修正

backend/check_insurance_rates.py

@@ -0,0 +1,25 @@
+import psycopg
+
+conn = psycopg.connect(
+    host='192.168.0.61',
+    port=55432,
+    dbname='njts_acct',
+    user='njts_app',
+    password='njts_app2025'
+)
+
+cur = conn.cursor()
+cur.execute("""
+    SELECT column_name, data_type 
+    FROM information_schema.columns 
+    WHERE table_name = 'insurance_rates' 
+    ORDER BY ordinal_position
+""")
+
+rows = cur.fetchall()
+print('insurance_ratesテーブルのカラム:')
+for r in rows:
+    print(f'  {r[0]}: {r[1]}')
+
+cur.close()
+conn.close()