[
https://issues.apache.org/jira/browse/CASSANDRA-1600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923089#action_12923089
]
Nate McCall commented on CASSANDRA-1600:
----------------------------------------
Sorry for chiming in late here, but I respectfully disagree with tjake and
thobbs regarding the usefulness of this. I think there is enough
misunderstanding around get_range_slices as is before adding this on top.
get_indexed_slices is the only place where we apply conditions on the values of
a column - I think that is different enough to warrant it's own function.
This also sounds like a PITA when we factor in get_range_slices on SuperColumns
and explaining that one to users.
Fwiw- as for paging, I have personally dealt with 3 support issues in the past
5 days were people did not understand either the ramifications of empty byte[]
on start and finish in the predicate's SliceRange and/or setting high counts
for supercolumns.
> Merge get_indexed_slices with get_range_slices
> ----------------------------------------------
>
> Key: CASSANDRA-1600
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1600
> Project: Cassandra
> Issue Type: Improvement
> Components: API
> Reporter: Stu Hood
> Assignee: Jonathan Ellis
> Fix For: 0.7.0
>
> Attachments:
> 0001-Add-optional-IndexClause-to-KeyRange-and-serialize-wit.txt,
> 0002-Drop-the-IndexClause.count-parameter.txt,
> 0003-Execute-RangeSliceCommands-using-scan-when-an-IndexCla.txt,
> 0004-Remove-get_indexed_slices-method.txt,
> 0005-Update-system-tests-to-use-get_range_slices.txt,
> 0006-Remove-start_key-from-IndexClause-for-the-start_key-in.txt,
> 0007-Respect-end_key-for-filtered-queries.txt,
> 0008-allow-applying-row-filtering-to-sequential-scan.txt,
> 0009-rename-Index-Filter.txt
>
>
> From a comment on 1157:
> {quote}
> IndexClause only has a start key for get_indexed_slices, but it would seem
> that the reasoning behind using 'KeyRange' for get_range_slices applies there
> as well, since if you know the range you care about in the primary index, you
> don't want to continue scanning until you exhaust 'count' (or the cluster).
> Since it would appear that get_indexed_slices would benefit from a KeyRange,
> why not smash get_(range|indexed)_slices together, and make IndexClause an
> optional field on KeyRange?
> {quote}
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
