在Flask DB类上使用SQLalchemy distinct函数

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from sqlalchemy import distinct

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'your_database_uri'
db = SQLAlchemy(app)

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(50))
    email = db.Column(db.String(50))

@app.route('/')
def get_unique_emails():
    unique_emails = db.session.query(distinct(User.email)).all()
    return str(unique_emails)