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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/10/15 20:27:06 UTC
[GitHub] [arrow-datafusion] Dandandan opened a new issue, #3845: Implement statistics estimation for `FilterExec`
Dandandan opened a new issue, #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
@isidentical implemented more statistics-rules for joins. When a `FilterExec` is between a `TableScan` however, we do not return a join estimation yet.
**Describe the solution you'd like**
We should provide an estimation based on the filterexpressions and statistics information that we have.
**Describe alternatives you've considered**
**Additional context**
Add any other context or screenshots about the feature request here.
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[GitHub] [arrow-datafusion] mingmwang commented on issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
mingmwang commented on issue #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845#issuecomment-1294522292
@alamb Thanks, I will go through all the tickets and take a closer look at the current code base , I can help working on some
of the open tasks.
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[GitHub] [arrow-datafusion] isidentical commented on issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
isidentical commented on issue #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845#issuecomment-1279827014
This was next on my list, so I'd be happy to work on it!
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[GitHub] [arrow-datafusion] alamb commented on issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
alamb commented on issue #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845#issuecomment-1287760299
I think @isidentical started a discussion on https://github.com/apache/arrow-datafusion/issues/3898 -- @mingmwang could you take a look? Perhaps it would be time to start socializing that ticket more broadly (I could send some email / slack messages to bring it to the community's attention)
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[GitHub] [arrow-datafusion] mingmwang commented on issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
mingmwang commented on issue #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845#issuecomment-1281758966
@Dandandan I see there are couple of stats related issues opening, is there an umbrella task/task lists? Or maybe we can tag all related issue as CBOStats ?
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[GitHub] [arrow-datafusion] Dandandan commented on issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
Dandandan commented on issue #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845#issuecomment-1279827246
I would be very interested to see if we're getting any changes in TCP-H queries after this.
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[GitHub] [arrow-datafusion] isidentical commented on issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
isidentical commented on issue #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845#issuecomment-1279827722
Will be sure to include some benchmarks 👍🏻
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[GitHub] [arrow-datafusion] alamb closed issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
alamb closed issue #3845: Implement statistics estimation for `FilterExec`
URL: https://github.com/apache/arrow-datafusion/issues/3845
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[GitHub] [arrow-datafusion] Dandandan commented on issue #3845: Implement statistics estimation for `FilterExec`
Posted by GitBox <gi...@apache.org>.
Dandandan commented on issue #3845:
URL: https://github.com/apache/arrow-datafusion/issues/3845#issuecomment-1279827123
Awesome @isidentical I assigned you on this issue!
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