Question

I have

var query =
        from Dev device
        in storage.QueryEntities<Dev>("dev")
        where device.PartitionKey == "1"
        select device;

I only want some of the columns from the table. Doing

var query =
        from Dev device
        in storage.QueryEntities<Dev>("dev")
        where device.PartitionKey == "1"
        select new {device.ID, device.Model};

Doesnt work: emits the field names as part of the REST query ($select=ID,Model) and azure returns ‘InvalidInput’

Answer 1

See http://msdn.microsoft.com/en-us/library/dd135725.aspx

Select – not supported – All properties of an entity are retrieved on any read operation. Projection is not supported.

So you simply can’t do this projection at the table interface level – you have to select all the fields