Django Book 翻译
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原文:
Perhaps, for instance, your site includes a view whose results depend on several expensive queries, the results of which change at different intervals. In this case, it would not be ideal to use the full-page caching that the per-site or per-view cache strategies offer, because you wouldnt want to cache the entire result (since some of the data changes often), but youd still want to cache the results that rarely change.
翻译:
比如说，也许你的站点所包含的一个视图依赖几个费时的查询，每隔一段时间结果就会发生变化。在这种情况下，使用站点级缓存或者视图级缓存策略所提供的整页缓存并不是最理想的，因为你可能不会想对整个结果进行缓存（因为一些数据经常变化），但你仍然会想对很少变化的部分进行缓存。
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