On Thu, 2003-05-22 at 07:51, psql novice wrote:
> Is there a timestamp data type that will automatically update the date
> and time when a record gets inserted/updated. I know MySQL has this
> feature, i was wondering if postgresql had a equivalent data type
>
> MySQL Doc
> "The TIMESTAMP column type provides a type that you can use to
> automatically mark INSERT or UPDATE operations with the current date
> and time."
There is no type that does this.
The way to do it on INSERT is:
CREATE TABLE xxx (
ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
...);
This can be overridden if the insert provides a value for the field.
If you need it not to be overrideable or to be changed on update as
well, you need a trigger to fire BEFORE UPDATE OR INSERT
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight, UK http://www.lfix.co.uk/oliver
GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C
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