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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/07/02 15:25:27 UTC
[GitHub] [arrow-datafusion] NGA-TRAN opened a new issue #655: Improve performance of SortPreservingMergeExec
NGA-TRAN opened a new issue #655:
URL: https://github.com/apache/arrow-datafusion/issues/655
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
Why doing experience in IOx, we have discovered that `SortPreservingMergeExec` is expensive and very CPU bound. [The issues are fully described here](https://github.com/influxdata/influxdb_iox/issues/1885)
**Describe the solution you'd like**
The SortPreservingMergeExec is known the be sub-optimal when it was implemented and at least 3 improvements have been identified inside the code. This ticket is to improve those and further if any.
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[GitHub] [arrow-datafusion] alamb commented on issue #655: Improve performance of SortPreservingMergeExec
Posted by GitBox <gi...@apache.org>.
alamb commented on issue #655:
URL: https://github.com/apache/arrow-datafusion/issues/655#issuecomment-873258103
I believe @e-dard has plans to look into this ticket
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[GitHub] [arrow-datafusion] alamb closed issue #655: Improve performance of SortPreservingMergeExec
Posted by GitBox <gi...@apache.org>.
alamb closed issue #655:
URL: https://github.com/apache/arrow-datafusion/issues/655
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[GitHub] [arrow-datafusion] alamb closed issue #655: Improve performance of SortPreservingMergeExec
Posted by GitBox <gi...@apache.org>.
alamb closed issue #655:
URL: https://github.com/apache/arrow-datafusion/issues/655
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[GitHub] [arrow-datafusion] alamb closed issue #655: Improve performance of SortPreservingMergeExec
Posted by GitBox <gi...@apache.org>.
alamb closed issue #655:
URL: https://github.com/apache/arrow-datafusion/issues/655
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