ok, tks.
so I must re-edit the migrations file?
在 2018年7月24日星期二 UTC+8上午2:06:06，Mike Bayer写道：
>
> On Mon, Jul 23, 2018 at 1:57 PM, Yingchen Zhang <cevin....@gmail.com
> <javascript:>> wrote:
> > class User(db.Model):
> > __tablename__ = 'users'
> > id = db.Column(db.BigInteger, primary_key=True)
> > name = db.Column(db.VARCHAR(50), nullable=False, unique=True)
> > email = db.Column(db.VARCHAR(200), nullable=False)
> >
> > mobile = db.Column(db.VARCHAR(20))
> >
> > created_at = db.Column(db.TIMESTAMP(False), nullable=False,
> > default=func.now())
> >
> > __table_args__ = (
> > Index('idx_users_name', func.lower('name'), unique=True),
> > Index('idx_users_email', func.lower('email'), unique=True)
> > )
> >
> > def __init__(self):
> > if not self.created_at:
> > self.created_at = now()
> >
> > def __repr__(self):
> > return '<User %s>' % self.name
> >
> >
> > got a warning:
> >
> > UserWarning: autogenerate skipping functional index idx_users_email; not
> > supported by SQLAlchemy reflection warnings.warn(msg)
> > UserWarning: autogenerate skipping functional index idx_users_name; not
> > supported by SQLAlchemy reflection warnings.warn(msg)
>
>
> your code is correct. it sounds like you are attempting to use
> autogenerate in Alembic to add these indexes in a new migration. you
> have to specify them manually because autogenerate does not support
> function-based indexes (e.g. the lower() function).
>
>
> >
> >
> > --
> > SQLAlchemy -
> > The Python SQL Toolkit and Object Relational Mapper
> >
> > http://www.sqlalchemy.org/
> >
> > To post example code, please provide an MCVE: Minimal, Complete, and
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--
SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
To post example code, please provide an MCVE: Minimal, Complete, and Verifiable
Example. See http://stackoverflow.com/help/mcve for a full description.
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