FutureWarning in raw_sql()

[cc8734]

The following code produces the following FutureWarning, is this an issue?

crsp_m = conn.raw_sql("""
                      select *
                      from crsp.msf_v2 
                      where mthcaldt between '01/01/1970' and '12/31/2017'
                      and sharetype = 'NS'
                      and securitytype = 'EQTY'
                      and securitysubtype = 'COM'
                      and usincflg = 'Y'
                      and (issuertype = 'ACOR' or issuertype = 'CORP')
                      """, date_cols = ['mthcaldt']) 

The warning msg:

/usr/local/sas/jupyterhub/prod/venvs/20240522/lib/python3.11/site-packages/wrds/sql.py:580: FutureWarning: The behavior of DataFrame concatenation with empty or all-NA entries is deprecated. In a future version, this will no longer exclude empty or all-NA columns when determining the result dtypes. To retain the old behavior, exclude the relevant entries before the concat operation.
full_df = pd.concat([full_df, chunk])

Feel free to reach out with any questions!
Cara Cuiule