Python 使用Omnisci和Pymapd引发异常：查询输出缓冲区中的插槽用完

我目前正在使用Omnisci数据库，并且我继续遇到一些问题，其中我得到一个异常，表明数据库在查询输出缓冲区中的插槽已用完。我正在尝试运行以下SQL语句：

DELETE FROM live_data WHERE ROWID NOT IN (SELECT MAX(ROWID) FROM live_data GROUP BY uuid, lane_num);

当表达到大约20000行大小时，我开始抛出异常。有没有不同的处理方法

异常堆栈跟踪

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/pymapd/cursor.py", line 118, in execute
    at_most_n=-1,
  File "/usr/local/lib/python3.7/dist-packages/omnisci/thrift/OmniSci.py", line 1755, in sql_execute
    return self.recv_sql_execute()
  File "/usr/local/lib/python3.7/dist-packages/omnisci/thrift/OmniSci.py", line 1784, in recv_sql_execute
    raise result.e
omnisci.thrift.ttypes.TOmniSciException: TOmniSciException(error_msg='Exception: Ran out of slots in the query output buffer')

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/***/collect/omni.py", line 50, in stream
    self.con.execute(query_str)
  File "/usr/local/lib/python3.7/dist-packages/pymapd/connection.py", line 390, in execute
    return c.execute(operation, parameters=parameters)
  File "/usr/local/lib/python3.7/dist-packages/pymapd/cursor.py", line 121, in execute
    raise _translate_exception(e) from e
pymapd.exceptions.Error: Exception: Ran out of slots in the query output buffer