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https://issues.apache.org/jira/browse/HIVE-3528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13563524#comment-13563524
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Hudson commented on HIVE-3528:
------------------------------
Integrated in Hive-trunk-h0.21 #1937 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/1937/])
HIVE-3528 : Avro SerDe doesn't handle serializing Nullable types that
require access to a Schema (Sean Busbey via Ashutosh Chauhan) (Revision 1438599)
Result = FAILURE
hashutosh :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1438599
Files :
* /hive/trunk/ql/src/test/queries/clientpositive/avro_nullable_fields.q
* /hive/trunk/ql/src/test/results/clientpositive/avro_nullable_fields.q.out
*
/hive/trunk/serde/src/java/org/apache/hadoop/hive/serde2/avro/AvroSerializer.java
*
/hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/avro/TestAvroDeserializer.java
*
/hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/avro/TestAvroObjectInspectorGenerator.java
*
/hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/avro/TestAvroSerializer.java
> Avro SerDe doesn't handle serializing Nullable types that require access to a
> Schema
> ------------------------------------------------------------------------------------
>
> Key: HIVE-3528
> URL: https://issues.apache.org/jira/browse/HIVE-3528
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Reporter: Sean Busbey
> Assignee: Sean Busbey
> Labels: avro
> Fix For: 0.11.0
>
> Attachments: HIVE-3528.1.patch.txt, HIVE-3528.2.patch.txt
>
>
> Deserialization properly handles hiding Nullable Avro types, including
> complex types like record, map, array, etc. However, when Serialization
> attempts to write out these types it erroneously makes use of the UNION
> schema that contains NULL and the other type.
> This results in Schema mis-match errors for Record, Array, Enum, Fixed, and
> Bytes.
> Here's a [review board of unit tests that express the
> problem|https://reviews.apache.org/r/7431/], as well as one that supports the
> case that it's only when the schema is needed.
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