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https://issues.apache.org/jira/browse/CASSANDRA-9532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14579120#comment-14579120
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mck commented on CASSANDRA-9532:
--------------------------------
Working with just 9532-2.0-v2.txt
looks great! thanks heaps. it solves the original ticket description and that
in the
[comment|https://issues.apache.org/jira/browse/CASSANDRA-9532?focusedCommentId=14570398&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14570398]
above.
and the trivial, in SelectionColumnMapping could the \*ColumnMapping\* methods
be shortened to \*Mapping\*, eg{noformat} .addColumnMapping(colSpec, column)
--> .addMapping(colSpec, column)
.addColumnMapping(colSpec, columns) --> .addMapping(colSpec, columns)
.getColumnMappings() --> .getMappings(){noformat}
Only noticed because
{{selectStatement.selection.getColumnMapping().getColumnMappings()}} looked a
little odd at first glance, and maybe
{{selectStatement.selection.getColumnMapping().getMappings()}} would read
better, but it's on the banally trivial side of things.
> Provide access to select statement's real column definitions
> ------------------------------------------------------------
>
> Key: CASSANDRA-9532
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9532
> Project: Cassandra
> Issue Type: Improvement
> Reporter: mck
> Assignee: mck
> Fix For: 3.x, 2.1.x, 2.0.x, 2.2.x
>
> Attachments: 9532-2.0-v2.txt, 9532-2.1-v2.txt, 9532-2.2-v2.txt,
> 9532-trunk-v2.txt, cassandra-2.0-9532.txt, cassandra-2.1-9532.txt,
> cassandra-2.2-9532.txt, trunk-9532.txt
>
>
> Currently there is no way to get access to the real ColumnDefinitions being
> used in a SelectStatement.
> This information is there in
> {{selectStatement.selection.columns}} but is private.
> Giving public access would make it possible for third-party implementations
> of a {{QueryHandler}} to work accurately with the real columns being queried
> and not have to work-around column aliases (or when the rawSelectors don't
> map directly to ColumnDefinitions, eg in Selection.fromSelectors(..), like
> functions), which is what one has to do today with going through
> ResultSet.metadata.names.
> This issue provides a very minimal patch to provide access to the already
> final and immutable fields.
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