[ https://issues.apache.org/jira/browse/HIVE-819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Namit Jain resolved HIVE-819. ----------------------------- Resolution: Fixed Hadoop Flags: [Reviewed] Merged in trunk - Thanks Yongqiang > Add lazy decompress ability to RCFile > ------------------------------------- > > Key: HIVE-819 > URL: https://issues.apache.org/jira/browse/HIVE-819 > Project: Hadoop Hive > Issue Type: Improvement > Components: Query Processor, Serializers/Deserializers > Reporter: He Yongqiang > Assignee: He Yongqiang > Fix For: 0.5.0 > > Attachments: hive-819-2009-11-1.patch, hive-819-2009-9-12.patch, > hive-819-2009-9-21.patch > > > This is especially useful for a filter scanning. > For example, for query 'select a, b, c from table_rc_lazydecompress where > a>1;' we only need to decompress the block data of b,c columns when one row's > column 'a' in that block satisfies the filter condition. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.