Jorge Andrés Brugger schrieb am 11.05.2010 um 08:25:17 (-0300):

> The data shown is the data the table has now. There is no
> duplicate values for the smallint field. It´s not expected
> to have more records than it actually has.
>
> Any other tip?

Write a ready-to-run-and-rerun DROP-and-CREATE SQL test case
exhibiting the error and post it here so others can try and
reproduce it on their home installations.

--
Michael Ludwig