index check changes

createmilvusschema.py

@@ -32,15 +32,17 @@ def CreateMilvusDbSchema():
     # Create the collection in Milvus
     collection = Collection(name=COLLECTION_NAME, schema=schema)
 
-    # Create an optimized index for fast vector search
-    collection.create_index(
-        "chunk_embedding",
-        {
+    if not collection.indexes:
+        print("Creating index for fast vector search...")
+        index_params = { 
             "index_type": "HNSW",  # Hierarchical Navigable Small World (HNSW) index
             "metric_type": "COSINE",  # Cosine similarity for vector search
             "params": {"M": 16, "efConstruction": 200}  # HNSW parameters
         }
-    )
+        collection.create_index(field_name="chunk_embedding", index_params=index_params)
+        print("Index created successfully.")
+    else:
+        print("Index already exists: ", collection.indexes)
 
     print(f"Collection '{COLLECTION_NAME}' created successfully.")
     return collection