Re: Freezing localtimestamp and other time function on some value

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Alex Ignatov <a(dot)ignatov(at)postgrespro(dot)ru>
Cc: Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, George Neuner <gneuner2(at)comcast(dot)net>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Freezing localtimestamp and other time function on some value
Date: 2016-04-13 17:22:36
Message-ID: CAKFQuwZv0FzN68PR9nZ_xyoV-sdhYXzqnTkgv7jUd5KWrwbdyA@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

On Wed, Apr 13, 2016 at 10:14 AM, Alex Ignatov <a(dot)ignatov(at)postgrespro(dot)ru>
wrote:

> Some quick and dirty issue resolution is simple:
> set search_path = my_time_schema on db layer. After that you dont need to
> change any code. And can take for example freeze.fixed_date from config =)
> where my_time_schema contains all time function than I want to freeze.
> Nevertheless i dont know how to deal with say localtimestamp with this
> approach %). Where localtimestamp is defined? pg_catalog doesnt have it
>
> Some thoughts about localtimestamp redifinition with search_path?
>

​"localtimestamp" isn't really a function but a keyword​

​that somewhat behaves as one.

http://www.postgresql.org/docs/current/static/functions-datetime.html

​Specifically those defined in 9.9.4​

The fact that they can be used without adding the parenthesis is a big
give-away. All true functions must use them. Note that these time
function do allow parentheses but they have a different meaning - to
specify precision as opposed to passing arguments - though the do look
similar.

​David J.​

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Daniel Lenski 2016-04-13 18:36:21 sign function with INTERVAL?
Previous Message Alex Ignatov 2016-04-13 17:14:23 Re: Freezing localtimestamp and other time function on some value