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https://issues.apache.org/jira/browse/IMPALA-14596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18088441#comment-18088441
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Quanlong Huang commented on IMPALA-14596:
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Hi [~alexandrefimov], thanks for looking into these!
For IMPALA-14941, I have a patch that is in Draft mode so it's invisible to
you. I'll publish it later.
For IMPALA-15037 and IMPALA-14846, they need to wait until the initial HBO
support patch is merged: [https://gerrit.cloudera.org/c/24153/]
If you have interests in profile related works, I recently filed an issue for
our profile parsing script: IMPALA-15097
It'd be cool if we can revive the plan-graph.py script and make it mature.
IMPALA-15096 is another profile issue that you might have interests.
> 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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