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https://issues.apache.org/jira/browse/SPARK-15308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust updated SPARK-15308:
-------------------------------------
Target Version/s: 2.0.0
> RowEncoder should preserve nested column name.
> ----------------------------------------------
>
> Key: SPARK-15308
> URL: https://issues.apache.org/jira/browse/SPARK-15308
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Takuya Ueshin
>
> The following code generates wrong schema:
> {code}
> val schema = new StructType().add(
> "struct",
> new StructType()
> .add("i", IntegerType, nullable = false)
> .add(
> "s",
> new StructType().add("int", IntegerType, nullable = false),
> nullable = false),
> nullable = false)
> val ds = sqlContext.range(10).map(l => Row(l, Row(l)))(RowEncoder(schema))
> ds.printSchema()
> {code}
> This should print as follows:
> {code}
> root
> |-- struct: struct (nullable = false)
> | |-- i: integer (nullable = false)
> | |-- s: struct (nullable = false)
> | | |-- int: integer (nullable = false)
> {code}
> but the result is:
> {code}
> root
> |-- struct: struct (nullable = false)
> | |-- col1: integer (nullable = false)
> | |-- col2: struct (nullable = false)
> | | |-- col1: integer (nullable = false)
> {code}
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