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Optimizing queries with multiple aggregations where one Is aggregating on DISTINCT #1320

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xudong963 opened this issue Nov 17, 2021 · 0 comments
Open

Optimizing queries with multiple aggregations where one Is aggregating on DISTINCT #1320

xudong963 opened this issue Nov 17, 2021 · 0 comments
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enhancement New feature or request

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@xudong963
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Is your feature request related to a problem or challenge? Please describe what you are trying to do.
Inspired by #1315, I think we can also do the optimization.

Describe the solution you'd like
Ref: https://www.qubole.com/blog/presto-optimizes-aggregations-over-distinct-values/

Describe alternatives you've considered
No

Additional context
Related PR: #1315
@xudong963 xudong963 added the enhancement New feature or request label Nov 17, 2021
andygrove added a commit to andygrove/datafusion that referenced this issue Jan 31, 2025
@andygrove
fix merge conflicts (apache#1320)
1ba1e2b
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@xudong963