Andres Freund <> writes:
> On 2014-08-20 10:19:33 -0400, Tom Lane wrote:
>> Alternatively, you could use the process PID as part of the temp file
>> name; which is probably a good idea anyway.

> I think that's actually worse, because nothing will clean up those
> unless you explicitly scan for all <whatever>.$pid files, and somehow
> kill them.

True.  As long as the copy command is prepared to get rid of a
pre-existing target file, using a fixed .tmp extension should be fine.

                        regards, tom lane

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