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Posted to dev@pig.apache.org by "Alan Gates (JIRA)" <ji...@apache.org> on 2012/08/23 18:05:43 UTC
[jira] [Commented] (PIG-2889) HBaseAvroStorage UDF
[ 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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