queuep | intelligent queue for NodeJs | Runtime Evironment library
kandi X-RAY | queuep Summary
kandi X-RAY | queuep Summary
None of the similar queue libraries have a concept of avoiding duplicate requests. QueueP filters out redundant requests and allows to process useful data. QueueP internally uses concepts such as memoization, throttling and producer-consumer pattern to provide a premium user experience. QueueP allows you to customize the memoization logic (deciding whether or not to process a data chunk) via the dirty checkers. While you can write the dirty checkers all by yourself, QueueP provides several dirty checker templates which can be quite handy to use.
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QUESTION
I'm trying to get average of last 2 entries from elastic search but stuck in this. below is my data in elastic search:
...ANSWER
Answered 2019-Aug-21 at 07:40You cannot do this in Elasticsearch in a query.
The idea is kind of a two step process:
- first get the maximum date (the latest one), like a MAX aggregation if you'd like
- then get the first two documents "smaller" than this latest date, which is basically a top_hits
aggregation
And you cannot apply an aggregation (the AVG) on the results of a top_hits
. And the same you cannot do if you limit your results to 2 then do the average, because it will match more documents, do the AVG on them then give you only two.
Anyway, in my opinion, the simplest solution is to do
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