Lifetimes should be associated with individual cache entries

[arunkiyengar]

Currently, time to live, ttlSeconds, is the same for all entries in a cache. There is no way to assign different lifetimes to different cache entries.

Time to live should be associated with individual cache entries. It should be possible to associate different lifetimes to different entries in the same cache. For example, a user should be able to assign a shorter lifetime to a cache entry corresponding to a query about current stock market conditions than a query corresponding to stock market returns from the 1970s.

[rootfs]

@arunkiyengar thanks for opening this issue!

@aeft is working on cache management at the moment. It would be great if we can come up with a design to address this use case.

[aeft]

Yes. For some precision-sensitive queries, it may be necessary to consider disabling the cache. One example is mathematical calculations, where two queries that differ by only one number can produce completely different results.