[jira] [Created] (PARQUET-364) Parque-avro cannot decode Avro array of primitive array (e.g. array>)

["Cheng Lian (JIRA)" <ji...@apache.org>]

Cheng Lian created PARQUET-364:
----------------------------------

             Summary: Parque-avro cannot decode Avro array of primitive array (e.g. array<array<int>>)
                 Key: PARQUET-364
                 URL: https://issues.apache.org/jira/browse/PARQUET-364
             Project: Parquet
          Issue Type: Bug
          Components: parquet-mr
    Affects Versions: 1.8.0, 1.7.0, 1.6.0, 1.5.0
            Reporter: Cheng Lian


The following Avro schema
{noformat}
record AvroNonNullableArrays {
  array<array<int>> int_arrays_column;
}
{noformat}
is translated into the following Parquet schema by parquet-avro 1.7.0:
{noformat}
message root {
  required group int_arrays_column (LIST) {
    repeated group array (LIST) {
      repeated int32 array;
    }
  }
}
{noformat}
{{AvroIndexedRecordConverter}} cannot decode such records correctly. The reason is that the 2nd level repeated group {{array}} doesn't pass {{AvroIndexedRecordConverter.isElementType()}} check. We probably should check for field name "array" in {{isElementType()}} to fix this issue.



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