Re: bumping all sequence ids in a schema

[Mike Broers <mbroers@xxxxxxxxx>]

Wow thanks for the code!!  I'll test it out and let you know if I get any unexpected results.

On Wed, Nov 7, 2012 at 8:39 PM, Craig Ringer <ringerc@xxxxxxxxxxxxx> wrote:

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