PSQuery intersection

Question

When querying with PSQuery it is very handy that two matching queries can be combined with Union. An example:

var queryPart1 =  = es.PSQuery<A>().Where(..);
var queryPart2 =  = es.PSQuery<B>().Where(..).Select(x => x.A);
var query = queryPart1.Union(queryPart2);

Is there a way to combine two queries by intersection? Following example does not work in our MDriven version but this would be very, very useful:

var queryPart1 =  = es.PSQuery<A>().Where(..);
var queryPart2 =  = es.PSQuery<B>().Where(..).Select(x => x.A);
var query = queryPart1.Intersection(queryPart2);