查询续存率（auto_renew=1的定期账户占比）

def solve():
    from pyodide.http import open_url
    offices_csv = open_url("https://data.zuihe.com/dbd/core/state_04/offices.csv").read()
    staff_csv = open_url("https://data.zuihe.com/dbd/core/state_04/staff.csv").read()
    savings_products_csv = open_url("https://data.zuihe.com/dbd/core/state_04/savings_products.csv").read()
    clients_csv = open_url("https://data.zuihe.com/dbd/core/state_04/clients.csv").read()
    savings_accounts_csv = open_url("https://data.zuihe.com/dbd/core/state_04/savings_accounts.csv").read()
    savings_account_transactions_csv = open_url("https://data.zuihe.com/dbd/core/state_04/savings_account_transactions.csv").read()
    gl_accounts_csv = open_url("https://data.zuihe.com/dbd/core/state_04/gl_accounts.csv").read()
    journal_entries_csv = open_url("https://data.zuihe.com/dbd/core/state_04/journal_entries.csv").read()
    import sqlite3, pandas as pd
    from io import StringIO
    conn = sqlite3.connect(':memory:')
    pd.read_csv(StringIO(savings_products_csv)).to_sql('savings_products', conn, index=False, if_exists='replace')
    pd.read_csv(StringIO(savings_accounts_csv)).to_sql('savings_accounts', conn, index=False, if_exists='replace')
    row = conn.execute("""
        SELECT COUNT(*), SUM(CASE WHEN a.auto_renew=1 THEN 1 ELSE 0 END)
        FROM savings_accounts a JOIN savings_products sp ON a.product_id=sp.id
        WHERE sp.product_type IN ('FIXED_TERM','CERTIFICATE')
    """).fetchone()
    rate = round(row[1]/row[0]*100,1) if row[0] else 0
    print(f"total_fixed: {row[0]}")
    print(f"auto_renew_count: {row[1]}")
    print(f"renewal_rate: {rate}%")
    conn.close()