[jira] [Commented] (SPARK-14741) Streaming from partitioned directory structure captures unintended partition columns

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-14741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15249139#comment-15249139 ] 

Apache Spark commented on SPARK-14741:
--------------------------------------

User 'tdas' has created a pull request for this issue:
https://github.com/apache/spark/pull/12517

> Streaming from partitioned directory structure captures unintended partition columns
> ------------------------------------------------------------------------------------
>
>                 Key: SPARK-14741
>                 URL: https://issues.apache.org/jira/browse/SPARK-14741
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Tathagata Das
>            Assignee: Tathagata Das
>
> Consider the following directory structure
>     dir/col=X/some-files
> If we create a text format streaming dataframe on {dir/col=X/}, then it should not consider as partitioning in columns. Even though the streaming dataframe does not do so, the generated batch dataframes pick up col as a partitioning columns, causing mismatch streaming source schema and generated df schema. This leads to runtime failure: 
> 18:55:11.262 ERROR org.apache.spark.sql.execution.streaming.StreamExecution: Query query-0 terminated with error
> java.lang.AssertionError: assertion failed: Invalid batch: c#2 != c#7,type#8



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