Remove validation for index_name

libs/databricks/langchain_databricks/vectorstores.py

@@ -37,7 +37,6 @@ class IndexType(str, Enum):
 _NON_MANAGED_EMB_ONLY_MSG = (
     "`%s` is not supported for index with Databricks-managed embeddings."
 )
-_INDEX_NAME_PATTERN = re.compile(r"^[a-zA-Z0-9_]+\.[a-zA-Z0-9_]+\.[a-zA-Z0-9_]+$")
 
 
 class DatabricksVectorSearch(VectorStore):
@@ -217,10 +216,10 @@ def __init__(
         text_column: Optional[str] = None,
         columns: Optional[List[str]] = None,
     ):
-        if not (isinstance(index_name, str) and _INDEX_NAME_PATTERN.match(index_name)):
+        if not isinstance(index_name, str):
             raise ValueError(
-                "The `index_name` parameter must be a string in the format "
-                f"'catalog.schema.index'. Received: {index_name}"
+                "The `index_name` parameter must be a string, "
+                f"but got {type(index_name).__name__}."
             )
 
         try: