Re: Possibly misleading documentation of Template Patterns for Date/Time Formatting

ne 19. 4. 2020 v 15:42 odesílatel Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> napsal:

> David Kubecka <davidkubecka366(at)gmail(dot)com> writes:
> > Anyway, could you shed some light if there's any particular reason why
> TO_DATE(
> > '2012-4', 'YYYY-Q' ) isn't supported?
>
> You can't compute a specific date from that. Nor does it lend itself to
> combination with other fields to reach a specific date --- adding DD
> doesn't do it, and if you add MM, you might as well not bother with Q.
>

I think you very well could if it works e.g. for months: TO_DATE( '2012-4',
'YYYY-MM' ) returns first date of the specified month, so Q could behave
similarly.

Anyway, this is obviously not a big issue, just a minor inconvenience ;-)

>
> regards, tom lane
>