ProcessModel Error

An error occurred while evaluating expression: workflowDetails:rule!CNAM_GC_qeForAllTables(Flag:"WorkflowbyWorkFlowId",
wfid:pv!workflowDetails.workflw_id) (Expression evaluation error in rule 'cnam_gc_qeforalltables' at function a!queryEntity [line 254]: An error occurred while retrieving the data. Details: Memory threshold reached during output conversion (rule: [queryentity expression], type: [CNAMGCWORKFLOWDT41204], threshold: [1,048,576 bytes], objects successfully converted: [12,000])) (Data Outputs)