Re: data definition within plpgsql

From: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
To: hamann(dot)w(at)t-online(dot)de, pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: data definition within plpgsql
Date: 2019-01-28 10:23:52
Message-ID: 5f10540a045ef37e7ab877fcc110e1742f34350a.camel@cybertec.at
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hamann(dot)w(at)t-online(dot)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
--
Cybertec | https://www.cybertec-postgresql.com

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