How to filter query in sqlalchemy by year (datetime column)
python, sqlalchemy
Solution
sqlalchemy.extract('year', model.MyRecord.dfield) == selected_year
For referene: https://docs.sqlalchemy.org/en/13/core/sqlelement.html#sqlalchemy.sql.expression.extract
Problem
I have table in sqlalchemy 0.4 that with types.DateTime column: ``` Column("dfield", types.DateTime, index=True) ``` I want to select records, that has specific year in this column, using model. How to do this? I though it should be done like this: ``` selected_year = 2009 my_session = model.Session() my_query = my_session.query(model.MyRecord).filter(model.dfield.??? == selected_year) # process data in my_query ``` Part with ??? is for me unclear.