Sqlalchemy 使用 arrays 搜索 JSONB 列且没有键

Question

I'm trying to filter a JSONB column in flask-sqlalchemy and am having trouble:

class Journal(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    synonyms = db.Column(JSONB)

j = Journal(synonyms=['red', 'blue'])
db.session.add(j)
db.session.commit()

records = Journal.query.filter(Journal.synonyms.contains('red')).all()

I get the error: sqlalchemy.exc.InternalError: (psycopg2.errors.InFailedSqlTransaction) current transaction is aborted, commands ignored until end of transaction block

Any idea what I am doing wrong?

Answer 1

I figured out the correct query for this. It is:

import json
records = Journal.query.filter(Journal.synonyms.contains(json.dumps('red'))).all()