diff --git a/examples/json_field.rs b/examples/json_field.rs
index e61f8a934..9a2bf5d87 100644
--- a/examples/json_field.rs
+++ b/examples/json_field.rs
@@ -1,7 +1,8 @@
 // # Json field example
 //
 // This example shows how the json field can be used
-// to make tantivy partially schemaless.
+// to make tantivy partially schemaless by setting it as
+// default query parser field.
 
 use tantivy::collector::{Count, TopDocs};
 use tantivy::query::QueryParser;
@@ -10,10 +11,6 @@ use tantivy::Index;
 
 fn main() -> tantivy::Result<()> {
     // # Defining the schema
-    //
-    // We need two fields:
-    // - a timestamp
-    // - a json object field
     let mut schema_builder = Schema::builder();
     schema_builder.add_date_field("timestamp", FAST | STORED);
     let event_type = schema_builder.add_text_field("event_type", STRING | STORED);
@@ -43,7 +40,8 @@ fn main() -> tantivy::Result<()> {
         "attributes": {
             "target": "submit-button",
             "cart": {"product_id": 133},
-            "description": "das keyboard"
+            "description": "das keyboard",
+            "event_type": "holiday-sale"
         }
     }"#,
     )?;
@@ -53,6 +51,9 @@ fn main() -> tantivy::Result<()> {
     let reader = index.reader()?;
     let searcher = reader.searcher();
 
+    // # Default fields: event_type and attributes
+    // By setting attributes as a default field it allows omitting attributes itself, e.g. "target",
+    // instead of "attributes.target"
     let query_parser = QueryParser::for_index(&index, vec![event_type, attributes]);
     {
         let query = query_parser.parse_query("target:submit-button")?;
@@ -70,10 +71,34 @@ fn main() -> tantivy::Result<()> {
         assert_eq!(count_docs, 1);
     }
     {
-        let query = query_parser
-            .parse_query("event_type:click AND cart.product_id:133")
-            .unwrap();
-        let hits = searcher.search(&*query, &TopDocs::with_limit(2)).unwrap();
+        let query = query_parser.parse_query("click AND cart.product_id:133")?;
+        let hits = searcher.search(&*query, &TopDocs::with_limit(2))?;
+        assert_eq!(hits.len(), 1);
+    }
+    {
+        // The sub-fields in the json field marked as default field still need to be explicitly
+        // addressed
+        let query = query_parser.parse_query("click AND 133")?;
+        let hits = searcher.search(&*query, &TopDocs::with_limit(2))?;
+        assert_eq!(hits.len(), 0);
+    }
+    {
+        // Default json fields are ignored if they collide with the schema
+        let query = query_parser.parse_query("event_type:holiday-sale")?;
+        let hits = searcher.search(&*query, &TopDocs::with_limit(2))?;
+        assert_eq!(hits.len(), 0);
+    }
+    // # Query via full attribute path
+    {
+        // This only searches in our schema's `event_type` field
+        let query = query_parser.parse_query("event_type:click")?;
+        let hits = searcher.search(&*query, &TopDocs::with_limit(2))?;
+        assert_eq!(hits.len(), 2);
+    }
+    {
+        // Default json fields can still be accessed by full path
+        let query = query_parser.parse_query("attributes.event_type:holiday-sale")?;
+        let hits = searcher.search(&*query, &TopDocs::with_limit(2))?;
         assert_eq!(hits.len(), 1);
     }
     Ok(())