select 查询中列的特定顺序使用 pandas 和 ZF3D386AADEEB6063D016EDFEE44 得到空 output

Question

import pandas as pd
from sqlalchemy import create_engine
engine = create_engine('mysql+mysqlconnector:// ....., echo=False)

Case 1:

pd.read_sql("select col2, col1 from t1", engine)

not_empty_result

Case 2:

pd.read_sql("select col1, col2 from t1", engine) // changed order of columns

empty_result

The output is empty. How does order of columns influence the final result? I am using pandas v0.24.2, SQLAlchemy v1.2.11, MySQL v5.7.26. It works properly from MySQL prompt.

Answer 1

Thank you Gord, it worked with PyMySQL.