Allows disambiguating documents having the same score, on a configurable key. The rest of the comparator configuration is similar to the primary sort. If this option is enabled, the documents will be compared by score, and in case of equality, only by the key extracted from the configurable index field.

Index field on which we want to sort. You can only sort on an unsigned index field.

Inverse the total order relation.

Least Significant Bit of the key inside the field.

Most Significant Bit of the key inside the field.

Should one of the keys be considered as excluded from the set and always put at the end

If hasInvalidValue is true, what is the invalid value?