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https://issues.apache.org/jira/browse/SPARK-19484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15855402#comment-15855402
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Apache Spark commented on SPARK-19484:
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User 'windpiger' has created a pull request for this issue:
https://github.com/apache/spark/pull/16828
> continue work to create a table with an empty schema
> ----------------------------------------------------
>
> Key: SPARK-19484
> URL: https://issues.apache.org/jira/browse/SPARK-19484
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Song Jun
> Priority: Minor
>
> after SPARK-19279, we could not create a Hive table with an empty schema,
> we should tighten up the condition when create a hive table in
> https://github.com/apache/spark/blob/master/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala#L835
> That is if a CatalogTable t has an empty schema, and (there is no
> `spark.sql.schema.numParts` or its value is 0), we should not add a default
> `col` schema, if we did, a table with an empty schema will be created, that
> is not we expected.
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