How to create such a filter?

Question

Android

Good afternoon! How to create a filter on an array of values?
to:
0: "fjq8oz-ZMZM:APA91bF-9TJxmVRoE21jJFV96M5Tevja4C1..."
1: "crXobleBbIE:APA91bFmU_R0xZrfHvYdai1w33zSIbOKJ7y..."
2:
3: ........... etc.
Query queryToTokenId = databaseRef.orderByChild("to").equalTo(token); // how to do it right here to iterate over all values ​​from the array of tokens??

Answer 1

Look towards intersections of sets. The in operator in sqlite, if I understood the question correctly.