Change source readers name() method

Author: carlosdelest

server/src/main/java/org/elasticsearch/index/mapper/BlockSourceReader.java

@@ -326,7 +326,7 @@ public RowStrideReader rowStrideReader(LeafReaderContext context, DocIdSetIterat
 
         @Override
         protected String name() {
-            return "Floats";
+            return "DenseVectors";
         }
     }
 
@@ -342,7 +342,7 @@ protected void append(BlockLoader.Builder builder, Object v) {
 
         @Override
         public String toString() {
-            return "BlockSourceReader.Floats";
+            return "BlockSourceReader.DenseVectors";
         }
     }