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From "Marquis Wang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-2078) Row-level indexing in bitmap indexes
Date Sun, 27 Mar 2011 21:36:05 GMT
Row-level indexing in bitmap indexes
------------------------------------

                 Key: HIVE-2078
                 URL: https://issues.apache.org/jira/browse/HIVE-2078
             Project: Hive
          Issue Type: Improvement
            Reporter: Marquis Wang
            Priority: Minor


Row-level indexing would greatly improve bitmap indexes. Without row-level indexing, bitmap
indexes are useless without using multiple indexes and combining their bitmaps, since a block
is likely to have all distinct values a column has, as there are millions of rows in one block.


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