Column names are converted to lowercase

All column names, irrespective of their casing in the Snowflake database, seem to be converted to lower-case.

1. What version of Python are you using (python --version)?

3.7.3

1. What operating system and processor architecture are you using (python -c 'import platform; print(platform.platform())')?

Linux-4.15.0-1060-aws-x86_64-with-debian-buster-sid

1. What are the component versions in the environment (pip list)?

pandas                          0.25.3
snowflake-connector-python       2.1.3
snowflake-sqlalchemy             1.2.0

1. What did you do?

import sqlalchemy as sa
from snowflake.sqlalchemy import URL

engine = db.create_engine(URL(...))

res = engine.execute('''
SELECT
NULL::TEXT AS COL1,
NULL::TEXT AS "col2",
NULL::TEXT AS "COL3"
''')
row = res.fetchone()
row.keys()

1. What did you expect to see?

['COL', 'col2', 'COL3']

(which is the column names I get when I grab the query result using the Snowflake Connector’s fetch_pandas_all().

1. What did you see instead?

['col1', 'col2', 'col3']

[fflakito]

+1! I’d be very much interested in seeing a fix for this.

[patrickhowerter]

@keller00 @sfc-gh-abhatnagar Do you think you can assign this to someone else that works on the project? It’s a pretty difficult bug to work around.