Expand segment sorter for all timeseries indices#78713
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mayya-sharipova merged 2 commits intoelastic:7.xfrom Oct 5, 2021
Merged
Expand segment sorter for all timeseries indices#78713mayya-sharipova merged 2 commits intoelastic:7.xfrom
mayya-sharipova merged 2 commits intoelastic:7.xfrom
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PR elastic#75195 added segment sorter on @timestamp desc for datastream indices. This PR applies segment sorter to all indices that have @timestamp field. The presence of @timestamp field can serve as a strong indication that we are dealing with timeseries indices. The most common type of query for timeseries indices is to get the latest data, that is data sorted by @timestamp desc. This PR sorts segments by @timestamp desc which allows to speed up this kind of queries. Backport for elastic#78639 Relates to elastic#75195
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PR #75195 added segment sorter on @timestamp desc for datastream indices.
This PR applies segment sorter to all indices that have @timestamp
field.
The presence of @timestamp field can serve as a strong
indication that we are dealing with timeseries indices. The most
common type of query for timeseries indices is to get the latest data,
that is data sorted by @timestamp desc. This PR sorts segments
by @timestamp desc which allows to speed up this kind of queries.
Backport for #78639
Relates to #75195