sqlalchemy查询多列去重，单列去重 distinct

单列去重

#导入distinct
from sqlalchemy import create_engine, Column, String, Integer, func, distinct

s2 = session.query(distinct(Sites.site)).all()

多列去重

s2 = session.query(Sites.site, Sites.aws_sku).distinct(Sites.site, Sites.aws_sku).all()

参考
https://docs.sqlalchemy.org/en/14/orm/query.html