The EXTFNAPIV4_DESCRIBE_PARM_DISTINCT_VALUES attribute returns the number of distinct values. Using this attribute in a describe_parameter_set scenario returns an error.
a_v4_extfn_estimate
Returns the estimated number of distinct values across all invocations. valid only for scalar parameters.
This is a read-only property.
This is a read-only property; all attempts to set result in an EXTFNAPIV4_DESCRIBE_INVALID_ATTRIBUTE error.
Not applicable.