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From Valentin Kulichenko <valentin.kuliche...@gmail.com>
Subject Re: Cassandra store issues
Date Fri, 31 Mar 2017 04:18:15 GMT
Igor,

Thanks for clarifications!

-Val

On Thu, Mar 30, 2017 at 9:09 PM, Igor Rudyak <irudyak@gmail.com> wrote:

> Hi Val,
>
> Thanks for the info. I replied to both questions.
>
> Regarding the first question - we just don't support mapping from
> java.sql.Timestamp to Cassandra's Datatype.Name.TIMESTAMP type, cause there
> are no direct mapping for it http://docs.datastax.com/en/
> developer/java-driver/3.1/manual/#cql-to-java-type-mapping.  We can
> easily add support for this mapping, but there actually plenty of other
> Timestamp types in core java (java.sql.Timestamp, java.security.Timestamp,
> java.sun.jmx.snmp.Timestamp and etc.) and even more in different third
> party libraries. Thus it's just technically not possible to add support for
> all variety of Timestamps.
>
> Regarding second question - in current implementation, complex data types
> (collections, custom types) could only be mapped to BLOB type in Cassandra.
>
> Igor
>
> On Thu, Mar 30, 2017 at 5:39 PM, Valentin Kulichenko <
> valentin.kulichenko@gmail.com> wrote:
>
>> Hi Igor,
>>
>> There are two recent questions on the user forum regarding
>> ignite-cassandra module, and they seem to be very similar to each other:
>>
>>    - http://apache-ignite-users.70518.x6.nabble.com/Timestamp-is-
>>    not-stored-correctly-with-Cassandra-td11590.html
>>    <http://apache-ignite-users.70518.x6.nabble.com/Timestamp-is-not-stored-correctly-with-Cassandra-td11590.html>
>>    - http://apache-ignite-users.70518.x6.nabble.com/Mapping-java-
>>    util-Map-in-CassandraPersistentStore-td11574.html
>>    <http://apache-ignite-users.70518.x6.nabble.com/Mapping-java-util-Map-in-CassandraPersistentStore-td11574.html>
>>
>> Can you please take a look?
>>
>> Do we support all Cassandra data types properly? If not, why?
>>
>> -Val
>>
>
>

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