Re: [Zope] Help with Search in Zope

[Oleg Broytmann]

Developing special SQL-like language for ZCatalog? It is hard. What than?

[Chris McDonough]

I think that it might be better to just use the callback to aggregate search results in interesting ways on a per-index basis. For instance, if you specify three indexes in a query and specify a callback, the callback can do unions or intersections on the result sets returned from each index manually...

Wouldn't it be reasonable to look at Aaron Watters' kjbuckets extension? (http://www.chordate.com/kjbuckets/) It provides union, intersection and difference operations on set- and dictionary-like datatypes.