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Re: Proposal: Store "timestamptz" of database creation on "pg_database"

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, fabriziomello(at)gmail(dot)com, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Stephen Frost <sfrost(at)snowman(dot)net>, Josh Berkus <josh(at)agliodbs(dot)com>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Proposal: Store "timestamptz" of database creation on "pg_database"
Date: 2013-01-03 14:22:36
Message-ID: CA+TgmoZy2WT4vYsAAh1p-4BGu4v=h9hPBmL9=jMezXi0OcBt-w@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Thu, Jan 3, 2013 at 9:18 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
> 2013/1/3 Peter Eisentraut <peter_e(at)gmx(dot)net>:
>> On 1/2/13 11:08 PM, Fabrízio de Royes Mello wrote:
>>> The attached patch add a new column into 'pg_database' called
>>> 'datcreated' to store the timestamp of database creation.
>>>
>>> If this feature is approved I could extend it to add a column into
>>> 'pg_class' to store creation timestamp too.
>>
>> While I'm entirely in favor of this feature in general, I think this is
>> the wrong way to approach it.  It will end up like the CREATE OR REPLACE
>> support: We add it for a few commands in one release, for a few more
>> commands in the next release, for almost all commands in the following
>> release, and now we're still not done.
>>
>> If we're going to store object creation time, I think we should do it
>> for all objects, stored in a separate catalog, like pg_depend or
>> pg_description, keyed off classid, objectid.  And have a simple C
>> function to call to update the information stored there.
>>
>> That would also make storing the modification time, which I'd ask for
>> next, easier.
>
> +1

+1

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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