From: Andrew Dunstan <andrew@dunslane.net>
To: sthomas@optionshouse.com
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Dave Johansen <davejohansen@gmail.com>
Cc: bricklen <bricklen@gmail.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Partitions not Working as Expected
Date: Thu, 27 Jun 2013 15:49:26 -0400
Message-ID: <51CC9746.5060804@dunslane.net> (raw)
In-Reply-To: <51CC8F1A.1090805@optionshouse.com>
References: <51CC652F.3010304@optionshouse.com>
<A76B25F2823E954C9E45E32FA49D70EC1BBD8EEA@mail.corp.perceptron.com>
<51CC73B6.2050406@optionshouse.com>
<CAGrpgQ_3pCLt3CJnap3z+nWe3-Q=A3sMH7OKP0sUeo79kViD8w@mail.gmail.com>
<CAAcYxUfCaYbpAv-sQaNGKEVK2UZA1BtL87jM8LBd81ZomaLUuA@mail.gmail.com>
<51CC8160.2080905@optionshouse.com>
<27533.1372358546@sss.pgh.pa.us>
<51CC8F1A.1090805@optionshouse.com>
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-performance>
On 06/27/2013 03:14 PM, Shaun Thomas wrote:
> On 06/27/2013 01:42 PM, Tom Lane wrote:
>
>> That will break things: CURRENT_DATE will then be equivalent to just
>> writing today's date as a literal.
>
> Interesting. I tested it by creating a view and a table with a
> default, and it always seems to get translated to:
>
> ('now'::text)::date
>
> But I'll take your explanation at face value, since that doesn't imply
> what the output would be. What's interesting is that EnterpriseDB has
> their own pg_catalog.current_date function that gets called by the
> CURRENT_DATE keyword. So unlike in vanilla PG, I could mark just the
> current_date function as immutable without affecting a lot of other
> internals.
>
> On EDB, this actually works:
>
> UPDATE pg_proc
> SET provolatile = 'i'
> WHERE proname = 'current_date';
But that's a lie, surely. If it breaks you have nobody to blame but
yourself. There's a reason EDB haven't marked their function immutable -
it's not.
cheers
andrew
--
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: andrew@dunslane.net, sthomas@optionshouse.com, tgl@sss.pgh.pa.us, davejohansen@gmail.com, bricklen@gmail.com
Subject: Re: Partitions not Working as Expected
In-Reply-To: <51CC9746.5060804@dunslane.net>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox