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https://issues.apache.org/jira/browse/CASSANDRA-4041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13401442#comment-13401442
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Pavel Yaskevich commented on CASSANDRA-4041:
--------------------------------------------
Thinking about the syntax, good way probably would be to do "alter table <cf>
add primary_key '<new-column-name>'", which would add the column definition to
the end of composite comparator, what do you think? The easiest tho is to
support "alter table <cf> with comparator = '<col_1, col_2, col_3, ...>'" which
would require from users to specify all of the column names to be used in
comparator or alternatively "alter table <cf> set primary_key '<col_1, col_2,
...>".
> Allow updating column_alias types
> ---------------------------------
>
> Key: CASSANDRA-4041
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4041
> Project: Cassandra
> Issue Type: Sub-task
> Components: API
> Reporter: Sylvain Lebresne
> Assignee: Pavel Yaskevich
> Priority: Minor
> Fix For: 1.1.2
>
>
> CASSANDRA-3657 has added the ability to change comparators (including parts
> of a compositeType) when compatible. The code of CQL3 forbids it currently
> however so we should lift that limitation.
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