{
  "summary": [
    {
      "name": "pbl_runtime_event",
      "comment": "运行时事件（append-only，按月 RANGE 分区）",
      "module": "pbl_runtime_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": "event_uid",
      "comment": "事件UID",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "session_id",
      "comment": "会话",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "world_id",
      "comment": "世界",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "actor_id",
      "comment": "触发者",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "event_type",
      "comment": "事件类型",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "payload_json",
      "comment": "事件体",
      "null": true,
      "type": "json"
    },
    {
      "name": "causation_id",
      "comment": "因果链",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "state_version",
      "comment": "状态版本",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "seq",
      "comment": "会话内单调序号",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "occurred_at",
      "comment": "发生时间",
      "null": false,
      "type": "datetime"
    },
    {
      "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_re_uid",
      "unique": true,
      "fields": [
        "tenant_id",
        "event_uid",
        "occurred_at"
      ]
    },
    {
      "name": "idx_re_session_seq",
      "unique": false,
      "fields": [
        "tenant_id",
        "session_id",
        "seq"
      ]
    },
    {
      "name": "PRIMARY",
      "unique": true,
      "fields": [
        "id"
      ]
    }
  ],
  "codes": [
    {
      "field": "event_type",
      "appcode": "pbl_event_type"
    }
  ]
}