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https://issues.apache.org/jira/browse/CASSANDRA-17617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17559257#comment-17559257
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Josh McKenzie commented on CASSANDRA-17617:
-------------------------------------------
[CI Results]
Branch: 4.1, build number: 68
butler url:
https://butler.cassandra.apache.org/#/ci/upstream/compare/Cassandra-4.1/Cassandra-4.1
jenkins url: https://ci-cassandra.apache.org/job/Cassandra-4.1/68/
JIRA: CASSANDRA-17617
commit url:
https://gitbox.apache.org/repos/asf?p=cassandra.git;a=commit;h=f884dda75b1427b8cb9aa64c46d30fb4c1eeffee
affected paths:
* pylib/cqlshlib/formatting.py
Build Result: UNSTABLE
Passing Tests: 47693
Failing Tests: 8
||Test|Failures|JIRA||
|org.apache.cassandra.cql3.ViewFilteringClustering1Test.testClusteringKeySliceRestrictions[3]|11
of 65|[No JIRA
found|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=496&quickFilter=2252]
|org.apache.cassandra.db.monitoring.MonitoringTaskTest.testMultipleThreadsSameNameSlow|2
of 65|[No JIRA
found|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=496&quickFilter=2252]
|org.apache.cassandra.distributed.upgrade.BatchUpgradeTest.batchTest|16 of
65|[CASSANDRA-17651?|https://issues.apache.org/jira/browse/CASSANDRA-17651]|
|org.apache.cassandra.net.proxy.ProxyHandlerTest.testNormalDelivery-cdc|2 of
65|[No JIRA
found|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=496&quickFilter=2252]
|org.apache.cassandra.cql3.validation.entities.SecondaryIndexTest.testWithEmptyRestrictionValueAndSecondaryIndex|5
of 65|[No JIRA
found|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=496&quickFilter=2252]
|org.apache.cassandra.cql3.validation.entities.TupleTypeTest.testNestedTuple|8
of 65|[No JIRA
found|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=496&quickFilter=2252]
|org.apache.cassandra.cql3.ViewFiltering2Test.testRestrictedRegularColumnTimestampUpdates[3]|1
of 65|[No JIRA
found|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=496&quickFilter=2252]
|org.apache.cassandra.cql3.ViewFiltering1Test.testFilterWithFunction[3]|1 of
65|[No JIRA
found|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=496&quickFilter=2252]
> CQLSH unicode control character list is too liberal
> ---------------------------------------------------
>
> Key: CASSANDRA-17617
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17617
> Project: Cassandra
> Issue Type: Improvement
> Components: CQL/Interpreter
> Reporter: Tanuj Nayak
> Assignee: Tanuj Nayak
> Priority: Normal
> Fix For: 3.11.14, 4.0.5, 4.1-rc, 4.x
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> It appears that the list of escaped unicode control characters
> [here|https://github.com/apache/cassandra/blob/53a67ff2c36d90d337aba1409498de29931d4279/pylib/cqlshlib/formatting.py#L32]
> is a bit too liberal. It seems to include characters such as '1' (0x31) and
> '0' (0x30) which do not need to be escaped. It seems that the actual range
> should be 0x00 - 0x1F and 0x7F+ as corroborated [by this
> page|https://en.wikipedia.org/wiki/Unicode_control_characters].
>
> This causes unnecessary escaping and regex substitutions on the CQLSH end
> whenever common characters such as any punctuation or a 0 or a 1 appear in
> the text column of a table. One might notice that a table with a text column
> filled with 2's will take much less time to print than one with all 0's for
> this reason.
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