[jira] [Created] (HIVE-19580) Hive 2.3.2 with ORC files stored on S3 are case sensitive

["Arthur Baudry (JIRA)" <ji...@apache.org>]

Arthur Baudry created HIVE-19580:
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             Summary: 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: AWS S3 to store files

Spark 2.3 but also true for lower versions

Hive 2.3.2
            Reporter: Arthur Baudry
             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

*Everything field 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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