Unless I am mistaken, that is already the job of the scan query, reducing
the load caused by sorting a query.  There would be no reduction by
limiting the result set.

As I understand it the scan query identifies which shards has results, and
then just starts serving the first results first without any sort. This
continues until the shard has no more results.  ElasticSearch only needs to
track which results it has already sent, and sends the next batch,
unsorted.  This continues until you stop and the scan expires.

On Fri, Apr 3, 2015 at 11:45 AM, Chen Wang <chen.apache.s...@gmail.com>
wrote:

> I was thinking that being able to do limit on ES side can reduce its query
> load.
>
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