Set to true to require that a field match all of the values instead of just one or more of them. This is useful when matching against multi-valued fields such as lists or sets where you want to ensure that all of the values are present in the list or set.
One of exact (default), re, or substring. For string-typed fields, specify re to match by using the values as regular expressions, or specify substring to match by treating the values as substrings to find within the string field.