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https://issues.apache.org/jira/browse/CASSANDRA-8767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14325661#comment-14325661
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Sylvain Lebresne commented on CASSANDRA-8767:
---------------------------------------------
While serializing the {{reversed}} flag could maybe make sense (I say maybe
because in practice we are serializing cells in (non-reversed) comparator
order, so we'd have to handle deserialization specially if we were doing that,
which may not be an improvement (but I can agree the way we handle reversed
queries is weird)), I don't think it's practical option. But as the CF on which
this happen in the paging code is a shallow clone in the first place, and pager
knows if it's a reversed query or not, I think we can just clone with the
proper insertion order flag. Attaching trivial patch to show what I mean
(untested and without tests, we should push the test you've been using as
dtest).
> "Added column does not sort as the last column" when using new python driver
> ----------------------------------------------------------------------------
>
> Key: CASSANDRA-8767
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8767
> Project: Cassandra
> Issue Type: Bug
> Components: Core, Drivers (now out of tree)
> Environment: Cassandra 2.0.10, python-driver 2.1.3
> Reporter: Russ Garrett
> Assignee: Tyler Hobbs
> Fix For: 2.0.13
>
> Attachments: 8767-debug-logging.txt, 8767.patch, describe-table.txt,
> exception-with-logging.txt, exception.txt
>
>
> We've just upgraded one of our python apps from using the old cql library to
> the new python-driver. When running one particular query, it produces the
> attached assertion error in Cassandra. The query is:
> bq. SELECT buffer, id, type, json FROM events WHERE buffer = %(bid)s AND
> idkey = %(idkey)s ORDER BY id ASC
> Where buffer and idkey are integer primary keys, and id is the clustering key
> (ordered asc).
> This query, with identical parameters, does not cause this error using the
> old cql python library, or with the cqlsh client..
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