ARROW-1347: [JAVA] return consistent child field name for List vectors

dremio · Sep 20, 2017 · 2923a45 · 2923a45
1 parent 975f32b
commit 2923a45
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java b/java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java
@@ -49,6 +49,7 @@
 import org.apache.arrow.vector.schema.ArrowFieldNode;
 import org.apache.arrow.vector.types.Types.MinorType;
 import org.apache.arrow.vector.types.pojo.ArrowType;
+import org.apache.arrow.vector.types.pojo.ArrowType.Null;
 import org.apache.arrow.vector.types.pojo.DictionaryEncoding;
 import org.apache.arrow.vector.types.pojo.Field;
 import org.apache.arrow.vector.types.pojo.FieldType;
@@ -323,6 +324,9 @@ public int getBufferSize() {
 
  @Override
  public Field getField() {
+ if (getDataVector() == ZeroVector.INSTANCE) {
+ return new Field(name, fieldType, ImmutableList.of(new Field(DATA_VECTOR_NAME, FieldType.nullable(Null.INSTANCE), null)));
+ }
  return new Field(name, fieldType, ImmutableList.of(getDataVector().getField()));
  }