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From: "Cheng Lian (JIRA)" <jira@apache.org>
To: issues@spark.apache.org
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Subject: [jira] [Resolved] (SPARK-7737) parquet schema discovery should not
 fail because of empty _temporary dir
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     [ https://issues.apache.org/jira/browse/SPARK-7737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cheng Lian resolved SPARK-7737.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 1.4.0

Issue resolved by pull request 6329
[https://github.com/apache/spark/pull/6329]

> parquet schema discovery should not fail because of empty _temporary dir 
> -------------------------------------------------------------------------
>
>                 Key: SPARK-7737
>                 URL: https://issues.apache.org/jira/browse/SPARK-7737
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.4.0
>            Reporter: Yin Huai
>            Assignee: Yin Huai
>            Priority: Blocker
>             Fix For: 1.4.0
>
>
> Parquet schema discovery will fail when the dir is like 
> {code}
> /partitions5k/i=2/_SUCCESS
> /partitions5k/i=2/_temporary/
> /partitions5k/i=2/part-r-00001.gz.parquet
> /partitions5k/i=2/part-r-00002.gz.parquet
> /partitions5k/i=2/part-r-00003.gz.parquet
> /partitions5k/i=2/part-r-00004.gz.parquet
> {code}
> {code}
> java.lang.AssertionError: assertion failed: Conflicting partition column names detected:
> 	
> 	at scala.Predef$.assert(Predef.scala:179)
> 	at org.apache.spark.sql.sources.PartitioningUtils$.resolvePartitions(PartitioningUtils.scala:159)
> 	at org.apache.spark.sql.sources.PartitioningUtils$.parsePartitions(PartitioningUtils.scala:71)
> 	at org.apache.spark.sql.sources.HadoopFsRelation.org$apache$spark$sql$sources$HadoopFsRelation$$discoverPartitions(interfaces.scala:468)
> 	at org.apache.spark.sql.sources.HadoopFsRelation$$anonfun$partitionSpec$3.apply(interfaces.scala:424)
> 	at org.apache.spark.sql.sources.HadoopFsRelation$$anonfun$partitionSpec$3.apply(interfaces.scala:423)
> 	at scala.Option.getOrElse(Option.scala:120)
> 	at org.apache.spark.sql.sources.HadoopFsRelation.partitionSpec(interfaces.scala:422)
> 	at org.apache.spark.sql.sources.HadoopFsRelation.schema$lzycompute(interfaces.scala:482)
> 	at org.apache.spark.sql.sources.HadoopFsRelation.schema(interfaces.scala:480)
> 	at org.apache.spark.sql.sources.LogicalRelation.<init>(LogicalRelation.scala:30)
> 	at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:134)
> 	at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:118)
> 	at org.apache.spark.sql.SQLContext.load(SQLContext.scala:1135)
> {code}
> 1.3 works fine.



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