Ditto filter with Boolean AND

I´m wondering if it is possible to filter the output of Ditto with 2 different criterias from TVs associated with the documents). The basic filter allows to set more then one filter but they are connected with OR. (tv1,50,2|tv2,52,2 will show any document where tv1 is 50 OR tv2 is 61) What I would need is something like this: show all docs where tv1 is 50 AND tv2 is 61

How can I achieve this with help of costums filters?

Thank you.

You only need to consider Boole’s arithmetics a bit:

"tv1,50,1|tv2,61,1" is your seeking formula because it is just negation what Ditto’s filter actually does -- it throws out (instead of returning) elements that meet described criteria thus leaving you with those remaining. (q.e.d.)

In other words, to _obtain_ subset of elements that meets criterion1 AND criterion2 AND ... you need to _throw out_ subset that meets not(criterion1) OR not(criterion2) OR ... -> subset + negation(subset) = full set