<xs:simpleType name="IndexDirection">
  <xs:annotation>
    <xs:documentation>Specifies the direction of the index, whether decreasing or increasing.</xs:documentation>
  </xs:annotation>
  <xs:restriction base="eml:TypeEnum">
    <xs:enumeration value="decreasing">
      <xs:annotation>
        <xs:documentation>The sort order of the data row index values. For a "decreasing" direction, the index value of consecutive data nodes are descending.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="increasing">
      <xs:annotation>
        <xs:documentation>The sort order of the data row index values. For an "increasing" direction, the index value of consecutive data nodes are ascending.</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>