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From "Jim Ancona (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-1088) Enable cassandra-cli to list rows, and page through rows in a column family
Date Mon, 11 Oct 2010 21:39:35 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Ancona updated CASSANDRA-1088:
----------------------------------

    Attachment: cassandra-cli-list-1021514.patch

Updated patch to apply to revision 1021514.

> Enable cassandra-cli to list rows, and page through rows in a column family
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1088
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1088
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Tools
>            Reporter: Frank Du
>             Fix For: 0.7.1
>
>         Attachments: cassandra-cli-list-1021514.patch, cassandra-cli-list.patch, patch.txt,
path-2010-0602.txt
>
>
> I have been looking for showing rows and paging through rows. Finally I write this extension
to cassandra-cli tool. 
> Let's assume that we have the following data in column family named 'CF1':
> =========================
> Row 1:
> key: fdu1, name: 'Frank Du', city: 'NYC'
> Row 2:
> key: fdu2, name: 'Jonathan Ellis'
> Row 3:
> key: fdu3, name: 'Eric Evans'
> Syntax:
> =========================
> LIST keyRangeExpression limitClause?
> keyRangeExpression:
>         columnFamilyName[ startKey : endKey ]  ( [ 'superCoumnName' ] )? 
> limitClause: 
>         LIMIT count (OFFSET offset)? 
>         \| LIMIT offset, count
> The limit clause is the same with MySql.
> Examples:
> =========================
> // list all the 3 rows in CF1
> list CF1[ '' : '' ]    
> // list all rows, offset from index 1. So it will show 2 rows
> list CF1[ '' : '' ] limit 1, 10    
>  // show the rows 'fdu2' and 'fdu3'
> list CF1[ 'fdu2' : '' ] limit 10 

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