| From: | Doug McNaught <doug(at)mcnaught(dot)org> |
|---|---|
| To: | "Chris Boget" <chris(at)wild(dot)net> |
| Cc: | "Dustin Sallings" <dustin(at)spy(dot)net>, "NTPT" <ntpt(at)centrum(dot)cz>, "PostgreSQL-general" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Touch row ? |
| Date: | 2004-01-23 16:00:37 |
| Message-ID: | 87ptday7ru.fsf@asmodeus.mcnaught.org |
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| Lists: | pgsql-announce pgsql-general |
"Chris Boget" <chris(at)wild(dot)net> writes:
>> > 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.
-Doug
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