[ https://issues.apache.org/jira/browse/CASSANDRA-8767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14324503#comment-14324503 ]
Tyler Hobbs commented on CASSANDRA-8767: ---------------------------------------- Thanks, that provides some insight. It's adding the cell (<int-value>, "json") after (<int-value>, "type") with the same value for <int-value>. The comparator for this schema includes a UTF8Type component at the end for the column name (and it's always in normal sorting order), so "json" should come before "type". I was able to reproduce this with a multi-node cluster, so this is happening somewhere that the single-node path doesn't trigger. > "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, 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.. -- This message was sent by Atlassian JIRA (v6.3.4#6332)