Hello George,
Yes. U need to operate on BATCH for READ/QUERY operation.
How To Batch Multiple Operations Into A Single Request
Create an Entity which will be containing all the fields of your structure which u want to send as input structure.
Create a Complex Type which would a structure of that table type which u would like to send as input table.
Use this complex type inside the Entity containing all the fields of your structure which u want to send as input structure.
U cannot send all the table of inputs in one go for READ/QUERY operations.
You need to BATCH it in a payload and send.
The above modelling i have suggested to keep your structure fields and table fields separate so that they will not be mixed up and its easy to extract in DPC as well
Regards,
Ashwin