Re: porting time calcs to PG

greg@bryantrecording.com wrote:
>
> I'm trying to port an MS statement that's a bit involved with
> timestamps, and I don't see anything in the docs to lead me forward.
> It's basically a select statement, looking for records with a timestamp
> within a certain range, where that range is calculated with one of the
> fields.  The WHERE clause that I use in SQL Server is:
> getdate() + ((2100 + 5 + (9*Points)) / 86400) >= DueTime
>
> Where the numbers are actually parameters passed in to the function.
> Other than changine getdate() to now(), I'm not sure how to change the
> + interval to be effective.  All the docs I see use something like
> interval '1 hour' - not sure how to put a calculated value in the
> quotes.  Is this possible?
>
For the interval part, you can try
interval '1 minute' * <some number>