Re: bumping all sequence ids in a schema

On 11/08/2012 04:42 AM, Mike Broers wrote:
> I would like to bump all sequences in a schema by a specified
> increment. Is there a stored proc or some method that is recommended?
> Currently I have sql that generates scripts to do this, but it seems
> to be an inelegant approach and before I rework it from the ground up
> I want to see if anyone has already done this kind of work or thinks
> its a wasteful pursuit for some other reason I'm overlooking.

I'd use a PL/PgSQL `DO` block, myself.

DO
$$
DECLARE
seqname text;
nspname text;
seqval bigint;
BEGIN
FOR nspname, seqname IN select n.nspname, c.relname FROM
pg_class c INNER JOIN pg_namespace n ON (c.relnamespace = n.oid)
WHERE c.relkind = 'S' AND n.nspname = 'public' LOOP
EXECUTE format('SELECT last_value FROM %I.%I', nspname,
seqname) INTO seqval;
PERFORM setval(
quote_ident(nspname)||'.'||quote_ident(seqname), seqval + 0);
END LOOP;
END;
$$ LANGUAGE plpgsql;

Change "+ 0" to whatever your increment is.

--
Craig Ringer