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From "Tupshin Harper (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-4415) Add cursor API/auto paging to the native CQL protocol
Date Thu, 05 Jul 2012 18:38:35 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13407369#comment-13407369
] 

Tupshin Harper edited comment on CASSANDRA-4415 at 7/5/12 6:38 PM:
-------------------------------------------------------------------

IMO, document thoroughly the lack of isolation when paging and punt. It's the best we can
do, and is generally sufficient.
                
      was (Author: tupshin):
    IMO, document the lack of isolation when paging thoroughly and punt. It's the best we
can do, and is generally sufficient.
                  
> Add cursor API/auto paging to the native CQL protocol
> -----------------------------------------------------
>
>                 Key: CASSANDRA-4415
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4415
>             Project: Cassandra
>          Issue Type: New Feature
>    Affects Versions: 1.2
>            Reporter: Sylvain Lebresne
>
> The goal here would be to use a query paging mechanism to the CQL native protocol. Typically
the client/server with that would look something like this:
> {noformat}
> C sends query to S.
> S sends N first rows matching the query + flag saying the response is not complete
> C requests the next N rows
> S sends N next rows + flag saying whether there is more
> C requests the next N rows
> ...
> S sends last rows + flag saying there is no more result
> {noformat}
> The clear goal is for user to not have to worry about limiting queries and doing manual
paging.

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