{
  "summary": [
    {
      "name": "pbl_session_member",
      "comment": "会话成员（复用 world_session，不污染基表）",
      "module": "pbl_scense_ext",
      "engine": "mariadb",
      "charset": "utf8mb4",
      "tenant_scoped": true
    }
  ],
  "fields": [
    {
      "name": "tenant_id",
      "comment": "租户ID(强制打头)",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "id",
      "comment": "主键",
      "null": false,
      "type": "int",
      "length": 20,
      "unsigned": true,
      "auto_increment": true
    },
    {
      "name": "session_id",
      "comment": "会话",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "user_id",
      "comment": "用户",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "role_code",
      "comment": "角色",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "team_id",
      "comment": "团队",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "joined_at",
      "comment": "加入时间",
      "null": true,
      "type": "datetime"
    },
    {
      "name": "last_seen_at",
      "comment": "心跳",
      "null": true,
      "type": "datetime"
    },
    {
      "name": "state_version",
      "comment": "已见状态版本",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "status",
      "comment": "状态",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "created_at",
      "comment": "创建时间",
      "null": false,
      "type": "datetime"
    },
    {
      "name": "updated_at",
      "comment": "更新时间",
      "null": false,
      "type": "datetime"
    }
  ],
  "indexes": [
    {
      "name": "uk_sm",
      "unique": true,
      "fields": [
        "tenant_id",
        "session_id",
        "user_id"
      ]
    },
    {
      "name": "PRIMARY",
      "unique": true,
      "fields": [
        "id"
      ]
    }
  ],
  "codes": []
}