Update app.py

app.py

@@ -6,7 +6,10 @@ con = duckdb.connect(":memory:")
 def greet(SQL_Query):
     if "limit" not in SQL_Query.lower():
         raise gr.Error("You should use the LIMIT clause or it may take too much time to run your query. For example: ```LIMIT 10000```")
-    return con.sql(SQL_Query).df().apply(lambda x: x.apply(lambda y: y[:50] + "..." if isinstance(y, str) and len(y) > 50 else y))
+    df = con.sql(SQL_Query).df()
+    if df.columns:  # truncate long strings
+        df = df.apply(lambda x: x.apply(lambda y: y[:150 // len(df.columns)] + "..." if isinstance(y, str) and len(y) > 150 // len(df.columns) else y))
+    return df
 
 examples = [
     "SELECT * FROM 'hf://datasets/HuggingFaceFW/fineweb/sample/10BT/*.parquet' LIMIT 10;",