SinghAsDev commented on a change in pull request #3774:
URL: https://github.com/apache/iceberg/pull/3774#discussion_r791304657
##########
File path:
spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/data/TestSparkParquetReader.java
##########
@@ -169,6 +178,60 @@ public void
testInt96TimestampProducedBySparkIsReadCorrectly() throws IOExceptio
}
}
+ @Test
+ public void testWriteReadAvroBinary() throws IOException {
+ String schema = "{" +
+ "\"type\":\"record\"," +
+ "\"name\":\"DbRecord\"," +
+ "\"namespace\":\"com.iceberg\"," +
+ "\"fields\":[" +
+ "{\"name\":\"arraybytes\", " +
+ "\"type\":[ \"null\", { \"type\":\"array\", \"items\":\"bytes\"}],
\"default\":null}," +
+ "{\"name\":\"topbytes\", \"type\":\"bytes\"}" +
+ "]" +
+ "}";
+
+ org.apache.avro.Schema.Parser parser = new org.apache.avro.Schema.Parser();
+ org.apache.avro.Schema avroSchema = parser.parse(schema);
+ AvroSchemaConverter converter = new AvroSchemaConverter();
+ MessageType parquetScehma = converter.convert(avroSchema);
+ Schema icebergSchema = ParquetSchemaUtil.convert(parquetScehma);
+
+ File testFile = temp.newFile();
+ Assert.assertTrue(testFile.delete());
+
+ ParquetWriter<GenericRecord> writer =
AvroParquetWriter.<GenericRecord>builder(new Path(testFile.toURI()))
+ .withDataModel(GenericData.get())
+ .withSchema(avroSchema)
+ .config("parquet.avro.add-list-element-records", "true")
+ .config("parquet.avro.write-old-list-structure", "true")
+ .build();
+
+ GenericRecordBuilder recordBuilder = new GenericRecordBuilder(avroSchema);
+ List<ByteBuffer> expectedByteList = new ArrayList();
+ byte[] expectedByte = {0x00, 0x01};
+ expectedByteList.add(ByteBuffer.wrap(expectedByte));
+
+ recordBuilder.set("arraybytes", expectedByteList);
+ recordBuilder.set("topbytes", ByteBuffer.wrap(expectedByte));
+ GenericData.Record record = recordBuilder.build();
+ writer.write(record);
+ writer.close();
+
+ List<InternalRow> rows;
+ try (CloseableIterable<InternalRow> reader =
+ Parquet.read(Files.localInput(testFile))
+ .project(icebergSchema)
+ .createReaderFunc(type ->
SparkParquetReaders.buildReader(icebergSchema, type))
+ .build()) {
Review comment:
`ParquetSchema.convert(MessageType)` assigns fallback ids to top-level
fields and so the fields were being read.
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