zhuqi-lucas commented on issue #7363: URL: https://github.com/apache/arrow-rs/issues/7363#issuecomment-2829713889
> I profiled this command: > > ``` > ./datafusion-cli-filter-pushdown -c "SELECT \"WatchID\", \"ClientIP\", COUNT(*) AS c, SUM(\"IsRefresh\"), AVG(\"ResolutionWidth\") FROM hits WHERE \"SearchPhrase\" <> '' GROUP BY \"WatchID\", \"ClientIP\" ORDER BY c DESC LIMIT 10;" > ``` > > And I see that about 15% of the time is being spent "skipping" records -- aka evaluating the RowSelection in the parquet reader  > > This is likely the same observation that lead [@XiangpengHao](https://github.com/XiangpengHao) to propose adding bitmask support in > > * [[Parquet] Add BooleanArray based row selection #6624](https://github.com/apache/arrow-rs/pull/6624) > > I need to think about what the right next steps are I am trying to pick up this PR https://github.com/apache/arrow-rs/pull/6624 , and to apply and then to see the performance. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
