diff --git a/data/schemas.py b/data/schemas.py
index c5452bc..e9a9348 100644
--- a/data/schemas.py
+++ b/data/schemas.py
@@ -172,7 +172,7 @@ class SelectQueryInDB(SelectQueryIn):
 
 
 class SelectResultData(BaseModel):
-    columns: List[str]
+    columns: List[str] | str
     data: List[List[Any]]