code: function MatchEquals (storage, testTables, document) {
    for (const key of storage.keys) {
      const subfilters = storage.fields[key].get(document[key]);
  
      if (subfilters !== undefined) {
        testTables.addMatch(subfilters);
      }
    }
  }
docs: Updates the matched filters according to the provided data
  O(log n) with n the number of values to be tested against document fields
  
  @param {object} storage - content of all conditions to be tested
  @param {object} testTables - test tables to update when a filter matches the document
  @param {object} document