pyodps 在查询一个SQL语句时，如果查询字段是以0开头的字符串，就会报错！！

部分语句如下：

with o.execute_sql("select * from table_name where a='01234556'").open_reader() as reader:
for record in reader:   
     print(record)

报错内容如下：

Traceback (most recent call last): File "D:/Python36/odps/venv/dataworks/odps111.py", line 42, in for record in reader: File "D:\Python36\odps\venv\lib\site-packages\odps\models\instance.py", line 823, in iter for record in self.read(): File "D:\Python36\odps\venv\lib\site-packages\odps\models\instance.py", line 846, in read for record in reader[::step]: File "D:\Python36\odps\venv\lib\site-packages\odps\readers.py", line 88, in _iter record = next(self) File "D:\Python36\odps\venv\lib\site-packages\odps\tunnel\io\reader.py", line 206, in next record = self.read() File "D:\Python36\odps\venv\lib\site-packages\odps\tunnel\io\reader.py", line 200, in read record[i] = self._read_field(self._columns[i].type) File "D:\Python36\odps\venv\lib\site-packages\odps\types.py", line 447, in setitem self._set(key, value) File "D:\Python36\odps\venv\lib\site-packages\odps\types.py", line 423, in _set val = validate_value(value, data_type) File "D:\Python36\odps\venv\lib\site-packages\odps\types.py", line 1454, in validate_value res = data_type.validate_composite_values(value) File "D:\Python36\odps\venv\lib\site-packages\odps\types.py", line 1087, in validate_composite_values self.validate_value(value) File "D:\Python36\odps\venv\lib\site-packages\odps\types.py", line 1058, in validate_value scaled_val = val.quantize(to_scale, _decimal.ROUND_HALF_UP) decimal.InvalidOperation: [<class 'decimal.InvalidOperation'>]

Process finished with exit code 1