Rachelint commented on issue #12114:
URL: https://github.com/apache/datafusion/issues/12114#issuecomment-2306375118
> I am also curious what is the compatible matrix for all aggregation
optimizations (like can skip-partial-aggregation and external-aggregation
triggered in the same execution, for all combinations) Specifying them in
configuration manual and code doc can make it easier to understand the
aggregation details, and also write more effective tests
In my knowledge, it may be:
| | spilling | streaming(sorted) | skip partial | blocke
emission | | | | | |
|-------------------|----------|-------------------|--------------|-----------------|---|---|---|---|---|
| spilling | | x | o | x
| | | | | |
| streaming(sorted) | x | | o | o
| | | | | |
| skip partial | o | x | | o
| | | | | |
| blocke emission | x | x | o |
| | | | | |
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