I am using SQLAlchemy and I want to end up with a query like
select state_voter_id, last_name, first_name from voter
where
state_voter_id in (select state_voter_id from vote
where vote_date = '2000-02-23' and
party_voted = 'D')
and state_voter_id not in (select state_voter_id from vote
where vote_date = '2004-02-21' and
party_voted = 'D')
against two tables sharing the state_voter_id foreign key:
voter (state_voter_id, last_name, first_name)
vote (state_voter_id, vote_date, party_voted)
There doesn't seem to be a "notin_" similar to "in_" that lets me do
this:
voter_db.session.query(Voter).filter(
and_(Voter.state_voter_id.in_(select([Vote.state_voter_id],
and_(Vote.vote_date=='2006-09-19',
Vote.party_voted == 'D'))),
Voter.state_voter_id.notin_(select([Vote.state_voter_id],
and_(Vote.vote_date=='2004-09-14',
Vote.party_voted ==
'D')))))
Any suggestions?
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