[HIVE-2078] Row-level indexing in bitmap indexes

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Marquis Wang
• Created: 27/Mar/11 21:34
• Updated: 02/May/13 02:29

Description

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.

Issue Links

• depends upon: HIVE-1803 Implement bitmap indexing in Hive