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Posted to dev@hive.apache.org by "Marquis Wang (JIRA)" <ji...@apache.org> on 2011/03/27 23:36:05 UTC

[jira] [Created] (HIVE-2078) Row-level indexing in bitmap indexes

Row-level indexing in bitmap indexes
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                 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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