schema test {

    document test {

        field title type string {
            indexing: index
        }

    }

    rank-profile in_schema1 {

        first-phase {
            expression: nativeRank
        }

    }

    rank-profile in_schema2 inherits outside_schema2 {

        function f2() {
            expression: fieldMatch(title) + fo2
        }

        first-phase {
            expression: f2
        }

    }

}