Hi, This is a pandas bug, not an sqlalchemy ones. It was already reported here https://github.com/pandas-dev/pandas/issues/40682
On Tuesday, 31 August 2021 at 23:15:04 UTC+2 Gord Thompson wrote: > *With version 1.3:* > > Base = declarative_base() > > > class User(Base): > __tablename__ = "user" > id = Column(Integer, primary_key=True) > name = Column(String) > > > Base.metadata.create_all(engine) > > print(pd.__version__) # 1.3.2 > print(sa.__version__) # 1.3.24 > > session = Session(engine) > session.add_all([User(name="Gord"),User(name="Bob"),]) > session.commit() > result_set = session.query(User.id, User.name) > df = pd.DataFrame(result_set) > print(df) > """ > id name > 0 1 Gord > 1 2 Bob > """ > > *With version 1.4:* > > print(pd.__version__) # 1.3.2 > print(sa.__version__) *# 1.4.23* > > session = Session(engine) > session.add_all([User(name="Gord"),User(name="Bob"),]) > session.commit() > result_set = session.query(User.id, User.name) > df = pd.DataFrame(result_set) > print(df) > """ > 0 1 > 0 1 Gord > 1 2 Bob > """ > > On Tuesday, August 31, 2021 at 2:38:18 PM UTC-6 Mike Bayer wrote: > >> >> >> On Tue, Aug 31, 2021, at 3:10 PM, Terrence-Monroe: Brannon wrote: >> >> >> Creating a pandas dataframe that contained descriptive column names >> formerly was as easy as: >> >> result_set = session.query(cls.column_1) >> df = pandas.Dataframe(result_set) >> print df.column_1 >> >> but while this works in 1.3.20, in later versions of SA such as 1.4.19, >> there is not enough column info supplied by SA to form the same symbolic >> column names. Thus, the above code would fail when attempting to access >> df.column_1 in SA 1.4.19 but not fail in SA 1.3.20. >> >> >> >> not familiar with this change, nothing should have changed with how >> session.query() returns rows and this may be some incompatibility with >> pandas. Upgrade to the latest Pandas and make sure the behavior remains, >> then please provide an MCVE, thanks >> >> >> >> >> >> Anyway to supply a flag to query() to provide the extra column that >> existed in older SA versions? >> >> >> -- >> SQLAlchemy - >> The Python SQL Toolkit and Object Relational Mapper >> >> http://www.sqlalchemy.org/ >> >> To post example code, please provide an MCVE: Minimal, Complete, and >> Verifiable Example. See http://stackoverflow.com/help/mcve for a full >> description. >> --- >> You received this message because you are subscribed to the Google Groups >> "sqlalchemy" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sqlalchemy+...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/sqlalchemy/2664002d-25cc-450d-bc51-8652a7df3d53n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/sqlalchemy/2664002d-25cc-450d-bc51-8652a7df3d53n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> >> -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/8f9f708d-e1e6-4c3a-897c-d545e6fc37e0n%40googlegroups.com.
