feature_disjoint_from(integer)

SELECT feature.*

  FROM feature

   INNER JOIN featureloc AS x ON (x.feature_id=feature.feature_id)

   INNER JOIN featureloc AS y ON (y.feature_id=$1)

  WHERE

   x.srcfeature_id = y.srcfeature_id            AND

   ( x.fmax < y.fmin OR x.fmin > y.fmax )