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From Stu Hood <stuh...@gmail.com>
Subject Re: Calculating the size of rows in KBs
Date Sat, 12 Feb 2011 05:21:12 GMT
> Does it also mean that the whole row will be deserialized when a query
comes
> just for one column?
No, it does not mean that: at most column_index_size_in_kb will be read to
read a single column, independent of where that column is in the row.

On the other hand, with the row cache enabled, it is as if everything in the
row is "needed", so the entire row will be read. There is talk of improving
this limitation of the row cache: see
https://issues.apache.org/jira/browse/CASSANDRA-1956


On Fri, Feb 11, 2011 at 6:00 PM, buddhasystem <potekhin@bnl.gov> wrote:

>
> Does it also mean that the whole row will be deserialized when a query
> comes
> just for one column?
>
> --
> View this message in context:
> http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Calculating-the-size-of-rows-in-KBs-tp6011243p6017870.html
> Sent from the cassandra-user@incubator.apache.org mailing list archive at
> Nabble.com.
>

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