Juan Manuel García Arias <desarrollo@centrored.com> writes:
> �What is this file?
> �what can I do? One of this file is of 2.6 Gb
Files named like that are just temporary files for sorting; you can
remove them if the creating process isn't around anymore.
BTW, consider updating to a more recent version of Postgres. We haven't
named the temp files like that for quite a while.
regards, tom lane