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From "Ahmet AKYOL (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-5313) add a cardinality function for collection types ( CQL3 )
Date Tue, 05 Mar 2013 11:03:12 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-5313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ahmet AKYOL updated CASSANDRA-5313:
-----------------------------------

    Description: 
Currently , cql3 doesn't provide a cardinality function for collection types. It'll be great
to have one:

{code}
select content, cardinality(like_set),cardinality(dislike_set) from comments where id=?;
{code}

or size as keyword
{code}
select content, size(like_set),size(dislike_set) from comments where id=?;
{code}

Something similar in SQL is [cardinality of nested tables|http://www.techonthenet.com/oracle/functions/cardinality.php]
.

  was:
Currently , cql3 doesn't provide a cardinality function for collection types. It'll be great
to have one:

{code}
select content, cardinality(like_set),cardinality(dislike_set) from comments;
{code}

or size as keyword
{code}
select content, size(like_set),size(dislike_set) from comments;
{code}

Something similar in SQL is [cardinality of nested tables|http://www.techonthenet.com/oracle/functions/cardinality.php]
.

    
> add a cardinality function for collection types ( CQL3 )
> --------------------------------------------------------
>
>                 Key: CASSANDRA-5313
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5313
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Ahmet AKYOL
>              Labels: cql3, ponies
>
> Currently , cql3 doesn't provide a cardinality function for collection types. It'll be
great to have one:
> {code}
> select content, cardinality(like_set),cardinality(dislike_set) from comments where id=?;
> {code}
> or size as keyword
> {code}
> select content, size(like_set),size(dislike_set) from comments where id=?;
> {code}
> Something similar in SQL is [cardinality of nested tables|http://www.techonthenet.com/oracle/functions/cardinality.php]
.

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