| From: | "Chris Boget" <chris(at)wild(dot)net> |
|---|---|
| To: | "Doug McNaught" <doug(at)mcnaught(dot)org> |
| Cc: | "PostgreSQL-general" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Touch row ? |
| Date: | 2004-01-23 16:08:21 |
| Message-ID: | 01f001c3e1cb$20dcae50$8c01a8c0@ENTROPY |
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| Thread: | |
| Lists: | pgsql-announce pgsql-general |
> >> > is it possible to add column to database, that will automatically
> >> > contain date+time (or likely Unix timestamp) when the row was
> >> > touched/changed - ie by INSERT or UPDATE ?
> >> Yes, a very simple trigger can do this.
> > Wouldn't just setting the default value of the field to be NOW() accomplish
> > the same thing? Or can you not default the value of a timestamp field?
> Defaults only apply at INSERT time, not UPDATE.
Interesting. Yet another item to tack onto my list of differences between
MySQL and Postgres.
Thanks!
Chris
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