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https://issues.apache.org/jira/browse/SPARK-5603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-5603.
-------------------------------------
Resolution: Fixed
Fix Version/s: 1.3.0
Issue resolved by pull request 4373
[https://github.com/apache/spark/pull/4373]
> Preinsert casting and renaming rule is needed in the Analyzer
> -------------------------------------------------------------
>
> Key: SPARK-5603
> URL: https://issues.apache.org/jira/browse/SPARK-5603
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Yin Huai
> Priority: Blocker
> Fix For: 1.3.0
>
>
> For an INSERT INTO/OVERWRITE statement, we should add necessary Cast and
> Alias to the output of the query.
> {code}
> CREATE TEMPORARY TABLE jsonTable (a int, b string)
> USING org.apache.spark.sql.json.DefaultSource
> OPTIONS (
> path '...'
> )
> INSERT OVERWRITE TABLE jsonTable SELECT a * 2, a * 4 FROM table
> {code}
> For a*2, we should create an Alias, so the InsertableRelation can know it is
> the column a. For a*4, it is actually the column b in jsonTable. We should
> first cast it to StringType and add an Alias b to it.
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