Re: Table create time

Achilleas Mantzios <achill@xxxxxxxxxxxxxxxxxxxxx> · Thu, 31 Aug 2017 18:26:56 +0300



    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.paquier@xxxxxxxxx>
          wrote:

          On Thu, Aug 31, 2017 at 10:21 PM, Melvin Davidson
              <melvin6925@xxxxxxxxx>
              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

            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