Hi,
If I have a one-to-many relationship in a SQL database (an author might
have written many books), and I want to denormalize it for writing in
HBase, I'll have a table with the Author as the row key and a *list* of
books as values.
Now my question is how do I create a *list* such that I could
Arun,
You need to represent your data in a format such that you can simply add a
byte[] to the end of the existing byte[] in a Cell and later read and
decode it as a list.
One way is to use the encode your data as protobuf. When you append a list
of values in byte[] form in protobuf to an existing
Hi,
If a author does not have hundreds of publications, you can directly write
in one column. Hence, your column will contain multiple data versions. The
default data version is 3 but you can send more.
On Tue, Jul 22, 2014 at 4:20 AM, Ishan Chhabra
wrote:
> Arun,
> You need to represent your
Hi,
Isn't versioning used for an entirely different purpose? What if I screw up
a book name and then have to rewrite it? Then I'll have two versions for
the same book. Also, AFAIK the default number of versions is 1 on table
creation without additional parameters.
Thanks,
Arun
On Jul 22, 2014 12:
When storing new lists using new columns, similar issue would arise, right ?
In Ishan's words:
bq. read all the columns and combine when reading
The combining process applies to the multi-version approach as well.
Cheers
On Tue, Jul 22, 2014 at 12:32 PM, Arun Allamsetty wrote:
> Hi,
>
> Isn'
That's true. I never thought of it that way. Thanks for pointing it out.
Arun
On Jul 22, 2014 4:07 PM, "Ted Yu" wrote:
> When storing new lists using new columns, similar issue would arise, right
> ?
> In Ishan's words:
>
> bq. read all the columns and combine when reading
>
> The combining proc
