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https://issues.apache.org/jira/browse/PHOENIX-4926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16627717#comment-16627717
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Bin Shi commented on PHOENIX-4926:
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[~lhofhansl],
Hi Lars, based on our internal discussions and the discussions on PHOENIX-4594,
I opened this Jira.
> Disentangle the guidepost data from the actually materialized scans
> -------------------------------------------------------------------
>
> Key: PHOENIX-4926
> URL: https://issues.apache.org/jira/browse/PHOENIX-4926
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Bin Shi
> Assignee: Bin Shi
> Priority: Major
>
> Currently, when we enable stats for intra-region read parallelization, the
> granularity of guide posts is the same as the granularity of parallel scans,
> which blocks us from using smaller guide posts in query complexity estimation
> and query optimization for better accuracy.
> We can define the target intra-region parallelism so that a scan is an
> integral multiple of the defined GUIDE_POSTS_WIDTH value and its value is
> between [1, the number of threads in thread pool or PRC handlers on Region
> server].
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