Sean Busbey created HIVE-3528:
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Summary: 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
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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