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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-1157) add support for multiple indexexpressions
Date Thu, 03 Jun 2010 05:53:55 GMT
add support for multiple indexexpressions
-----------------------------------------

                 Key: CASSANDRA-1157
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1157
             Project: Cassandra
          Issue Type: Sub-task
            Reporter: Jonathan Ellis
             Fix For: 0.7


we should:

 - use the statistics from CASSANDRA-1155 to figure out which index has the highest selectivity,
and start with that
 - if other indexes have high selectivity (average number of columns in an index row is less
than 1% of total in that CF), we should do a merge join
 - otherwise, just loop the results from the first and reject un-satisfied expressions


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