{
  "schema_version": "REFERENCE-1.0",
  "as_of": "2026-10-23",
  "item": {
    "id": "METHOD-0323",
    "kind": "METHOD",
    "title": "jqでJSONの配列をキー別にまとめる",
    "last_verified": "2026-10-23",
    "currentness": "VERIFIED_AS_OF",
    "revision": 1,
    "requirements": [
      "有効なJSON",
      "shellの引用符の理解",
      "原典と導入済みversionの対応を確認し、権限のある検証用入力・別の出力先を用意する"
    ],
    "suitable_for": "JSON配列から区分別の件数を取り出す場面。",
    "unsuitable_for": "入れ子の形を確認せずfilterを使い回す用途。",
    "purpose": "jqでJSONの配列をキー別にまとめる",
    "composition": "jq",
    "shortest_path": [
      "配列の要素型と集計キーを決める",
      "group_byとmapで区分ごとの件数を計算する",
      "欠落キーと空配列の結果を照合する"
    ],
    "verification": "小さな手計算例と照合し、nullと値の欠落を区別します。",
    "coverage": [
      "data transformation"
    ],
    "canonical_url": "https://enterprise-ai-dictionary.com/reference/methods/method-0323",
    "retrieval": "FULL",
    "publication": "PUBLIC_NO_ADS",
    "index": "INDEX",
    "ads": "OFF",
    "link_policy": "DIRECT"
  },
  "relations": [
    {
      "id": "REFREL-553a878f6c119b8c",
      "subject_id": "SRC-EVID-REF-0015",
      "predicate": "supports",
      "object_id": "METHOD-0323",
      "scope_note": "公開一次資料に基づく利用経路。",
      "last_verified": "2026-10-23",
      "source_ids": [
        "SRC-EVID-REF-0015"
      ]
    },
    {
      "id": "REFREL-bbe12cadf0af2e92",
      "subject_id": "TOOL-0015",
      "predicate": "supports",
      "object_id": "METHOD-0323",
      "scope_note": "公開一次資料に基づく利用経路。",
      "last_verified": "2026-10-23",
      "source_ids": [
        "SRC-EVID-REF-0015"
      ]
    },
    {
      "id": "REFREL-f5288a37be2da4e7",
      "subject_id": "METHOD-0323",
      "predicate": "uses",
      "object_id": "TOOL-0015",
      "scope_note": "公開一次資料に基づく利用経路。",
      "last_verified": "2026-10-23",
      "source_ids": [
        "SRC-EVID-REF-0015"
      ]
    },
    {
      "id": "REFREL-47f3149138644bae",
      "subject_id": "METHOD-0323",
      "predicate": "requires",
      "object_id": "IDX-C03-004",
      "scope_note": "検証・運用上の関連概念。製品の基本定義とは区別する。",
      "last_verified": "2026-10-23",
      "source_ids": [
        "SRC-EVID-REF-0015"
      ]
    },
    {
      "id": "REFREL-726c29c2c42ce56b",
      "subject_id": "IDX-C03-004",
      "predicate": "explains",
      "object_id": "METHOD-0323",
      "scope_note": "利用結果の確認や運用上の注意点を読む経路。",
      "last_verified": "2026-10-23",
      "source_ids": [
        "SRC-EVID-REF-0015"
      ]
    }
  ]
}