create table central.tb_event_base
(
    `$product_id`        String                    default '',
    `$type`              String                    default '',
    `$event`             String                    default '',
    `$time`              Int64                     default 0,
    `$flush_time`        Int64                     default 0,
    `$package_name`      String                    default '',
    `$app_platform`      Int64                     default 0,
    `$channel_name`      String                    default '',
    `$app_version_name`  String                    default '',
    `$app_version_code`  String                    default '',
    `$oaid`              String                    default '',
    `$aaid`              String                    default '',
    `$android_id`        String                    default '',
    `$idfa`              String                    default '',
    `$imei`              String                    default '',
    `$idfv`              String                    default '',
    `$machine_id`        String                    default '',
    `$device_id`         String                    default '',
    `$ssid`              String                    default '',
    `$reg_time`          DateTime('Asia/Shanghai') default now(),
    `$brand`             String                    default '',
    `$model`             String                    default '',
    `$os_version`        String                    default '',
    `$ip`                String                    default '',
    `$city`              String                    default '',
    `$country`           String                    default '',
    `$app_used_time`     Int64                     default 0,
    `$payment_amount`    Int64                     default 0,
    `$payment_currency`  String                    default '',
    `$payment_method`    String                    default '',
    `$payment_item_name` String                    default '',
    `$page_name`         String                    default '',
    `$page_used_time`    Int64                     default 0,
    `$payment_order_no`  String                    default '',
    `$session_id`        String                    default ''
)
    engine = ReplacingMergeTree
        PARTITION BY toYYYYMM(fromUnixTimestamp64Milli(`$time`))
        ORDER BY (`$product_id`, `$type`, `$event`, `$device_id`, `$time`)
        SETTINGS index_granularity = 8192;