[jira] [Created] (FLINK-31951) Mix schema record source creates corrupt record

["Kevin Tseng (Jira)" <ji...@apache.org>]

Kevin Tseng created FLINK-31951:
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             Summary: Mix schema record source creates corrupt record
                 Key: FLINK-31951
                 URL: https://issues.apache.org/jira/browse/FLINK-31951
             Project: Flink
          Issue Type: Bug
          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
    Affects Versions: 1.17.0, 1.18.0
            Reporter: Kevin Tseng


This seems to be an unexpected side effect with how AvroDeserializationSchema class was written.

Sometimes we do not have control over what record comes through a Kafka Topic.

In current implementation, if AvroDeserializationSchema encountered a record byte array that does not conform to the specified Schema / SpecificRecord type, it will cause future record to be deserialized incorrectly.

Origin of the issue is with how
{code:java}
AvroDeserializationSchema.deserialize{code}
handles exception, and how
{code:java}
AvroDeserializationSchema.checkAvroInitialized{code}
handles initialization of Decoder object



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