ayushtkn commented on code in PR #6074:
URL: https://github.com/apache/hive/pull/6074#discussion_r2356727237
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/writer/HiveIcebergRecordWriter.java:
##########
@@ -20,34 +20,131 @@
package org.apache.iceberg.mr.hive.writer;
import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashSet;
import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
import org.apache.hadoop.io.Writable;
import org.apache.iceberg.DataFile;
import org.apache.iceberg.Table;
+import org.apache.iceberg.data.GenericRecord;
import org.apache.iceberg.data.Record;
import org.apache.iceberg.io.DataWriteResult;
import org.apache.iceberg.io.OutputFileFactory;
import org.apache.iceberg.mr.hive.FilesForCommit;
import org.apache.iceberg.mr.hive.writer.WriterBuilder.Context;
import org.apache.iceberg.mr.mapred.Container;
+import org.apache.iceberg.relocated.com.google.common.collect.Sets;
+import org.apache.iceberg.types.Type;
+import org.apache.iceberg.types.Types;
+import org.apache.iceberg.util.DateTimeUtil;
class HiveIcebergRecordWriter extends HiveIcebergWriterBase {
private final int currentSpecId;
+ private final Set<String> missingColumns;
HiveIcebergRecordWriter(Table table, HiveFileWriterFactory fileWriterFactory,
- OutputFileFactory dataFileFactory, Context context) {
+ OutputFileFactory dataFileFactory, Context context, String
missingColumns) {
super(table, newDataWriter(table, fileWriterFactory, dataFileFactory,
context));
this.currentSpecId = table.spec().specId();
+ this.missingColumns = Optional.ofNullable(missingColumns)
+ .map(columns ->
Arrays.stream(columns.split(",")).collect(Collectors.toCollection(HashSet::new)))
+ .orElse(Sets.newHashSet());
}
@Override
public void write(Writable row) throws IOException {
Record record = ((Container<Record>) row).get();
+ setDefault(specs.get(currentSpecId).schema().asStruct().fields(), record,
missingColumns);
+
writer.write(record, specs.get(currentSpecId), partition(record,
currentSpecId));
}
+ private static void setDefault(List<Types.NestedField> fields, Record
record, Set<String> missingColumns) {
Review Comment:
We get one record only pushed & this is the place where we have the spec to
extract the defaults from the Iceberg layer.
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