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https://issues.apache.org/jira/browse/IMPALA-14596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18088526#comment-18088526
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Aleksandr Efimov commented on IMPALA-14596:
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Thanks [~stigahuang]! I’ll start IMPALA-15097 first. I’ll also keep
IMPALA-15096 in mind as a possible follow-up profile-related task.
> History Based Optimizer
> -----------------------
>
> Key: IMPALA-14596
> URL: https://issues.apache.org/jira/browse/IMPALA-14596
> Project: IMPALA
> Issue Type: Epic
> Components: Backend, Frontend
> Reporter: Quanlong Huang
> Assignee: Quanlong Huang
> Priority: Critical
>
> Impala has detailed query profiles which help users to fine-tune the queries
> (using query options or query hints). These infomation can actually be used
> by Impala itself in planning new queries, e.g. fixing wrong estimation, bad
> join order, useless runtime filters, etc.
> This Epic tracks the work of adding History Based Optimizer for Impala.
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