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https://issues.apache.org/jira/browse/HIVE-16300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-16300 started by Kostyantyn Oliynyk.
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> Allow to specify target table columns in static partition insert
> ----------------------------------------------------------------
>
> Key: HIVE-16300
> URL: https://issues.apache.org/jira/browse/HIVE-16300
> Project: Hive
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.1.1
> Reporter: Kostyantyn Oliynyk
> Assignee: Kostyantyn Oliynyk
> Priority: Trivial
>
> It is not possible to specify target table columns in static partition insert.
> As a result SQL parser will throw an error if fields from sub select does not
> match target table fields.
> For example for the following table
> CREATE TABLE my_table(col1 STRING, col2 STRING, col3 STRING) PARTITIONED BY
> (pcol STRING);
> following insert will failed due to different number of fields in select and
> in target table:
> INSERT OVERWRITE TABLE my_table
> PARTITION(pcol='TEST')
> SELECT 'A' as a, 'B'as b;
> Proposed change adds support for the following syntax:
> INSERT OVERWRITE TABLE my_table
> PARTITION(pcol='TEST')
> *(col1, col3)*
> SELECT 'A' as a, 'B'as b;
> Issue is marked with Trivial priority as it has workaround such as using
> dynamic partition insert.
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