[Zope-dev] intersection of ZCatalog queries on the same index

If there a way to get ZCatalog to give me intersections of results on a single index? All the examples and tutorials I've seen are union (OR) queries. Basically I just want ZCatalog to give me items where keywords contained both 'foo' and 'bar'. I have browsed through Catalog.py and it seems like it might be possible. Disclaimer, I'm pretty new to Zope & python. -- Neil Kandalgaonkar <NeilK@ActiveState.com> Web Application Developer, ActiveState