-- user_login_logs: one row per successful login. user_devices.platform is the device type.

CREATE TABLE IF NOT EXISTS user_login_logs (
    id            BIGINT NOT NULL AUTO_INCREMENT COMMENT '行 id，表内自增',
    user_id       BIGINT NOT NULL COMMENT '登录用户',
    device_id     BIGINT UNSIGNED NOT NULL COMMENT '客户端设备 id',
    device_type   VARCHAR(16) NOT NULL COMMENT '设备类型：ios/android/harmony/windows/macos/web',
    device_name   VARCHAR(128) NOT NULL DEFAULT '' COMMENT '设备展示名',
    app_version   VARCHAR(32) NOT NULL DEFAULT '' COMMENT '客户端版本',
    language      VARCHAR(16) NOT NULL DEFAULT '' COMMENT '登录语言',
    ip            VARCHAR(64) NOT NULL DEFAULT '' COMMENT 'PROXY RealIP',
    created_at    DATETIME(3) NOT NULL COMMENT '本次登录时间',
    PRIMARY KEY (id),
    KEY idx_user_created (user_id, created_at)
) COMMENT='用户登录记录。每次成功登录追加一行；当前设备以 user_devices 为准';

ALTER TABLE user_devices
    MODIFY COLUMN platform VARCHAR(32) NOT NULL DEFAULT '' COMMENT '设备类型：ios/android/harmony/windows/macos/web';