Flask SQLAlchemy query, specify column names
You can use the with_entities() method to restrict which columns you'd like to return in the result. (documentation)
result = SomeModel.query.with_entities(SomeModel.col1, SomeModel.col2)Depending on your requirements, you may also find deferreds useful. They allow you to return the full object but restrict the columns that come over the wire.
session.query().with_entities(SomeModel.col1)is the same as
session.query(SomeModel.col1)for alias, we can use .label()
session.query(SomeModel.col1.label('some alias name'))
You can use load_only function:
from sqlalchemy.orm import load_onlyfields = ['name', 'addr', 'phone', 'url']companies = session.query(SomeModel).options(load_only(*fields)).all()