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https://issues.apache.org/jira/browse/PIG-833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716471#action_12716471
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Jeff Hammerbacher commented on PIG-833:
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Hey Hong,
I never mentioned SQL or an ecosystem in my comment, but thanks for your
observation. I was simply referring to the existence of a fairly detailed
discussion in a related subproject that the Pig team may not have been
following. I'll add an additional one here:
https://issues.apache.org/jira/browse/HIVE-279 addresses the predicate pushdown
feature.
Regards,
Jeff
> Storage access layer
> --------------------
>
> Key: PIG-833
> URL: https://issues.apache.org/jira/browse/PIG-833
> Project: Pig
> Issue Type: New Feature
> Reporter: Jay Tang
>
> A layer is needed to provide a high level data access abstraction and a
> tabular view of data in Hadoop, and could free Pig users from implementing
> their own data storage/retrieval code. This layer should also include a
> columnar storage format in order to provide fast data projection,
> CPU/space-efficient data serialization, and a schema language to manage
> physical storage metadata. Eventually it could also support predicate
> pushdown for further performance improvement. Initially, this layer could be
> a contrib project in Pig and become a hadoop subproject later on.
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