On 01/06/2017 10:26 AM, Dale Henrichs wrote: > > > > On 01/06/2017 07:21 AM, BrunoBB via Glass wrote: >> Or use: aGsQuery readStream position: 20. > The BtreeReadStreams are not PositionableStreams, so you can use position: The BtreeReadStreams are not PositionableStreams, so you _cannot_ use position: