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https://issues.apache.org/jira/browse/HIVE-24357?focusedWorklogId=509846&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-509846
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ASF GitHub Bot logged work on HIVE-24357:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 10/Nov/20 17:37
Start Date: 10/Nov/20 17:37
Worklog Time Spent: 10m
Work Description: kgyrtkirk commented on pull request #1653:
URL: https://github.com/apache/hive/pull/1653#issuecomment-724856174
@jcamachor Could you please take a look?
Right now I'm waiting for the "final" test results - I expect at most qtest
diffs like `A and A` simplified to `A`.
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Issue Time Tracking
-------------------
Worklog Id: (was: 509846)
Time Spent: 0.5h (was: 20m)
> Exchange SWO table/algorithm strategy
> -------------------------------------
>
> Key: HIVE-24357
> URL: https://issues.apache.org/jira/browse/HIVE-24357
> Project: Hive
> Issue Type: Improvement
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Labels: pull-request-available
> Attachments: swo.before.jointree.dot.png
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> SWO right now runs like:
> {code}
> for every strategy s: for every table t: try s for t
> {code}
> this results in that an earlier startegy may create a more entangled operator
> tree behind - in case its able to merge for a less prioritized table
> it would probably make more sense to do:
> {code}
> for every table t: for every strategy s: try s for t
> {code}
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