Re: USECS_* constants undefined with float8 timestamps? - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: USECS_* constants undefined with float8 timestamps?
Date
Msg-id 201108130132.p7D1WdM12619@momjian.us
Whole thread Raw
In response to Re: USECS_* constants undefined with float8 timestamps?  ("Johann 'Myrkraverk' Oskarsson" <johann@2ndquadrant.com>)
List pgsql-hackers
Johann 'Myrkraverk' Oskarsson wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> 
> > Robert Haas wrote:
> >> On Fri, Jul 29, 2011 at 11:18 AM, Johann 'Myrkraverk' Oskarsson
> >> <johann@2ndquadrant.com> wrote:
> >> >
> >> > I just noticed that the USECS_* constants are not defined when
> >> > the server is compiled without integer dates and timestamps.
> [snip]
> >> I don't see any particular reason not define them unconditionally.
> >
> > Well, they are only used by integer dates, so why expand their
> > visibility?  The define does make it clear how they are used.  I
> > suppose if someone wanted to use them outside that case, we could
> > open them up. It is true that with integer dates now the default, we
> > might find that someone introduces compile problems by using them
> > outside the integer dates scope.
> 
> I found a use for them in PL/Java which detects at run-time whether
> the server is using floating point or integer dates.  The simplest way
> was just to use magic numbers instead on the off chance it's compiled
> with a server using float dates.

OK, that is a good reason.  Done for PG 9.2.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + It's impossible for everything to be true. +


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