Thread: data definition within plpgsql

Hi,

I tried this code (to be inserted within a larger psql script)

do $_$
declare
    next int;
begin
    select max(id) + 1 into next from items;
    execute 'create temp sequence tmp_ids start $1' using next;
end
$_$ language plpgsql;

but that reports a syntax error near $1.
What is the proper way of doing that?

Best regards
Wolfgang Hamann

hamann.w@t-online.de wrote:
> I tried this code (to be inserted within a larger psql script)
> 
> do $_$
> declare
>         next int;
> begin
>         select max(id) + 1 into next from items;
>         execute 'create temp sequence tmp_ids start $1' using next;
> end
> $_$ language plpgsql;
> 
> but that reports a syntax error near $1.
> What is the proper way of doing that?

You cannot use parameters with DDL statements.

This should work:

  EXECUTE format('CREATE TEMP SEQUENCE tmp_ids START %s', $1);

Yours,
Laurenz Albe
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