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https://issues.apache.org/jira/browse/HIVE-19580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16772255#comment-16772255
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Steve Loughran edited comment on HIVE-19580 at 2/19/19 7:21 PM:
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If this is EMR then AWS are the only team who can deal with it. Their S3
connector is not the ASF one. Changing the environment to make clear that both
sightings are with EMR URLs.
was (Author: ste...@apache.org):
If this is EMR then AWS are the only person who can deal with it. Their S3
connector is not the ASF one. Changing the environment to make clear that both
sightings are with EMR URLs.
> Hive 2.3.2 with ORC files stored on S3 are case sensitive
> ---------------------------------------------------------
>
> Key: HIVE-19580
> URL: https://issues.apache.org/jira/browse/HIVE-19580
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.3.2
> Environment: EMR s3:// connector
> Spark 2.3 but also true for lower versions
> Hive 2.3.2
> Reporter: Arthur Baudry
> Priority: Major
> Fix For: 2.3.2
>
>
> Original file is csv:
> COL1,COL2
> 1,2
> ORC file are created with Spark 2.3:
> scala> val df = spark.read.option("header","true").csv("/user/hadoop/file")
> scala> df.printSchema
> root
> |– COL1: string (nullable = true)|
> |– COL2: string (nullable = true)|
> scala> df.write.orc("s3://bucket/prefix")
> In Hive:
> hive> CREATE EXTERNAL TABLE test_orc(COL1 STRING, COL2 STRING) STORED AS ORC
> LOCATION ("s3://bucket/prefix");
> hive> SELECT * FROM test_orc;
> OK
> NULL NULL
> *Everyfield is null. However if fields are generated using lower case in
> Spark schemas then everything works.*
> The reason why I'm raising this bug is that we have customers using Hive
> 2.3.2 to read files we generate through Spark and all our code base is
> addressing fields using upper case while this is incompatible with their Hive
> instance.
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