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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-2889) HBaseAvroStorage UDF
Date Thu, 23 Aug 2012 16:05:43 GMT

    [ https://issues.apache.org/jira/browse/PIG-2889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13440406#comment-13440406
] 

Alan Gates commented on PIG-2889:
---------------------------------

Hive has an AvroSerDe which I believe can read schema on the fly like this.  This should just
work with HCat.  In theory this should work with HBase as well, since SerDes are independent
of IF/OF and storage handlers in Hive/HCat.  This would all need to be tested.

All that said, there's nothing to prevent you from doing it as you propose in Pig without
HCat.
                
> HBaseAvroStorage UDF
> --------------------
>
>                 Key: PIG-2889
>                 URL: https://issues.apache.org/jira/browse/PIG-2889
>             Project: Pig
>          Issue Type: New Feature
>          Components: data, piggybank
>    Affects Versions: 0.11
>            Reporter: Russell Jurney
>            Assignee: Russell Jurney
>             Fix For: 0.11
>
>
> I want to use HBaseStorage without specifying the schema. Storing data in Avro format
in HBase is a very common practice. I would like to create a UDF, HBaseAvroStorage that works
just like the internal HBaseStorage UDF, but loads the Avro schema metadata so that specifying
a schema is unnecessary.
> I haven't thought through all the particulars, so if you have - please chime in :)
> I am also not sure if this isn't sort of handled some place in HCatalog?

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