On 9/10/19, Adrian Klaver <adrian.klaver@xxxxxxxxxxx> wrote: > If there is no rhyme or reason to the metadata I am not sure how you > could come up with an efficient search strategy. Seems it would be a > brute search over everything. Not exactly. Say some things have colours but now weight. You could still Group them as being "weighty" and then tell about how heavy they are, with the colorful ones you could specify the colours and then see if there is some correlation between weights and colours ... lbrtchx