[jira] [Created] (FLINK-20248) `ParquetSchemaConverter` can not convert Array type to parquet Type

[Shang Yuanchun (Jira)]

zouyunhe created FLINK-20248:
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             Summary: `ParquetSchemaConverter` can not convert Array type to parquet Type
                 Key: FLINK-20248
                 URL: https://issues.apache.org/jira/browse/FLINK-20248
             Project: Flink
          Issue Type: Bug
          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
    Affects Versions: 1.11.2
            Reporter: zouyunhe


Run a simple code  as below 

 
{code:java}
Type arraySchema = ParquetSchemaConverter.toParquetType(Types.OBJECT_ARRAY(Types.INT), true);
System.out.println(arraySchema);{code}
which use `ParquetSchemaConverter` to convert array[Int] type to parquet Type,  and the exception will throw

 
{code:java}
java.lang.ClassCastException: org.apache.parquet.schema.PrimitiveType cannot be cast to org.apache.parquet.schema.GroupTypejava.lang.ClassCastException: org.apache.parquet.schema.PrimitiveType cannot be cast to org.apache.parquet.schema.GroupType
 at org.apache.flink.formats.parquet.utils.ParquetSchemaConverter.convertField(ParquetSchemaConverter.java:374) at org.apache.flink.formats.parquet.utils.ParquetSchemaConverter.toParquetType(ParquetSchemaConverter.java:74) at org.apache.flink.formats.parquet.utils.ParquetSchemaConverterTest.testArrayTypeConversion(ParquetSchemaConverterTest.java:113) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at
{code}
 

 



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