fix(source): resolve avro Ref during access without hack

e2e_test/source_inline/kafka/avro/ref.slt

@@ -109,11 +109,102 @@ select
   (bar).b.y
 from s;
 ----
-3 4 5 6 NULL NULL NULL NULL
+3 4 5 6 6 5 4 3
 
-# Parsing of column `bar` fails even with ints because now `schema` is required.
-# This will be fully supported in the next PR
-# 3 4 5 6 6 5 4 3
+
+statement ok
+drop source s;
+
+
+system ok
+curl -X DELETE "${RISEDEV_SCHEMA_REGISTRY_URL}/subjects/avro-ref-value"
+
+
+system ok
+curl -X DELETE "${RISEDEV_SCHEMA_REGISTRY_URL}/subjects/avro-ref-value?permanent=true"
+
+
+system ok
+rpk topic delete 'avro-ref'
+
+
+system ok
+rpk topic create avro-ref
+
+
+system ok
+sr_register avro-ref-value AVRO <<EOF
+{
+  "type": "record",
+  "name": "Root",
+  "fields": [
+    {
+      "name": "foo",
+      "type": {
+        "type": "record",
+        "name": "Seg",
+        "fields": [
+          {
+            "name": "a",
+            "type": {
+              "type": "record",
+              "name": "Point",
+              "fields": [
+                {
+                  "name": "x",
+                  "type": {
+                    "type": "bytes",
+                    "logicalType": "decimal",
+                    "precision": 4,
+                    "scale": 2
+                  }
+                },
+                {
+                  "name": "y",
+                  "type": "int"
+                }
+              ]
+            }
+          },
+          {
+            "name": "b",
+            "type": "Point"
+          }
+        ]
+      }
+    },
+    {
+      "name": "bar",
+      "type": "Seg"
+    }
+  ]
+}
+EOF
+
+
+statement ok
+create source s WITH (${RISEDEV_KAFKA_WITH_OPTIONS_COMMON}, topic = 'avro-ref') FORMAT PLAIN ENCODE AVRO (schema.registry = '${RISEDEV_SCHEMA_REGISTRY_URL}');
+
+
+system ok
+rpk topic produce avro-ref --schema-id=topic <<EOF
+{"foo":{"a":{"x":"\u0001\u002c","y":4},"b":{"x":"\u0001\u00f4","y":6}},"bar":{"a":{"x":"\u0002\u0058","y":5},"b":{"x":"\u0001\u0090","y":3}}}
+EOF
+
+
+query RIRIRIRI
+select
+  (foo).a.x,
+  (foo).a.y,
+  (foo).b.x,
+  (foo).b.y,
+  (bar).a.x,
+  (bar).a.y,
+  (bar).b.x,
+  (bar).b.y
+from s;
+----
+3.00 4 5.00 6 6.00 5 4.00 3
 
 
 statement ok