Hi,

  If a table has two column families, Each stored in a store file in a
region in a regionserver.

  what is process will be a "scan" for "value"s  in these two column
families?

  For example, I want to scan jack's health1:height and health2:weight, each
in a differenet column family.

   First scan height1 in one "store" file, then scan weight in another
"store" file? Then merge these two scan results?

 

 

Thanks!

 

huaxiang

Hi there, the scan will merge the results between the CFsŠ   for more
information see these two chapters in the HBase RefGuide.

http://hbase.apache.org/book.html#datamodel

http://hbase.apache.org/book.html#mapreduce
On 9/9/12 6:41 AM, "huaxiang" <[EMAIL PROTECTED]> wrote:

>Hi,
>
>  If a table has two column families, Each stored in a store file in a
>region in a regionserver.
>
>  what is process will be a "scan" for "value"s  in these two column
>families?
>
>  For example, I want to scan jack's health1:height and health2:weight,
>each
>in a differenet column family.
>
>   First scan height1 in one "store" file, then scan weight in another
>"store" file? Then merge these two scan results?
>
>
>
>
>
>Thanks!
>
>
>
>huaxiang
>