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https://issues.apache.org/jira/browse/CASSANDRA-1706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12929127#action_12929127
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Jonathan Ellis commented on CASSANDRA-1706:
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TRUNCATE should be a separate command.
http://en.wikipedia.org/wiki/Truncate_%28SQL%29
> CQL deletes (aka DELETE)
> ------------------------
>
> Key: CASSANDRA-1706
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1706
> Project: Cassandra
> Issue Type: Sub-task
> Components: API
> Affects Versions: 0.8
> Reporter: Eric Evans
> Priority: Minor
> Fix For: 0.8
>
> Original Estimate: 0h
> Remaining Estimate: 0h
>
> CQL specification and implementation for data removal.
> This corresponds to the following RPC methods:
> * remove()
> * batch_mutate() (deleting, not updating)
> * truncate() (?)
> My thoughts on the syntax are that it can probably closely mirror a subset of
> `SELECT':
> {code:SQL}
> DELETE (FROM)? <CF> [USING CONSISTENCY.<LVL>] WHERE <EXPRESSION>
> {code}
> Optionally, you could support a form that makes the `WHERE' clause optional,
> statements without the clause would be interpreted as a column family
> truncation.
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