paul-rogers commented on a change in pull request #1899: DRILL-7445: Create
batch copier based on result set framework
URL: https://github.com/apache/drill/pull/1899#discussion_r348104135
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File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/protocol/VectorContainerAccessor.java
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@@ -22,41 +22,83 @@
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.exec.record.BatchSchema;
+import org.apache.drill.exec.record.RecordBatch;
import org.apache.drill.exec.record.TypedFieldId;
import org.apache.drill.exec.record.VectorContainer;
import org.apache.drill.exec.record.VectorWrapper;
import org.apache.drill.exec.record.WritableBatch;
import org.apache.drill.exec.record.selection.SelectionVector2;
import org.apache.drill.exec.record.selection.SelectionVector4;
+import org.apache.drill.shaded.guava.com.google.common.base.Preconditions;
public class VectorContainerAccessor implements BatchAccessor {
- public static class ContainerAndSv2Accessor extends VectorContainerAccessor {
+ public static class ExtendedContainerAccessor extends
VectorContainerAccessor {
private SelectionVector2 sv2;
+ private SelectionVector4 sv4;
+
+ public void setBatch(RecordBatch batch) {
Review comment:
This exists in anticipation of an upcoming PR. Notice that this form takes a
`RecordBatch`, which possibly holds a SV. This form picks out the container,
does a schema check, then picks out the SV. Added a comment to explain this
fact.
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