Intersection_set_set Intersection_set_value Intersection_span_span Intersection_span_spanset Intersection_span_value Intersection_spanset_span Intersection_spanset_spanset Intersection_spanset_value Intersection_value_set Intersection_value_span Intersection_value_spanset Minus_set_set Minus_set_value Minus_span_span Minus_span_spanset Minus_span_value Minus_spanset_span Minus_spanset_spanset Minus_spanset_value Minus_value_set Minus_value_span Minus_value_spanset Union_set_set Union_set_value Union_span_span Union_span_spanset Union_span_value Union_spanset_span Union_spanset_spanset Union_spanset_value Union_value_set Union_value_span Union_value_spanset

Union_span_span() Datum Union_span_span ( PG_FUNCTION_ARGS  ) Return the union of two spans @sqlfn time_union() SQL Operator: +