comphead commented on issue #5276:
URL:
https://github.com/apache/arrow-datafusion/issues/5276#issuecomment-1432033762
> Query 9: 0.09891081294396213 -> 10 times worse
>
> SELECT "RegionID", SUM("AdvEngineID"), COUNT(*) AS c,
AVG("ResolutionWidth"), COUNT(DISTINCT "UserID") FROM hits GROUP BY "RegionID"
ORDER BY c DESC LIMIT 10;
> i have no clue for now, perhaps due to DISTINCT
> @alamb @tustvold @comphead do you have any idea for this?
@waitingkuo I can try to experiment if this is due to distinct.
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