{
  "summary": [
    {
      "name": "pbl_assessment_record",
      "comment": "评估记录（total_score 派生 + 对齐判定）",
      "module": "pbl_assessment",
      "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": "record_uid",
      "comment": "记录UID",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "learner_id",
      "comment": "学习者",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "name": "session_id",
      "comment": "会话",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "blueprint_id",
      "comment": "蓝图",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "artifact_id",
      "comment": "产出物",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "evidence_id",
      "comment": "主证据",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "rubric_id",
      "comment": "Rubric",
      "null": false,
      "type": "bigint"
    },
    {
      "name": "scores_json",
      "comment": "逐准则得分",
      "null": true,
      "type": "json"
    },
    {
      "name": "total_score",
      "comment": "加权总分",
      "null": false,
      "type": "double",
      "precision": 18,
      "scale": 2
    },
    {
      "name": "max_score",
      "comment": "满分",
      "null": false,
      "type": "double",
      "precision": 18,
      "scale": 2
    },
    {
      "name": "band",
      "comment": "等级",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "alignment_json",
      "comment": "与学习目标对齐",
      "null": true,
      "type": "json"
    },
    {
      "name": "feedback_txt",
      "comment": "反馈",
      "null": true,
      "type": "text"
    },
    {
      "name": "assessor_type",
      "comment": "评估者类型",
      "null": false,
      "type": "str",
      "length": 64
    },
    {
      "name": "assessor_id",
      "comment": "评估者",
      "null": false,
      "type": "str",
      "length": 32
    },
    {
      "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_ar_uid",
      "unique": true,
      "fields": [
        "tenant_id",
        "record_uid"
      ]
    },
    {
      "name": "idx_ar_learner",
      "unique": false,
      "fields": [
        "tenant_id",
        "learner_id"
      ]
    },
    {
      "name": "PRIMARY",
      "unique": true,
      "fields": [
        "id"
      ]
    }
  ],
  "codes": []
}