Ron Mayer <[EMAIL PROTECTED]> writes:
> Back a while ago (2003) there was some talk about replacing
> some of the non-standard extensions with shorthand forms of
> intervals with ISO 8601 intervals that have a similar but
> not-the-same shorthand.
I think *replacement* would be a hard sell, as that would tick off all
the existing users ;-). Now it seems like being able to accept either
the 8601 syntax or the existing syntaxes on input wouldn't be tough
at all, if you insist on the P prefix to distinguish; so that end of
it should be easy enough. On the output side, seems like a GUC variable
is the standard precedent here. I'd still vote against overloading
DateStyle --- it does too much already --- but a separate variable for
interval style wouldn't bother me. In fact, given that we are now
somewhat SQL-compliant on interval input, a GUC that selected
PG traditional, SQL-standard, or ISO 8601 interval output format seems
like it could be a good idea.
regards, tom lane
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