notEmpty and empty operations

Hi,

The information at http://www.netsuite.com/portal/partners/integration/WebServicesHelp/Output/wwhelp/wwhimpl/js/html/wwhelp.htm regarding platform enumerations (Search Table 1 and 2) make me think that the empty and notEmpty operations only work for long, double and date search field types.

However, v2.0 of the WSDL includes the following:

<simpleType name="SearchStringFieldOperator">
  <restriction base="xsd:string">
   <enumeration value="contains"/>
   <enumeration value="doesNotContain"/>
   <enumeration value="doesNotStartWith"/>
   <enumeration value="empty"/>
   <enumeration value="is"/>
   <enumeration value="isNot"/>
   <enumeration value="notEmpty"/>
   <enumeration value="startsWith"/>