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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2009/05/21 22:13:45 UTC
[jira] Created: (CASSANDRA-194) Indexed reads for the rest of the
API
Indexed reads for the rest of the API
-------------------------------------
Key: CASSANDRA-194
URL: https://issues.apache.org/jira/browse/CASSANDRA-194
Project: Cassandra
Issue Type: Improvement
Reporter: Jonathan Ellis
Fix For: 0.4
Jun Rao started this in CASSANDRA-172; we need to do this for the rest of the API so we can have millions of columns instead of merely thousands.
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[jira] Commented: (CASSANDRA-194) Indexed reads for the rest of the
API
Posted by "Jun Rao (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711951#action_12711951 ]
Jun Rao commented on CASSANDRA-194:
-----------------------------------
Actually, most of the existing APIs on Standard CF already used Column index. The only exceptions are get_slice and get_column_count. For get_slice, we can actually convert it to a get_slice_from call with an empty starting column. This avoids a full scan of all columns.
Also, there doesn't seem to be an index at sub-column level, so all sub-columns have to be scanned for APIs like get_column on a super CF. I am not sure if it's worthwhile to have three levels of indexes (i.e, key, column, sub-column) though.
> Indexed reads for the rest of the API
> -------------------------------------
>
> Key: CASSANDRA-194
> URL: https://issues.apache.org/jira/browse/CASSANDRA-194
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jonathan Ellis
> Fix For: 0.4
>
>
> Jun Rao started this in CASSANDRA-172; we need to do this for the rest of the API so we can have millions of columns instead of merely thousands.
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[jira] Commented: (CASSANDRA-194) Indexed reads for the rest of the
API
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12712119#action_12712119 ]
Jonathan Ellis commented on CASSANDRA-194:
------------------------------------------
the way the code is structured now, 3 levels of indexes would be pretty painful. We can chalk that up as another "supercolumns are actually pretty limited" caveat for now.
> Indexed reads for the rest of the API
> -------------------------------------
>
> Key: CASSANDRA-194
> URL: https://issues.apache.org/jira/browse/CASSANDRA-194
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jonathan Ellis
> Fix For: 0.4
>
>
> Jun Rao started this in CASSANDRA-172; we need to do this for the rest of the API so we can have millions of columns instead of merely thousands.
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[jira] Resolved: (CASSANDRA-194) Indexed reads for the rest of the
API
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis resolved CASSANDRA-194.
--------------------------------------
Resolution: Invalid
> Indexed reads for the rest of the API
> -------------------------------------
>
> Key: CASSANDRA-194
> URL: https://issues.apache.org/jira/browse/CASSANDRA-194
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jonathan Ellis
> Fix For: 0.4
>
>
> Jun Rao started this in CASSANDRA-172; we need to do this for the rest of the API so we can have millions of columns instead of merely thousands.
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[jira] Updated: (CASSANDRA-194) Indexed reads for the rest of the
API
Posted by "Michael Greene (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Greene updated CASSANDRA-194:
-------------------------------------
Component/s: Core
> Indexed reads for the rest of the API
> -------------------------------------
>
> Key: CASSANDRA-194
> URL: https://issues.apache.org/jira/browse/CASSANDRA-194
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Fix For: 0.4
>
>
> Jun Rao started this in CASSANDRA-172; we need to do this for the rest of the API so we can have millions of columns instead of merely thousands.
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