Song Jun created SPARK-19484:
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Summary: 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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