Re: Table create time

From: Achilleas Mantzios <achill(at)matrix(dot)gatewaynet(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Table create time
Date: 2017-08-31 15:26:56
Message-ID: a8dd8bd0-e44a-ca85-55f2-7f1e3b027b08@matrix.gatewaynet.com
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On 31/08/2017 18:20, Melvin Davidson wrote:
> >you could just create an event trigger looking for CREATE TABLE as filter_value:
>
> I have tried that. Unfortunately, I have been unable to extract the table name from the event because TG_TABLE_NAME is not
> available during an event trigger, albeit perhaps I am missing something?
You need to use ddl_command_end event and then select from pg_event_trigger_ddl_commands() . Search for some example how to do this.
> That being said, I still believe it is extra work that could easily be avoided and should be added to the postgresql catalogs simply to be
> more feature competitive with Oracle & SQL Server, as well as a boost to the PostgreSQL community.
>
> On Thu, Aug 31, 2017 at 10:54 AM, Michael Paquier <michael(dot)paquier(at)gmail(dot)com <mailto:michael(dot)paquier(at)gmail(dot)com>> wrote:
>
> On Thu, Aug 31, 2017 at 10:21 PM, Melvin Davidson <melvin6925(at)gmail(dot)com <mailto:melvin6925(at)gmail(dot)com>> wrote:
> > Wolfgang, as David said, a column in pg_class for the creation time of a table does not exist. I long ago requested that feature as it is
> > in other DB's (Oracle & MS SQL Server), but the main reason that it was not done was that no one was interested in doing it.
>
> Is there any need for a column in pg_class for that? You could just
> create an event trigger looking for CREATE TABLE as filter_value:
> https://www.postgresql.org/docs/9.6/static/sql-createeventtrigger.html <https://www.postgresql.org/docs/9.6/static/sql-createeventtrigger.html>
> And then have this event trigger just save the timestamp value of
> now() in a custom table with the name and/or OID of the relation
> involved.
> --
> Michael
>
>
>
>
> --
> *Melvin Davidson*
> I reserve the right to fantasize. Whether or not you
> wish to share my fantasy is entirely up to you.

--
Achilleas Mantzios
IT DEV Lead
IT DEPT
Dynacom Tankers Mgmt

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