Update app.py

app.py

@@ -87,7 +87,7 @@ def parse_query(nl_query):
 def execute_sql_query(sql_query):
     try:
         con = duckdb.connect()
-        con.execute(f"CREATE OR REPLACE VIEW contract_data AS SELECT * FROM '{dataset_path}' WHERE awardee != '' AND state != '' AND awardee IS NOT NULL")
+        con.execute(f"CREATE OR REPLACE VIEW contract_data AS SELECT * FROM '{dataset_path}' WHERE awardee != '' AND state != '' AND awardee != 'null'")
         result_df = con.execute(sql_query).fetchdf()
         con.close()
         return result_df, ""