diff --git a/rag/app/table.py b/rag/app/table.py
index 542edec7a68..b35cb105ebd 100644
--- a/rag/app/table.py
+++ b/rag/app/table.py
@@ -102,9 +102,9 @@ def column_data_type(arr):
     for a in arr:
         if a is None:
             continue
-        if re.match(r"[+-]?[0-9]+(\.0+)?$", str(a).replace("%%", "")):
+        if re.match(r"[+-]?[0-9]{,19}(\.0+)?$", str(a).replace("%%", "")):
             counts["int"] += 1
-        elif re.match(r"[+-]?[0-9.]+$", str(a).replace("%%", "")):
+        elif re.match(r"[+-]?[0-9.]{,19}$", str(a).replace("%%", "")):
             counts["float"] += 1
         elif re.match(r"(true|yes|是|\*|✓|✔|☑|✅|√|false|no|否|⍻|×)$", str(a), flags=re.IGNORECASE):
             counts["bool"] += 1