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Posted to commits@hudi.apache.org by "Jingwei Zhang (Jira)" <ji...@apache.org> on 2021/02/10 03:24:00 UTC
[jira] [Created] (HUDI-1607) Decimal handling bug in
SparkAvroPostProcessor
Jingwei Zhang created HUDI-1607:
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Summary: Decimal handling bug in SparkAvroPostProcessor
Key: HUDI-1607
URL: https://issues.apache.org/jira/browse/HUDI-1607
Project: Apache Hudi
Issue Type: Bug
Reporter: Jingwei Zhang
This issue related to [#[Hudi-1343]|[https://github.com/apache/hudi/pull/2192].]
I think the purpose of Hudi-1343 was to bridge the different between avro 1.8.2(used by hudi) and avro 1.9.2(used by upstream system) thru internal Struct type. In particular, the incompatible form to express nullable type between those two versions.
It was all good until I hit the type Decimal. Since it can either be FIXED or BYTES, if an avro schema contains decimal type with BYTES as its literal type, after this two way conversion its literal type become FIXED instead. This will cause an exception to be thrown in AvroConversionHelper as the data underneath is ByteBuffer rather than GenericFixed.
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