kingeasternsun commented on a change in pull request #3876:
URL: https://github.com/apache/iceberg/pull/3876#discussion_r788297778
##########
File path: data/src/main/java/org/apache/iceberg/data/TableMigrationUtil.java
##########
@@ -37,16 +37,16 @@
import org.apache.iceberg.PartitionField;
import org.apache.iceberg.PartitionSpec;
import org.apache.iceberg.avro.Avro;
+import org.apache.iceberg.exceptions.RuntimeIOException;
import org.apache.iceberg.hadoop.HadoopInputFile;
import org.apache.iceberg.io.InputFile;
import org.apache.iceberg.mapping.NameMapping;
import org.apache.iceberg.orc.OrcMetrics;
import org.apache.iceberg.parquet.ParquetUtil;
-import org.apache.parquet.hadoop.ParquetFileReader;
-import org.apache.parquet.hadoop.metadata.ParquetMetadata;
+import org.apache.iceberg.util.Tasks;
public class TableMigrationUtil {
-
+ public static final String PARQUET_READ_PARALLELISM =
"parquet.metadata.read.parallelism";
Review comment:
I complelely agree with your point . Maybe rewrite as two methods like
this ?
```java
public static List<DataFile> listPartition(Map<String, String> partition,
String uri, String format,
PartitionSpec spec,
Configuration conf, MetricsConfig metricsConfig,
NameMapping mapping) {
return listPartition(partition, uri, format, spec, conf, metricsConfig,
mapping, 1);
}
public static List<DataFile> listPartition(Map<String, String>
partitionPath, String partitionUri, String format,
PartitionSpec spec,
Configuration conf, MetricsConfig metricsSpec,
NameMapping mapping, int
parallelism) {
```
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