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https://issues.apache.org/jira/browse/CASSANDRA-15459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17172320#comment-17172320
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Andres de la Peña commented on CASSANDRA-15459:
-----------------------------------------------
Thanks for the review.
Committed to 3.11 as
[86a9261fd94707283e4ce149f88756099e22fcb6|https://github.com/apache/cassandra/commit/86a9261fd94707283e4ce149f88756099e22fcb6]
and merged up to
[trunk|https://github.com/apache/cassandra/commit/ae51f0fd12820707927803fdbe63581f33111d4b].
> Short read protection doesn't work on group-by queries
> ------------------------------------------------------
>
> Key: CASSANDRA-15459
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15459
> Project: Cassandra
> Issue Type: Bug
> Components: Legacy/Coordination
> Reporter: ZhaoYang
> Assignee: Andres de la Peña
> Priority: Normal
> Labels: correctness
> Fix For: 3.11.x, 4.0-beta
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> [DTest to
> reproduce|https://github.com/apache/cassandra-dtest/compare/master...jasonstack:srp_group_by_trunk?expand=1]:
> it affects all versions..
> {code}
> In a two-node cluster with RF = 2
> Execute only on Node1:
> * Insert pk=1 and ck=1 with timestamp 9
> * Delete pk=0 and ck=0 with timestamp 10
> * Insert pk=2 and ck=2 with timestamp 9
> Execute only on Node2:
> * Delete pk=1 and ck=1 with timestamp 10
> * Insert pk=0 and ck=0 with timestamp 9
> * Delete pk=2 and ck=2 with timestamp 10
> Query: "SELECT pk, c FROM %s GROUP BY pk LIMIT 1"
> * Expect no live data, but got [0, 0]
> {code}
> Note: for group-by queries, SRP should use "group counted" to calculate
> limits used for SRP query, rather than "row counted".
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