Leveling Rules for Expressions

The following productions for <value_expression_primary> are optional:

1. The ability to qualify <tuple>[.VALUE] by <cube_name> in a value expression primary is optional. Consumers can check the value of the property MDPROP_MDX_OUTERREFERENCE to see whether a provider supports this feature.
   
   
2. <property>[.VALUE]. Consumers can check the value of the property MDPROP_MDX_QUERYBYPROPERTY to see whether a provider supports this feature.
   
   
3. <simple_case>, <searched_case>. Consumers can check the value of the property MDPROP_MDX_CASESUPPORT to see whether a provider supports this feature.