How to select only 1 column from a table?

[Richard Grossman]

Hi,

I try to select only 1 column from a table using the peer object method DoSelect()
I've try:
      Criteria crit = new Criteria();
      crit.addSelectColumn(mainProductPeer.MAIN_PRODUCT_SEQID);
      List SeqIDList = mainProductPeer.doSelect(crit);

I receive an Exception :
     com.workingdogs.village.DataSetException: Only 1 columns exist!

Is it possible do this with Torque peer object?
If not is there another solution ?

Thanks

Richard