?

It’s not.

It sounds like something that a client app would do, possibly as part of a 
(failed) data migration. What app is using the database?

> Is it safe to delete all _copy tables? Should I do any additional 
> housekeeping to clean this up?

Cheers,
  Steve

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