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https://issues.apache.org/jira/browse/CASSANDRA-10537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17525471#comment-17525471
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Berenguer Blasi commented on CASSANDRA-10537:
---------------------------------------------
Committed! thanks a lot [~Antoine Rocheteau] for your work and patience with
our CI which has been a bit difficult these days :-)
[j11|https://app.circleci.com/pipelines/github/bereng/cassandra/646/workflows/e6563adc-8346-41d5-982c-01e8249c96c8]
CI
[j8|https://app.circleci.com/pipelines/github/bereng/cassandra/646/workflows/d2ed1a1f-bdb5-4c18-8d30-96985cabdd23]
CI
C*
[committed|https://github.com/apache/cassandra/commit/d80bb323c9dd8f814fe02e16dec510557c7d5101]
dtest
[committed|https://github.com/apache/cassandra-dtest/commit/5e06a1f5c192670b586abf8d1a68e4f884ba4e42]
> CONTAINS and CONTAINS KEY support for Lightweight Transactions
> --------------------------------------------------------------
>
> Key: CASSANDRA-10537
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10537
> Project: Cassandra
> Issue Type: Improvement
> Components: Legacy/CQL
> Reporter: Nimi Wariboko Jr.
> Assignee: ROCHETEAU Antoine
> Priority: Normal
> Labels: AdventCalendar2021, CQL, lhf
> Fix For: 4.x
>
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> Conditional updates currently do not support CONTAINS and CONTAINS KEY
> conditions. Queries such as
> {{UPDATE mytable SET somefield = 4 WHERE pk = 'pkv' IF set_column CONTAINS
> 5;}}
> are not possible.
> Would it also be possible to support the negation of these (ex. testing that
> a value does not exist inside a set)?
> +Additional Information for newcomers:+
> Negation should not be supported as for the moment we do not support it
> within restrictions either.
> One way to approch this bug is to use test driven development. You can modify
> {{InsertUpdateIfConditionCollectionsTest}} to allow CONTAINS and CONTAINS KEY
> operators and go through the different failures.
> The following changes will need to be done.
> * The {{columnCondition}} rule from the ANTLR {{Parser.g}} file should be
> updated to accept {{containsOperator}}.
> * {{ColumnCondition.Raw#prepareTerms}} should be modified in the case where
> the operator is a CONTAINS or CONTAINS KEY as the {{receiver}} is not the
> collection but keys or values of the collection. Look at
> {{SingleColumnRelation#makeCollectionReceiver}}.
> * {{ColumnCollection.MultiCellCollectionBound#valueAppliesTo}} will need to
> be changed for {{Map}} and {{Set}} to process CONTAINS operators.
>
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