Expire Data from Collections Using TTL and Capped Collections about mongodbcache HOT 3 CLOSED

You can specify a TTL index with an expireAfterSeconds set to 0 which would allow you to specify the expire time in the document using a date field. https://www.mongodb.com/docs/manual/tutorial/expire-data/#expire-documents-at-a-specific-clock-time

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TTL relies on indexes, and a different expiration implies creating a new index.

Capped collections cannot be used for (at least) two reasons:

• they do not allow deletes (nor modifications, given that you cannot alter the size of the doc)
• they may remove cached items in an unpredicable way

:-)

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Thanks @a146518, I didn't notice it.
I think that this could be easily implemented, but right now I have limited time. What about opening a pull request?

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