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https://issues.apache.org/jira/browse/CASSANDRA-5800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13719094#comment-13719094
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Alex Liu commented on CASSANDRA-5800:
-------------------------------------
If the user upgrades from pre-1.2 release to 1.2 release, any CQL3 table
created from pre-1.2 release doesn't work for CqlPagingRecordReader because it
stores the key name in key_alias column instead of key_aliases column. The fix
helps the upgrading.
> Support pre-1.2 release CQL3 tables in CqlPagingRecordReader
> ------------------------------------------------------------
>
> Key: CASSANDRA-5800
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5800
> Project: Cassandra
> Issue Type: Improvement
> Components: Hadoop
> Affects Versions: 1.2.6
> Reporter: Alex Liu
> Assignee: Alex Liu
> Attachments: 5800-1.2-branch.txt
>
>
> Pre-1.2 release CQL3 table stores the key in system.schema_columnfamilies
> key_alias column which is different from 1.2 release. We should support it in
> CqlPagingRecordReader as well.
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