--On 2. Januar 2013 23:04:43 -0500 Robert Haas <robertmhaas@gmail.com>
wrote:
> TBH, I don't think anyone has any business changing the creation
> timestamp. Ever. For me, the fact that pg_dump wouldn't preserve
> this information would be a feature, not a bug. I mostly meant to
> point out that someone could bypass it if they cared enough, not to
> recommend it. Honestly, I'd probably *rather* store this information
> someplace where it couldn't be changed via SQL *at all*. But I don't
> think we have such a place, so I'm happy enough to store it in the
> catalogs, with the associated risks of catalog hackery that entails.
This is exactly what Informix does, it stores creation or modification
dates of a table in its system catalog (systables.created, to be specific).
Any export/import of tables doesn't preserve the dates, if you restore a
database (or table), the creation date is adjusted. I'm not aware of any
SQL interface to influence this.
--
Thanks
Bernd