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Re: Automate copy - Postgres 9.2

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2016-06-14 9:47 GMT+12:00 Adrian Klaver <adrian.klaver@xxxxxxxxxxx>:
On 06/13/2016 02:42 PM, Patrick B wrote:
Hi guys,

I created this function:

            CREATE or REPLACE FUNCTION function(account_id integer)

            RETURNS void AS $$

            begin

            execute 'COPY

            (

            SELECT * FROM backup_table WHERE account_id = ' ||
            account_id || 'AND status = 1

            )

            TO ''/var/lib/pgsql/'||account_id||'.sql''';

            end

            $$ language 'plpgsql';



The function works fine.. but is not what I need, actually.
The function above works by calling it specifying the account_id. For
example:

You want to copy ( backup ) for the account_id number 63742:

    select function(63742);


*What I need is:*

When calling the function, I have to specify the limit of account_ids to
be copied. For example:
To perform the commands in the function to 40 different account_ids:

    select function (40);



How can I do that? I can't...

I believe this has been asked and answered, namely there needs to be further information on how you want to determine the account ids to be selected.


The account_ids can be random.. does not need to have an order, as they all will be copied some day.

There are more than 1.000.000 million rows in that backup table ( attachments: as pictures, pdfs, etc ), and that's why I can't specify the account_Id manually.. and also need a limit, so the server won't stop while performing the COPY

- Also, each file must have the account_id's name. Example for the account_id = 124134
124134.sql

Please, if you guys could give a help here.. 
Cheers
P.

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