Ron Mayer <[EMAIL PROTECTED]> writes: > Would formatting functions for intervals such as... > to_iso8601basic_char(interval) -- return ISO-8601 basic fmt interval > to_iso8601basic_char(timestamp) -- return ISO-8601 basic fmt date/time > would be better than a new GUC variable?
I could see arguments for both --- in the timestamp world we have DateStyle to control the default output format, plus to_char when you want something different. I'd suggest continuing with your plan of providing GUC control over the default interval format (just use a separate GUC variable, please, for orthogonality). If you want to add an explicit formatting function later, you can do that too. BTW, I do not recall exactly why Karel wants to deprecate to_char(interval), but I don't think it's because of any fundamental objection to the notion of a formatting function. I think it was because the present definition is badly designed and needs to be replaced with a different API. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend