Problem with simple select, RestrictionClauseSelectivity ERROR

Hello,

I have a very simple select , and get an error back I do not understand
 :
rhalloc=> select id from groupe where species='mouse';
ERROR:  RestrictionClauseSelectivity: bad value
-170141183460469231731687303715884105728.000000


I can select on all the other fields. The field species was added after the
creation of the table, and the data in that field added at that time.
What have I done wrong? thanks for any pointers, here is all my table def (and
data since there are only 3 rows !)


The table is very small :
rhalloc=> select * from groupe;
id|contact_id|  sub_date|size|release_date|status |species
--+----------+----------+----+------------+-------+-------
 1|        31|23-04-1998| 474|            |pending|mouse
 2|        36|03-08-1998|3496|            |pending|mouse
 3|         3|28-05-1998| 799|            |pending|mouse
(3 rows)

and here is the format :
rhalloc=> \d groupe

Table    = groupe
+----------------------------------+----------------------------------+-------+
|              Field               |              Type                | Length|
+----------------------------------+----------------------------------+-------+
| id                               | int4 not null                    |     4 |
| contact_id                       | int4 not null                    |     4 |
| sub_date                         | date not null                    |     4 |
| size                             | int4 not null                    |     4 |
| release_date                     | date                             |     4 |
| status                           | text not null                    |   var |
| species                          | text                             |   var |
+----------------------------------+----------------------------------+-------+




cheers

pat

=======================================================================
Dr. Patricia Rodriguez-Tome        | URL:  http://www.ebi.ac.uk
R & D Coordinator
The EMBL Outstation, Hinxton - The European Bioinformatics Institute
Wellcome Trust genome Campus, Hinxton    | Tel:    +44 (0)1223 494 409
Cambridge CB10 1SD, UK            | Fax:    +44 (0)1223 494 468
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