setval('myfunsequence', 0)

The subject statement does not work for automagically generated sequences (minvalue is 1 by default, it seems.)  I need
toreset a sequence to where nextval('myfunsequence') is 1, and the only way to do it (I think) is to
setval('myfunsequence',0). 

I can just create this particular sequence with minvalue 0 start 1, but I am wondering what is the downside to this
beingthe default?  Alternatively, is there a way to make setval accept a value that is $start - $increment as seems to
happenon creation? 

Visual Aids Follow...

test=# create sequence myfunsequence;
CREATE
test=# select nextval('myfunsequence');
 nextval
---------
       1
(1 row)

test=# select nextval('myfunsequence');
 nextval
---------
       2
(1 row)

test=# select setval('myfunsequence',0);
ERROR:  myfunsequence.setval: value 0 is out of bounds (1,9223372036854775807)
test=# select setval('myfunsequence',1);
 setval
--------
      1
(1 row)

test=# select nextval('myfunsequence');
 nextval
---------
       2
(1 row)

test=# drop sequence myfunsequence;
DROP
test=# create sequence myfunsequence minvalue 0 start 1;
CREATE
test=# select nextval('myfunsequence');
NOTICE:  myfunsequence.nextval: sequence was re-created
 nextval
---------
       1
(1 row)

test=# select nextval('myfunsequence');
 nextval
---------
       2
(1 row)

test=# select setval('myfunsequence',0);
 setval
--------
      0
(1 row)

test=# select nextval('myfunsequence');
 nextval
---------
       1
(1 row)

Thanks!!

Ian Harding
Programmer/Analyst II
Tacoma-Pierce County Health Department
iharding@tpchd.org
(253) 798-3549