我有一些关键之处,我想知道的唯一一点是,在数据库中是否有一个相应的实体。 目前我做的是:
entities = db.get(keys)
for entity in entities:
if entity:
# some stuff
else:
# some other stuff
在这项工作中,我只需要一个 b子,而不是一个 en子。 是否有办法使这一比法更为便宜?
我有一些关键之处,我想知道的唯一一点是,在数据库中是否有一个相应的实体。 目前我做的是:
entities = db.get(keys)
for entity in entities:
if entity:
# some stuff
else:
# some other stuff
在这项工作中,我只需要一个 b子,而不是一个 en子。 是否有办法使这一比法更为便宜?
比较你现在利用只限钥匙对钥匙进行单小时查询的速度。 如果有一个明确的赢家,就只处理钥匙,因为成本较低。
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