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    "title": "PyArrowでParquetファイルを読み取り表として確認する",
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      "接続先または入力ファイルを確認する",
      "Python環境へ対応版を導入し、入力と出力の型を確認します。"
    ],
    "suitable_for": "PyArrowでParquetファイルを読み取り表として確認するという目的を、この利用経路で短く試したい場面。",
    "unsuitable_for": "型変換を無確認で繰り返し情報を失う用途。",
    "purpose": "PyArrowでParquetファイルを読み取り表として確認する",
    "composition": "PyArrow + Python",
    "shortest_path": [
      "権利とschemaが分かるParquetを用意する",
      "PyArrowのParquet読取り経路でtableを取得する",
      "schemaと行数・代表値を確認する"
    ],
    "verification": "列型、null、行数が元データの仕様に合うかを確認します。",
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      "database/SQL",
      "data transformation"
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