Thank you for the suggestion, but useNativeQuery=1 doesn't seem to reduce CPU usage. Usage example:

        String sql = Files.readString(Path.of("insert.sql"));
        String url = "jdbc:databricks://host.cloud.databricks.com:443/data;connschema=schema;transportMode=http;ssl=1;AuthMech=3;httpPath=/path;useNativeQuery=1";

        Properties props = new Properties();
        props.setProperty("user", "token");
        props.setProperty("password", "<token>");
        props.setProperty("useNativeQuery", "1");
        Driver driver = DriverManager.getDriver(url);
        try (Connection conn = driver.connect(url, props);
             Statement st = conn.createStatement()) {
            st.execute(sql);
        }

 Any other suggestions?