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

David Kubecka <davidkubecka366(at)gmail(dot)com> writes:
> on the official docs
> https://www.postgresql.org/docs/9.6/functions-formatting.html see the table
> 9-24 and Pattern "Q". The doc (for version 9.6) says:

> quarter (ignored by to_date and to_timestamp)

> All the later versions of the doc (10, 11, 12) miss the "ignored" note

It's still there, just further down:

* In to_timestamp and to_date, weekday names or numbers (DAY, D, and
related field types) are accepted but are ignored for purposes of
computing the result. The same is true for quarter (Q) fields.

I think this was changed because we noticed that the docs failed to point
out the issue for weekday fields, and cramming similar annotations into
their already-long table entries didn't make sense. So the info got moved
to the commentary below.

regards, tom lane