rdblue commented on a change in pull request #3533:
URL: https://github.com/apache/iceberg/pull/3533#discussion_r747748752
##########
File path:
arrow/src/main/java/org/apache/iceberg/arrow/vectorized/VectorizedArrowReader.java
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@@ -407,26 +412,36 @@ public void setBatchSize(int batchSize) {
}
private static final class PositionVectorReader extends
VectorizedArrowReader {
+ private final Field arrowField =
ArrowSchemaUtil.convert(MetadataColumns.ROW_POSITION);
+ private final BufferAllocator bufferAllocator =
ArrowAllocation.rootAllocator();
+ private final boolean setArrowValidityVector;
private long rowStart;
+ private int batchSize;
+ private FieldVector vec;
private NullabilityHolder nulls;
+ PositionVectorReader(boolean setArrowValidityVector) {
+ this.setArrowValidityVector = setArrowValidityVector;
+ }
+
@Override
public VectorHolder read(VectorHolder reuse, int numValsToRead) {
- Field arrowField = ArrowSchemaUtil.convert(MetadataColumns.ROW_POSITION);
- FieldVector vec =
arrowField.createVector(ArrowAllocation.rootAllocator());
-
- if (reuse != null) {
+ if (reuse == null) {
+ this.vec = newVector();
+ this.nulls = new NullabilityHolder(batchSize);
Review comment:
Yeah, why don't we always use the same one?
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