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From Andrew Nguyen <andrew-lists-hb...@ucsfcti.org>
Subject Re: Modeling column families
Date Sat, 24 Apr 2010 02:38:38 GMT
Saw responses over on the Cassandra to a similar question and I think I've answered my own

the Timestamp you refer to could be the date, and the columns would be the milliseconds within
that particular date?


On Apr 23, 2010, at 6:17 PM, Andrew Nguyen wrote:

> When you say Bob-ABP-Timestamp, I assume you're still referring to the row-key?  If so,
I'm confused as to what the column name would be.
> Or, are you saying that each row should be a combination of the patient name and timestamp,
with the physiologic parameter name as the column name?  Would that still provide better query
times when only looking for a particular patient's data?
> Thanks,
> Andrew
> On Apr 23, 2010, at 6:06 PM, Erik Holstad wrote:
>> Hey Andrew!
>> The storage structure of your data could be pretty much the same choosing
>> HBase or Cassandra.
>> You can either do it your way or
>> Bob-ABP-Timestamp which will give you the advantage of scaling better, since
>> both HBase and
>> Cassandra are splitting by rows.
>> HBase has the advantage of scanning much better than Cassandra and is
>> therefore more suitable
>> for the row oriented approach.
>> Erik

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