Re: [Zope] ZCatalog: How to request boolean NOT searches?

Doug Morse writes:

... negating a ZCatalog index lookup ...

Only ZCatalog text indexes support a restricted form of negation. Keyword and field indexes do not. Text indexes support only "and not": e.g. "Zope and not databases". Free standing "not" or combined with "or" (rather than "and") is not supported. Dieter