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From: Tom Lane <[email protected]>
To: Sebastien FLAESCH <[email protected]>
Cc: [email protected]
Subject: Re: Type scale returned by PQfmod() 65531 for time/timestamp output parameter?
Date: Thu, 15 Feb 2018 11:25:40 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Sebastien FLAESCH <[email protected]> writes:
> When using a stored function returning output parameters defined with as time[(n)]
> or timestamp[(n)], PQfmod() always returns the same SCALE (65531/0xFFFB), no matter
> what time/timestamp precision is used.

Your misunderstanding is in assuming that typmod decoration on function
parameters means anything.  It doesn't; the function is effectively just
declared as taking or returning plain time or timestamp.

Perhaps someday that will change, but it'd be a big task with a lot of
hard decisions to make.  For instance, do we allow creation of both
f(time(2)) and f(time(4)), and if so what's the rule for choosing which
one to call?

			regards, tom lane

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