Arkadiusz Gasior created HIVE-7657:
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Summary: Nullable union of 3 or more types is not recognized
nullable
Key: HIVE-7657
URL: https://issues.apache.org/jira/browse/HIVE-7657
Project: Hive
Issue Type: Bug
Components: Serializers/Deserializers
Reporter: Arkadiusz Gasior
Handling nullable union of 3 types or more is causing serialization issues, as
["null","long","string"] is not recognized nullable. Potential code causing
issues might be AvroSerdeUtils.java:
{code}
public static boolean isNullableType(Schema schema) {
return schema.getType().equals(Schema.Type.UNION) &&
schema.getTypes().size() == 2 &&
(schema.getTypes().get(0).getType().equals(Schema.Type.NULL) ||
schema.getTypes().get(1).getType().equals(Schema.Type.NULL));
// [null, null] not allowed, so this check is ok.
}
{code}
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