Fix #42522 evaluate() automatic inference of dtypes (#42830)

* fix automatic inference of dtypes

* Fix inference of dtypes

* updates

Author: slister1001

sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/_evaluate/_utils.py

@@ -460,15 +460,15 @@ def __init__(self, filename: Union[os.PathLike, str]):
         self.filename = filename
 
     def load(self) -> pd.DataFrame:
-        return pd.read_json(self.filename, lines=True)
+        return pd.read_json(self.filename, lines=True, dtype=object)
 
 
 class CSVDataFileLoader:
     def __init__(self, filename: Union[os.PathLike, str]):
         self.filename = filename
 
     def load(self) -> pd.DataFrame:
-        return pd.read_csv(self.filename)
+        return pd.read_csv(self.filename, dtype=str)
 
 
 class DataLoaderFactory:

sdk/evaluation/azure-ai-evaluation/cspell.json

@@ -20,7 +20,8 @@
         "ollama",
         "prompty",
 		"Likert",
-        "isna"
+        "isna",
+        "dtype"
     ],
     "ignorePaths": [
         "sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/_common/onedp/models/_enums.py",