例:
from sqlalchemy.dialects import mysql
from sqlalchemy import Integer, Column, update, insert
from sqlalchemy.ext.declarative import declarative_base
Base = declarative_base()
class Test(Base):
__tablename__ = "test"
a = Column(Integer, primary_key=True)
b = Column(Integer)
update_stmt = update(Test).where(Test.a == 1).values(b=2)
print update_stmt.compile(dialect=mysql.dialect(), compile_kwargs= {"literal_binds": True})
insert_stmt = insert(Test).values(a=1, b=1)
print insert_stmt.compile(dialect=mysql.dialect())
结果是:
UPDATE test SET b=%s WHERE test.a = %s
INSERT INTO test (a, b) VALUES (%s, %s)
问题是如何让sqlalchemy像这样生成smth:
UPDATE test SET b=2 WHERE test.a = 1
INSERT INTO test (a, b) VALUES (1, …