pan3793 edited a comment on issue #1885:
URL: https://github.com/apache/iceberg/issues/1885#issuecomment-739987048
I think I found the solution:
```
@Override
protected void output(DataStream<GenericRecord> outputStream,
org.apache.avro.Schema avroSchema) {
DataStream<Row> rowDataStream = outputStream.map(genericRecord -> {
int columnNum = genericRecord.getSchema().getFields().size();
Object[] rowData = new Object[columnNum];
for (int i = 0; i < columnNum; i++) {
rowData[i] = genericRecord.get(i);
}
return Row.of(rowData);
});
org.apache.iceberg.shaded.org.apache.avro.Schema shadeAvroSchema =
new
org.apache.iceberg.shaded.org.apache.avro.Schema.Parser().parse(avroSchema.toString());
Schema icebergSchema = AvroSchemaUtil.toIceberg(shadeAvroSchema);
RowType rowType = FlinkSchemaUtil.convert(icebergSchema);
TableSchema tableSchema = FlinkSchemaUtil.toSchema(rowType);
FlinkSink.forRow(rowDataStream, tableSchema);
}
```
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