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https://issues.apache.org/jira/browse/KYLIN-5386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17654309#comment-17654309
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ASF GitHub Bot commented on KYLIN-5386:
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xjlem opened a new pull request, #2069:
URL: https://github.com/apache/kylin/pull/2069
## Proposed changes
Describe the big picture of your changes here to communicate to the
maintainers why we should accept this pull request. If it fixes a bug or
resolves a feature request, be sure to link to that issue.
## Branch to commit
- [ ] Branch **kylin3** for v2.x to v3.x
- [ ] Branch **kylin4** for v4.x
- [ ] Branch **kylin5** for v5.x
## Types of changes
What types of changes does your code introduce to Kylin?
_Put an `x` in the boxes that apply_
- [ ] Bugfix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Documentation Update (if none of the other choices apply)
## Checklist
_Put an `x` in the boxes that apply. You can also fill these out after
creating the PR. If you're unsure about any of them, don't hesitate to ask.
We're here to help! This is simply a reminder of what we are going to look for
before merging your code._
- [x] I have created an issue on [Kylin's
jira](https://issues.apache.org/jira/browse/KYLIN), and have described the
bug/feature there in detail
- [x] Commit messages in my PR start with the related jira ID, like
"KYLIN-0000 Make Kylin project open-source"
- [x] Compiling and unit tests pass locally with my changes
- [ ] I have added tests that prove my fix is effective or that my feature
works
- [x] I have added necessary documentation (if appropriate)
- [x] Any dependent changes have been merged
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[email protected] or [email protected] by explaining why you chose the
solution you did and what alternatives you considered, etc...
> 使用Segment元数据完成部分数据过滤加速长时间范围数据查询
> -------------------------------
>
> Key: KYLIN-5386
> URL: https://issues.apache.org/jira/browse/KYLIN-5386
> Project: Kylin
> Issue Type: New Feature
> Components: Query Engine
> Affects Versions: v4.0.3
> Reporter: xjlem
> Priority: Major
> Attachments: KYLIN-5386.v4.0.3-release.001.patch
>
>
> Query中分区字段影响segement过滤，为此查询中会带上分区字段作限制，但分区字段将会影响cuboid选择，使得cuboid始终是天粒度。为此我们使用segment的元数据信息满足查询的过滤，可以通过segment元数据进行过滤的部分将使用更粗粒度的cuboid进行聚合查询。
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