Collector failedCollector = null;
for (int i=0;i<disis.length;i++) {
// TODO: should we sort this 2nd dimension of
// docsEnums from most frequent to least?
DocIdSetIterator disi = disis[i];
if (disi != null && disi.docID() < docID) {
disi.advance(docID);
}
if (disi == null || disi.docID() > docID) {
if (failedCollector != null) {
// More than one dim fails on this document, so