Add sort optimization with after from Lucene #77615
Merged
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Lucene 8.7 introduces numeric sort optimization directly in comparators.
This means we don't need to have it in ES.
This removes the sort optimization code in ES, and
the only thing that is needed is setCanUsePoints on sortField.
This also will introduce sort optimization with search_after,
as Lucene directly supports sort optimization with search_after.
As previously, we enable sort optimization only when there is
Long sort on Long or Date fields.
There could be a regression on desc sort, for example on
@timestamp desc field. In this case, we suggest to
convert these indices to data stream indices, as
datatastream indices have their desc sort on
@timestamp field optimized
Backport for #64292