[jira] [Updated] (SPARK-16006) Empty DataFrame created with spark.read.text() cannot be written as it has no fields

["Tathagata Das (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-16006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tathagata Das updated SPARK-16006:
----------------------------------
    Summary: Empty DataFrame created with spark.read.text() cannot be written as it has no fields  (was: Empty DataFrame with spark.read.text() cannot be written as it has no fields)

> Empty DataFrame created with spark.read.text() cannot be written as it has no fields
> ------------------------------------------------------------------------------------
>
>                 Key: SPARK-16006
>                 URL: https://issues.apache.org/jira/browse/SPARK-16006
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Tathagata Das
>
> Attempting to write an emptyDataFrame created with {{spark.read.text().write.text("p")}} fails with the following exception
> {code}
> [info] - text API *** FAILED *** (218 milliseconds)
> [info]   org.apache.spark.sql.AnalysisException: Cannot use all columns for partition columns;
> [info]   at org.apache.spark.sql.execution.datasources.PartitioningUtils$.validatePartitionColumn(PartitioningUtils.scala:355)
> [info]   at org.apache.spark.sql.execution.datasources.DataSource.write(DataSource.scala:432)
> [info]   at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:213)
> [info]   at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:196)
> [info]   at org.apache.spark.sql.DataFrameWriter.text(DataFrameWriter.scala:525)
> {code}
> This is because # fields == # partitioning columns  = 0 at org.apache.spark.sql.execution.datasources.PartitioningUtils$.validatePartitionColumn(PartitioningUtils.scala:355)



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