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https://issues.apache.org/jira/browse/CASSANDRA-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13295111#comment-13295111
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Rick Shaw commented on CASSANDRA-3647:
--------------------------------------

Why isn't the discard syntax as simple as:

{code}
SET L = L - [2, 3]
SET S = S - {4, 5}
SET M = M - {'asdf'}
{code}

I assume BTW that braces ("[") are signifying a _position_ in an ordered list, 
and Brackets ("{") are signifying a _value_ (or label) and not a position.
                
> Support set and map value types in CQL
> --------------------------------------
>
>                 Key: CASSANDRA-3647
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3647
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Jonathan Ellis
>            Assignee: Sylvain Lebresne
>              Labels: cql
>             Fix For: 1.2
>
>
> Composite columns introduce the ability to have arbitrarily nested data in a 
> Cassandra row.  We should expose this through CQL.

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