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From Jason Rutherglen <jason.rutherg...@gmail.com>
Subject Re: AVRO Path
Date Fri, 13 Jan 2012 19:01:30 GMT

It makes a lot of sense for NoSQL systems that store large AVRO blobs,
that only require a subset of the data, where the entire blob could
generate significant network traffic.  In a system like HBase, AVRO
makes a lot of sense because schema evolution via HBase can be hairy,
and the storage format is verbose.

I would open a ticket however I do not have time allotted to work on it.


On Thu, Jan 12, 2012 at 10:05 AM, Scott Carey <scottcarey@apache.org> wrote:
> There are no plans that I know of currently, although the topic came up
> two times in separate conversations last night at the SF Hadoop MeetUp.
> I think an ability to extract a subset of a schema from a larger one and
> read/write/transform data accordingly makes a lot of sense. Currently, the
> Avro spec allows for schema resolution which is sort of a degenerate
> schema extraction/transformation at the record level without the ability
> to address or extract nested elements.  An addition to the spec for
> describing other schema extractions may be useful.  Further discussion
> should probably be in a JIRA ticket or at least on the dev list.
> -Scott
> On 1/10/12 1:02 PM, "Jason Rutherglen" <jason.rutherglen@gmail.com> wrote:
>>Are there plans for (or is there already) an AVRO Path implementation
>>(like XPath, or JSON Path).

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