Optimize composite aggregation based on index sorting (#48399)#50272
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jimczi merged 1 commit intoelastic:7.xfrom Dec 20, 2019
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Optimize composite aggregation based on index sorting (#48399)#50272jimczi merged 1 commit intoelastic:7.xfrom
jimczi merged 1 commit intoelastic:7.xfrom
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Co-authored-by: Daniel Huang <danielhuang@tencent.com> This is a spinoff of elastic#48130 that generalizes the proposal to allow early termination with the composite aggregation when leading sources match a prefix or the entire index sort specification. In such case the composite aggregation can use the index sort natural order to early terminate the collection when it reaches a composite key that is greater than the bottom of the queue. The optimization is also applicable when a query other than match_all is provided. However the optimization is deactivated for sources that match the index sort in the following cases: * Multi-valued source, in such case early termination is not possible. * missing_bucket is set to true
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This commit adapts the version checks of the InternalComposite serialization after the backport of elastic#50272. Note that this pr disables bwc tests since elastic#50272 is not merged yet.
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This commit adapts the version checks of the InternalComposite serialization after the backport of elastic#50272. Note that this pr disables bwc tests since elastic#50272 is not merged yet.
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Backport of #48399