From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
Cc: | fabriziomello(at)gmail(dot)com, Robert Haas <robertmhaas(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 14:18:02 |
Message-ID: | CAFj8pRCOudO-0XFfPn_67=Z9UJj+OqjTXCiE9BJRR_aPn7+cEw@mail.gmail.com |
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Lists: | pgsql-hackers |
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
Pavel
>
>
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