adjacent_bigintspan_bigint adjacent_floatspan_float adjacent_intspan_int adjacent_period_timestamp adjacent_span_span adjacent_span_value after_period_timestamp after_timestamp_period bbox_union_span_span before_period_timestamp before_timestamp_period contained_bigint_bigintspan contained_float_floatspan contained_int_intspan contained_span_span contained_timestamp_period contained_value_span contains_bigintspan_bigint contains_floatspan_float contains_intspan_int contains_period_timestamp contains_span_span contains_span_value distance_bigintspan_bigint distance_floatspan_float distance_intspan_int distance_period_timestamp distance_span_span distance_span_value distance_value_value inter_span_span intersection_bigintspan_bigint intersection_floatspan_float intersection_intspan_int intersection_period_timestamp intersection_span_span intersection_span_value left_bigint_bigintspan left_bigintspan_bigint left_float_floatspan left_floatspan_float left_int_intspan left_intspan_int left_span_span left_span_value left_value_span minus_bigint_bigintspan minus_bigintspan_bigint minus_float_floatspan minus_floatspan_float minus_int_intspan minus_intspan_int minus_period_timestamp minus_span_span minus_span_span1 minus_span_value minus_span_value1 minus_timestamp_period minus_value_span overafter_period_timestamp overafter_timestamp_period overbefore_period_timestamp overbefore_timestamp_period overlaps_span_span overleft_bigint_bigintspan overleft_bigintspan_bigint overleft_float_floatspan overleft_floatspan_float overleft_int_intspan overleft_intspan_int overleft_span_span overleft_span_value overleft_value_span overright_bigint_bigintspan overright_bigintspan_bigint overright_float_floatspan overright_floatspan_float overright_int_intspan overright_intspan_int overright_span_span overright_span_value overright_value_span right_bigint_bigintspan right_bigintspan_bigint right_float_floatspan right_floatspan_float right_int_intspan right_intspan_int right_span_span right_span_value right_value_span span_value_max span_value_min union_bigintspan_bigint union_floatspan_float union_intspan_int union_period_timestamp union_span_span union_span_value

span_value_max() Datum span_value_max ( Datum  l, Datum  r, meosType  type  ) Return the minimum value of two span base values. xx