1 files changed, 8 insertions, 9 deletions
diff --git a/modules/lang-expression/src/main/java/org/elasticsearch/script/expression/EmptyMemberValueSource.java b/modules/lang-expression/src/main/java/org/elasticsearch/script/expression/EmptyMemberValueSource.java
index b4c8582e0d..aa12560e1f 100644
--- a/modules/lang-expression/src/main/java/org/elasticsearch/script/expression/EmptyMemberValueSource.java
+++ b/modules/lang-expression/src/main/java/org/elasticsearch/script/expression/EmptyMemberValueSource.java
@@ -19,10 +19,6 @@
 
 package org.elasticsearch.script.expression;
 
-import java.io.IOException;
-import java.util.Map;
-import java.util.Objects;
-
 import org.apache.lucene.index.LeafReaderContext;
 import org.apache.lucene.queries.function.FunctionValues;
 import org.apache.lucene.queries.function.ValueSource;
@@ -31,6 +27,10 @@ import org.elasticsearch.index.fielddata.AtomicNumericFieldData;
 import org.elasticsearch.index.fielddata.IndexFieldData;
 import org.elasticsearch.index.fielddata.SortedNumericDoubleValues;
 
+import java.io.IOException;
+import java.util.Map;
+import java.util.Objects;
+
 /**
  * ValueSource to return non-zero if a field is missing.
  * <p>
@@ -50,12 +50,11 @@ final class EmptyMemberValueSource extends ValueSource {
         final SortedNumericDoubleValues values = leafData.getDoubleValues();
         return new DoubleDocValues(this) {
             @Override
-            public double doubleVal(int doc) {
-                values.setDocument(doc);
-                if (values.count() == 0) {
-                    return 1;
-                } else {
+            public double doubleVal(int doc) throws IOException {
+                if (values.advanceExact(doc)) {
                     return 0;
+                } else {
+                    return 1;
                 }
             }
         };