distance_bigintset_bigint distance_bigintspan_bigint distance_bigintspanset_bigint distance_floatset_float distance_floatspan_float distance_floatspanset_float distance_intset_int distance_intspan_int distance_intspanset_int distance_period_timestamp distance_periodset_timestamp distance_set_set distance_span_span distance_spanset_span distance_spanset_spanset distance_textset_text distance_timestampset_timestamp

distance_textset_text() double distance_textset_text ( const Set *  s, const text *  txt  ) Return the distance between a set and a value. SQL Operator: <->