[jira] [Commented] (CASSANDRA-11372) Make CQL grammar more easily extensible

["Mike Adamson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-11372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15199738#comment-15199738 ] 

Mike Adamson commented on CASSANDRA-11372:
------------------------------------------

Patch here:
||trunk||
|[branch|https://github.com/mike-tr-adamson/cassandra/tree/11372-trunk]|
|[testall|http://cassci.datastax.com/view/Dev/view/madamson/job/mike-tr-adamson-11372-trunk-testall/]|
|[dtests|http://cassci.datastax.com/view/Dev/view/madamson/job/mike-tr-adamson-11372-trunk-dtest/]|


> Make CQL grammar more easily extensible 
> ----------------------------------------
>
>                 Key: CASSANDRA-11372
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11372
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: CQL
>            Reporter: Mike Adamson
>            Assignee: Mike Adamson
>             Fix For: 3.x
>
>
> The CQL grammar ({{Cql.g}}) is currently a composite grammar and, as such, is not easy to extend.
> We now have a number of 3rd parties who are extending the grammar (custom index grammars, for example) and it would be helpful if the grammar could be split in a parser and lexer in order to make extension easier.



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