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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hive/IndexDev/Bitmap" by MarquisWang
Date Sun, 21 Nov 2010 05:13:59 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The "Hive/IndexDev/Bitmap" page has been changed by MarquisWang.
http://wiki.apache.org/hadoop/Hive/IndexDev/Bitmap?action=diff&rev1=2&rev2=3

--------------------------------------------------

  
  For the second iteration, the first entry will be:
  
- {{https://issues.apache.org/jira/secure/attachment/12460083/bitmap_index_2.png}}
+ {{https://issues.apache.org/jira/secure/attachment/12460124/bitmap_index_2.png}}
  
  This one uses 1-byte array entries, so each value in the array stores 8 rows. If an entry
is 0x00 or 0xFF, it represents 1 or more consecutive bytes of zeros, (in this case 5 and 4,
respectively)
  

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