/C/Using PostgreSQL array to store many-to-many relationship using sqlalchemy

Using PostgreSQL array to store many-to-many relationship using sqlalchemy

class A(Base):
    __tablename__ = "table_a"
    id = Column(Integer, primary_key=True)
    name = Column(String)

class B(Base):
    __tablename__ = "table_b"
    id = Column(Integer, primary_key=True)
    name = Column(String)
    array_a = Column(postgresql.ARRAY(Integer))

    a_ids= relationship('A',primaryjoin='A.id == any_(foreign(B.array_a))',uselist=True)

Source: stackoverflow.com

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