Can anyone help me understand how to construct an oData query on a HANA based service so that I can query records where the field value is null? I am attempting the following, but get an error message indicating that 'null' literal is not supported by this service.
/test/data/analyticView?$select=SalesOrg,ProductLine,Revenue&$filter=ProductLine eq null&$format=json
{ error: { code: "", message: { lang: "en-US", value: "Literal 'null' not supported by this service." } } }
There is revenue data against null values for ProductLine. I can see the data when querying all ProductLines. I can also filter on any specific product line, but not the case where product line is null.