我想记录我想要调试它们的事件中发生的所有查询,或者稍后对它们运行解释计划。
例如:
from sqlalchemy import select
from sqlalchemy.dialect import oracle
queries = {}
# ...
sel = select([foo.c.id, foo.c.bar])
queries['foo query'] = sel.compile(dialect=oracle.dialect(),
compile_kwargs={'literal_binds': True})
results = conn.execute(select)
这总是会输出以下警告:
SAWarning: Textual column expression 'id' should be explicitly declared with text('location'), or use column('location') for more specificity (this warning may be suppressed after 10 occurrences) if guess_is_literal else "column"
有没有办法抑制这些警告?值得注意的是,我只想在记录/打印查询的特定情况下抑制它们,而不是全局抑制。
答案 0 :(得分:0)
您可以在Python 2.7中禁止SQL Alchemy警告消息,如下所示:
import warnings
from sqlalchemy import exc as sa_exc
with warnings.catch_warnings():
warnings.simplefilter("ignore", category=sa_exc.SAWarning)
results = query.execute()