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https://issues.apache.org/jira/browse/CASSANDRA-5156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-5156:
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Attachment: 5156.txt
> CQL: loosen useless versioning constraint
> -----------------------------------------
>
> Key: CASSANDRA-5156
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5156
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Priority: Trivial
> Fix For: 1.2.1
>
> Attachments: 5156.txt
>
>
> So far the CQL doc says the CQL language follows http://semver.org/. Meaning
> that a version is X.Y.Z where:
> * X is the major version and denotes backward incompatible changes
> * Y is the minor version and denotes backward compatible changes
> * Z is the patch version and denotes backward *and* forward compatible
> changes, i.e. change to the implementation.
> Now I don't think for CQL we have much use of the patch version. Not that
> knowing when implementation fixes have been done is not useful but:
> # The Cassandra version number already kind of cover that.
> # While a patch version would be more precise in that it would only concern
> CQL3 related changes, I have no illusion on our capacity in maintaining such
> patch version accuratly (and frankly, I don't blame us).
> So instead of keeping a number that will end up having no usefulness
> whatsoever, I suggest that we either:
> # remove it and have CQL3 version being just major and minor.
> # use that latter number as a sub-minor version, i.e. a version that only
> # denotes backward compatible changes, not forward ones. We would then bump
> the two last digit at our discretion, to denote some form of "importance" of
> the changes.
> I don't care much about which of the two we end up doing, but since we
> already have a 3 numbers version and since I kind of like the idea of having
> two numbers to convey a sense of importance of the changes, I'm attaching a
> patch for the 2nd solution.
> Note that the patch removes the changes section from the doc, but that's
> because I think it's useless in it's current form (on top of being
> inaccurate). I do plan on adding a new changes section that lists changes
> between CQL minor version as soon as we have some of those.
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