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From S Ahmed <sahmed1...@gmail.com>
Subject Re: forum application data model conversion
Date Thu, 24 Jun 2010 01:49:45 GMT
Any thoughts?

On Tue, Jun 22, 2010 at 2:13 PM, S Ahmed <sahmed1020@gmail.com> wrote:

> Converting a Forum application to cassandra's data model.
>
> Tables:
>
> Posts [postID, threadID, userID, subject, body, created, lastmodified]
>
> So this table contains the actual question subject and body.
>
> When a user logs in, they want to see a list of their questions, and also
> order by the last-modified date (to see if people responed to their
> question).
>
> How would you do this best in Cassandra, seeing as the question/answer text
> is stored in another table.
>
> I know you could make a CF like:
>
> userID { postID1, postID2, ...}
>
> And somehow order by last-modified, but then on the actual web page you
> would have to first query for postID's owned by the user, and orderd by
> last-modified.
>
> THEN you would have to fetch the post data from the posts collection.
>
> Is this the only way?  I mean other than repeating the post subject+body in
> the user-to-postID index CF.
>
>
>

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