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Editorial Team
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Asked: 2026-06-07T08:08:01+00:00

The following is working as expected. But who do I execute range queries like

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The following is working as expected. But who do I execute range queries like “where age > 40 and age < 50”

create keyspace Keyspace1;
use Keyspace1;
create column family Users with comparator=UTF8Type and default_validation_class=UTF8Type and key_validation_class=UTF8Type;

set Users[jsmith][first] = 'John';
set Users[jsmith][last] = 'Smith';
set Users[jsmith][age] = long(42);

get Users[jsmith];
=> (column=age, value=42, timestamp=1341375850335000)
=> (column=first, value=John, timestamp=1341375827657000)
=> (column=last, value=Smith, timestamp=1341375838375000)
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1 Answer

  1. Editorial Team

    You have to create a Secondary index on the column age:

    update column family Users with column_metadata=[{column_name: age, validation_class: LongType, index_type: KEYS}];

    Then use:

    get Users where age > 40 and age < 50

    Note: I think: Exclusive operators are not supported since 1.2.

    Datastax has a good documentation about that: http://www.datastax.com/dev/blog/whats-new-cassandra-07-secondary-indexes Or you can create and maintain your own secondary index. This is a good link about that:
    http://www.anuff.com/2010/07/secondary-indexes-in-cassandra.html

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