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https://issues.apache.org/jira/browse/FLINK-20248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17235717#comment-17235717
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Zhenqiu Huang commented on FLINK-20248:
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[~zouyunhe]
Thanks for reporting the issue. It is kind of duplicated with
https://issues.apache.org/jira/browse/FLINK-20054.
I am working on a fix. Thanks.
> `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
> Priority: Major
>
> 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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