Re: Script to reset all sequence values in the a given DB?

 Did you want to set to a specific known value or the min value of the
sequence.  I think Pavel's sets to the min value of the sequence.

The below sets all the sequences to the same value

CREATE AGGREGATE sum ( BASETYPE = text,
                      SFUNC = textcat,
                        STYPE = text,
                        INITCOND = '' );


CREATE OR REPLACE FUNCTION cp_resetsequences(resetto integer)
  RETURNS void AS
$BODY$
BEGIN
    EXECUTE (SELECT SUM('ALTER SEQUENCE ' || sequence_schema || '.'
|| sequence_name || ' RESTART WITH ' || CAST(resetto As varchar(50)) ||
'; ' ) 
        FROM  information_schema.sequences);
END
$BODY$
  LANGUAGE 'plpgsql' VOLATILE;


--Note this will set all the sequences in the database to 150
 SELECT cp_resetsequences(150);



-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] On Behalf Of Pavel Stehule
Sent: Monday, December 10, 2007 4:33 PM
To: Nathan Wilhelmi
Cc: PGSQL Mailing List
Subject: Re: [GENERAL] Script to reset all sequence values in the a
given DB?

On 10/12/2007, Nathan Wilhelmi <wilhelmi@ucar.edu> wrote:
> Hello - Does anyone happen to have a SQL script or function that can
> reset all the sequence values found in a given DB? When we rebuild the
> DB it would be handy to be able to set all the sequence back to a
known
> starting place.
>

create or replace function resetall()
returns void as $$
declare
  v varchar;
  m integer;
begin
  for v in
     select n.nspname || '.' || c.relname
         from pg_catalog.pg_class c
                  left join
                  pg_catalog.pg_namespace n
                  on n.oid = c.relnamespace
        where c.relkind = 'S'
  loop
    execute 'select min_value from '||v into m;
    setval(v, m, false);
  end loop;
  return;
end; $$ language plpgsql;

Regards

Pavel Stehule
> Thanks!
>
> -Nate
>
>
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