cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-1157) add support for multiple indexexpressions
Date Fri, 23 Jul 2010 21:28:52 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-1157:
--------------------------------------

    Attachment: 1157.txt

> 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 beta 1
>
>         Attachments: 1157.txt
>
>
> 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

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message