Writing to a super column family does not involve deserialisation, other than
writing to the commit log it is an in memory operation.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 15/06/2012, at 3:36 AM, Greg Fausak wrote:
> Derek,
>
>
Derek,
Thanks for that!
Yes, I am aware of that technique. I am currently using something
very similar on an sql database. I think one of the great benefits with
Cassandra is that you can invent these on the fly. I also think there
is great benefit to keep all of the columns in the same row.
On Wed, Jun 13, 2012 at 9:08 PM, Greg Fausak wrote:
> Interesting.
>
> How do you do it?
>
> I have a version 2 CF, that works fine.
> A version 3 table won't let me invent columns that
> don't exist yet. (for composite tables). What's the trick?
>
You are able to get the same behaviour as non
I have just check on datastax blog, "CQL3 does not support, I am not
aware."
But as a whole we can via client lib using cql.
On Thu, Jun 14, 2012 at 9:12 AM, Dave Brosius wrote:
> Via thrift, or a high level client on thrift, see as an example
>
> http://www.datastax.com/dev/blog/introduction-
Via thrift, or a high level client on thrift, see as an example
http://www.datastax.com/dev/blog/introduction-to-composite-columns-part-1
On 06/13/2012 11:08 PM, Greg Fausak wrote:
Interesting.
How do you do it?
I have a version 2 CF, that works fine.
A version 3 table won't let me invent col
Interesting.
How do you do it?
I have a version 2 CF, that works fine.
A version 3 table won't let me invent columns that
don't exist yet. (for composite tables). What's the trick?
cqlsh -3 cas1
use onplus;
cqlsh:onplus> select * from at_event where ac_event_id = 7690254;
ac_event_id | ac_crea
You can't 'invent' columns on the fly, everything has
> to be declared when you declare the column family.
>>
>>
That' s incorrect. You can define name on fly. Validation must be define
when declaring CF
You can create composite columns on the fly.
On 06/13/2012 09:58 PM, Greg Fausak wrote:
That's a good question. I just went to a class, Ben was saying that
any action on a super column requires de-re-serialization. But, it
would be nice if a write had this sort of efficiency.
I have been pl
That's a good question. I just went to a class, Ben was saying that
any action on a super column requires de-re-serialization. But, it
would be nice if a write had this sort of efficiency.
I have been playing with the 1.1.1 version, in that one there are
'composite' columns, which I think are li
Does a write to a sub column involve deserialization of the entire super
column ?
Thanks,
Oleg
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