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https://issues.apache.org/jira/browse/CASSANDRA-18734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17761334#comment-17761334
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Caleb Rackliffe commented on CASSANDRA-18734:
---------------------------------------------

+1 (w/ one small outstanding comment 
[here|https://github.com/apache/cassandra/pull/2645#discussion_r1313190721])

> SAI result retriever is filtering too many rows
> -----------------------------------------------
>
>                 Key: CASSANDRA-18734
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-18734
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Feature/SAI
>            Reporter: Mike Adamson
>            Assignee: Mike Adamson
>            Priority: Normal
>         Attachments: flamegraph.svg, image-2023-08-08-13-48-19-701.png, 
> image-2023-08-08-13-49-19-576.png
>
>
> Performance tests on SAI have shown that the number of rows being filtered 
> for wide row partitions is more than expected. For a 10k row/partition test - 
> limit 10, the following has been observed.
> !image-2023-08-08-13-49-19-576.png|width=952,height=368!
> This is not the expected outcome of row-awareness and needs investigating. 
> The number of rows read should, roughly, match the number of partitions read.
>  



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