问题描述
我有一个包含创建函数语句的 DDL 对象 (create_function_foo
).在它的第一行我把 DROP FUNCTION IF EXISTS foo;
但 engine.execute(create_function_foo)
返回:
I have a DDL object (create_function_foo
) that contains a create function statement. In first line of it I put DROP FUNCTION IF EXISTS foo;
but engine.execute(create_function_foo)
returns:
sqlalchemy.exc.InterfaceError: (InterfaceError) Use multi=True when executing multiple statements
我把 multi=True
作为 create_engine
、engine.execute_options
和 engine.execute
的参数,但它不起作用.
I put multi=True
as parameter for create_engine
, engine.execute_options
and engine.execute
but it doesn't work.
注意:engine
如果我的 create_engine
注意:我使用的是 python 3.2 + mysql.connector 1.0.12 + sqlalchemy 0.8.2
NOTE: I'm using python 3.2 + mysql.connector 1.0.12 + sqlalchemy 0.8.2
create_function_foo = DDL("""
DROP FUNCTION IF EXISTS foo;
CREATE FUNCTION `foo`(
SID INT
) RETURNS double
READS SQL DATA
BEGIN
...
END
""")
我应该把它放在哪里?
推荐答案
multi=True
是 MySql 连接器的要求.您不能设置此标志将其传递给 SQLAlchemy 方法.这样做:
multi=True
is a requirement for MySql connector. You can not set this flag passing it to SQLAlchemy methods. Do this:
conn = session.connection().connection
cursor = conn.cursor() # get mysql db-api cursor
cursor.execute(sql, multi=True)
此处的更多信息:http://www.mail-archive.com/sqlalchemy@googlegroups.com/msg30129.html
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