google app engine - Fastest way to check if an object exists -


I'm using GAE / Java with Objective, and I find the fastest way to check an object Trying to be present in thestore, the key given is what I am doing now, with .get with @ cached , but the way the whole thing is still , Which is unnecessary.

Any ideas on how to do this with an index only hit? I was thinking about only one key, but I am seeing that latency is greater than found

Any ideas on how to do this with an index hit? I was thinking about a key only the query

A key only query is an index only the way to get hit, is faster than receiving it, the size of your unit and your Depends on the size of the index. In a trivial example, I get one for a query and is getting approximately 8ms for 13ms. You can use apps to find out if it's cheap for you with real data.


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