{"blog_title":"0xf","provider_name":"Hatena Blog","blog_url":"https://0xf.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/ma2saka/","image_url":null,"url":"https://0xf.hatenablog.com/entry/2024/12/19/185246","description":"\u3061\u3087\u3063\u3068 Parquet \u30d5\u30a1\u30a4\u30eb\u306e\u30b9\u30ad\u30fc\u30de\u3092\u78ba\u8a8d\u3057\u305f\u3044\u3053\u3068\u304c\u3042\u3063\u305f\u3002 \u3053\u3093\u306a\u611f\u3058\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u66f8\u3044\u305f\u3002 import argparse import pyarrow.parquet as pq from pyarrow.parquet import ParquetFile def main(input_file: str) -> None: try: parquet_file: ParquetFile = pq.ParquetFile(input_file) schema = parquet_file.schema print(schema) except FileNotFoundError\u2026","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","python"],"width":"100%","height":"190","provider_url":"https://hatena.blog","type":"rich","author_name":"ma2saka","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2F0xf.hatenablog.com%2Fentry%2F2024%2F12%2F19%2F185246\" title=\"Parquet\u30d5\u30a1\u30a4\u30eb\u306e\u30b9\u30ad\u30fc\u30de\u3092\u53c2\u7167\u3059\u308b\uff08\u8b0e\u306e key_value \u30d5\u30a3\u30fc\u30eb\u30c9\u7de8\uff09 - 0xf\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"Parquet\u30d5\u30a1\u30a4\u30eb\u306e\u30b9\u30ad\u30fc\u30de\u3092\u53c2\u7167\u3059\u308b\uff08\u8b0e\u306e key_value \u30d5\u30a3\u30fc\u30eb\u30c9\u7de8\uff09","published":"2024-12-19 18:52:46"}