Try er/redis index retrieval retry00 (#7773)

Replace this comment with:
- Description: Modified the code to return the document id from the
redis document search as metadata.
  - Issue: the issue # it fixes retrieval of id as metadata as string 
  - Tag maintainer: @rlancemartin, @eyurtsev

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>

langchain/vectorstores/redis.py

@@ -319,7 +319,7 @@ class Redis(VectorStore):
         base_query = (
             f"{hybrid_fields}=>[KNN {k} @{self.vector_key} $vector AS vector_score]"
         )
-        return_fields = [self.metadata_key, self.content_key, "vector_score"]
+        return_fields = [self.metadata_key, self.content_key, "vector_score", "id"]
         return (
             Query(base_query)
             .return_fields(*return_fields)
@@ -356,17 +356,12 @@ class Redis(VectorStore):
         results = self.client.ft(self.index_name).search(redis_query, params_dict)
 
         # Prepare document results
-        docs = [
-            (
-                Document(
-                    page_content=result.content, metadata=json.loads(result.metadata)
-                ),
-                float(result.vector_score),
-            )
-            for result in results.docs
-        ]
-
-        return docs
+        docs_and_scores: List[Tuple[Document, float]] = []
+        for result in results.docs:
+            metadata = {**json.loads(result.metadata), "id": result.id}
+            doc = Document(page_content=result.content, metadata=metadata)
+            docs_and_scores.append((doc, float(result.vector_score)))
+        return docs_and_scores
 
     @classmethod
     def from_texts_return_keys(