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https://issues.apache.org/jira/browse/CASSANDRA-7396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15278243#comment-15278243
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Sylvain Lebresne commented on CASSANDRA-7396:
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bq. there's an idea to postpone the slice deletes
I *definitively* think we shouldn't support slice deletions here as we can't
really do it properly. Doing a read-before-write is not only inefficient, it's
wrong because what is deleted depends on when that read is done, but messages
are never guaranteed to arrive in order to replicas. In other words, a
read-before-write deletes will sometime not delete stuffs it should.
> Allow selecting Map key, List index
> -----------------------------------
>
> Key: CASSANDRA-7396
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7396
> Project: Cassandra
> Issue Type: New Feature
> Components: CQL
> Reporter: Jonathan Ellis
> Assignee: Robert Stupp
> Labels: cql, docs-impacting
> Fix For: 3.x
>
> Attachments: 7396_unit_tests.txt
>
>
> Allow "SELECT map['key]" and "SELECT list[index]." (Selecting a UDT subfield
> is already supported.)
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