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https://issues.apache.org/jira/browse/HIVE-17181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16126836#comment-16126836
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Thejas M Nair commented on HIVE-17181:
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+1 to latest patch
Please go ahead and commit
> HCatOutputFormat should expose complete output-schema (including
> partition-keys) for dynamic-partitioning MR jobs
> -----------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-17181
> URL: https://issues.apache.org/jira/browse/HIVE-17181
> Project: Hive
> Issue Type: Bug
> Components: HCatalog
> Affects Versions: 2.2.0, 3.0.0
> Reporter: Mithun Radhakrishnan
> Assignee: Mithun Radhakrishnan
> Attachments: HIVE-17181.1.patch, HIVE-17181.2.patch,
> HIVE-17181.3.patch, HIVE-17181.branch-2.patch
>
>
> Map/Reduce jobs that use HCatalog APIs to write to Hive tables using Dynamic
> partitioning are expected to call the following API methods:
> # {{HCatOutputFormat.setOutput()}} to indicate which table/partitions to
> write to. This call populates the {{OutputJobInfo}} with details fetched from
> the Metastore.
> # {{HCatOutputFormat.setSchema()}} to indicate the output-schema for the data
> being written.
> It is a common mistake to invoke {{HCatOUtputFormat.setSchema()}} as follows:
> {code:java}
> HCatOutputFormat.setSchema(conf, HCatOutputFormat.getTableSchema(conf));
> {code}
> Unfortunately, {{getTableSchema()}} returns only the record-schema, not the
> entire table's schema. We'll need a better API for use in M/R jobs to get the
> complete table-schema.
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