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Posted to commits@cassandra.apache.org by "Sam Tunnicliffe (JIRA)" <ji...@apache.org> on 2012/09/04 21:05:07 UTC
[jira] [Created] (CASSANDRA-4613) Utilise Secondary Indexes in
ColumnFamilyRecordReader
Sam Tunnicliffe created CASSANDRA-4613:
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Summary: Utilise Secondary Indexes in ColumnFamilyRecordReader
Key: CASSANDRA-4613
URL: https://issues.apache.org/jira/browse/CASSANDRA-4613
Project: Cassandra
Issue Type: New Feature
Components: Hadoop
Reporter: Sam Tunnicliffe
Assignee: Sam Tunnicliffe
Fix For: 1.1.5
Enable an IndexClause to be passed to ColumnFamilyRecordReader by serializing it and adding to the Hadoop job Configuration. This is a requirement for enabling Filter Pushdown[1] in Hive which can vastly reduce the number of scanned rows that need to be processed in the Hive layer.
[1] https://cwiki.apache.org/Hive/filterpushdowndev.html
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[jira] [Updated] (CASSANDRA-4613) Utilise Secondary Indexes in
ColumnFamilyRecordReader
Posted by "Sam Tunnicliffe (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-4613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sam Tunnicliffe updated CASSANDRA-4613:
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Attachment: 0001-Utilise-Secondary-Indexes-in-ColumnFamilyRecordReader.txt
> Utilise Secondary Indexes in ColumnFamilyRecordReader
> -----------------------------------------------------
>
> Key: CASSANDRA-4613
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4613
> Project: Cassandra
> Issue Type: New Feature
> Components: Hadoop
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Fix For: 1.1.5
>
> Attachments: 0001-Utilise-Secondary-Indexes-in-ColumnFamilyRecordReader.txt
>
>
> Enable an IndexClause to be passed to ColumnFamilyRecordReader by serializing it and adding to the Hadoop job Configuration. This is a requirement for enabling Filter Pushdown[1] in Hive which can vastly reduce the number of scanned rows that need to be processed in the Hive layer.
> [1] https://cwiki.apache.org/Hive/filterpushdowndev.html
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