: sint sorts in numeric order, int does not. Actually i'm pretty sure all of the numeric FieldTypes sort in numeric order using Lucene's built in int/fload sorting -- check out IntField.getSortField. (the "Sortable" part of the name refers to the fact that the terms sort "correctly" in index order so Range queries work correctly ... they should have really been named "LexigraphicallyOrderedIntField", etc...)
the problem that comes up in relation to the orriginal question... : check the sortMissingLast params in the example config I don't think IntField works with sortMissingLast because it uses Lucene's numeric sorting where docs w/o a value get a defualt of 0 ... you need a Sortable*Field for thta to work. -Hoss
