I have a requirement to connect to hive server and load the data into teradata but I am facing the below error    Code snippet from __future__ import generators import numpy as np import pandas def ResultIterator(cursor, arraysize=1000😞     'iterator using fetchmany and consumes less memory'     while True:         results = cursor.fetchmany(arraysize)                 if not results:             break         for result in results:             yield result   conn = pyodbc.connect('DSN=AzureProdDDEP',autocommit=True) curs = conn.cursor() curs.execute(sql) data = [] for result in ResultIterator(curs😞      data.append(result)   But getting the below error --------------------------------------------------------------------------- Error Traceback (most recent call last) <ipython-input-14-bfdfc82db1c5> in <module> 5 data = [] 6 ----> 7 for result in ResultIterator(curs): 8 data.append(result) 9 <ipython-input-11-d227f5c5bd31> in ResultIterator(cursor, arraysize) 8 'iterator using fetchmany and consumes less memory' 9 while True: ---> 10 results = cursor.fetchmany(arraysize) 11 12 if not results: Error: ('HY000', "[HY000] [Hortonworks][Hardy] (35) Error from server: error code: '0' error message: 'Invalid OperationHandle: OperationHandle [opType=EXECUTE_STATEMENT, getHandleIdentifier()=4e9ad9dd-6580-47bb-9f87-8a7721320962]'. (35) (SQLFetch)") ... View more