[
https://issues.apache.org/jira/browse/HIVE-11548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mithun Radhakrishnan updated HIVE-11548:
----------------------------------------
Attachment: HIVE-11548.3.patch
> HCatLoader should support predicate pushdown.
> ---------------------------------------------
>
> Key: HIVE-11548
> URL: https://issues.apache.org/jira/browse/HIVE-11548
> Project: Hive
> Issue Type: New Feature
> Components: HCatalog
> Reporter: Mithun Radhakrishnan
> Assignee: Mithun Radhakrishnan
> Attachments: HIVE-11548.1.patch, HIVE-11548.2.patch,
> HIVE-11548.3.patch
>
>
> When one uses {{HCatInputFormat}}/{{HCatLoader}} to read from file-formats
> that support predicate pushdown (such as ORC, with
> {{hive.optimize.index.filter=true}}), one sees that the predicates aren't
> actually pushed down into the storage layer.
> The forthcoming patch should allow for filter-pushdown, if any of the
> partitions being scanned with {{HCatLoader}} support the functionality. The
> patch should technically allow the same for users of {{HCatInputFormat}}, but
> I don't currently have a neat interface to build a compound
> predicate-expression. Will add this separately, if required.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
