{"id":478342,"date":"2023-08-09T09:31:27","date_gmt":"2023-08-09T09:31:27","guid":{"rendered":""},"modified":"2023-09-05T11:16:35","modified_gmt":"2023-09-05T11:16:35","slug":"parquet","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/parquet\/","title":{"rendered":"\u5bc4\u6728\u7d30\u5de5"},"content":{"rendered":"

Parquet \u306f\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u4fdd\u5b58\u304a\u3088\u3073\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u305f\u5217\u6307\u5411\u306e\u30b9\u30c8\u30ec\u30fc\u30b8 \u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u3059\u30022013 \u5e74\u306b Cloudera \u3068 Twitter \u306b\u3088\u3063\u3066\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002Parquet \u306e\u4e3b\u306a\u76ee\u7684\u306f\u3001\u30d3\u30c3\u30b0 \u30c7\u30fc\u30bf\u5206\u6790\u306e\u305f\u3081\u306e\u30c7\u30fc\u30bf \u30b9\u30c8\u30ec\u30fc\u30b8\u3068\u51e6\u7406\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf \u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u3001\u30c7\u30fc\u30bf \u30ec\u30a4\u30af\u3001Apache Hadoop \u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306b\u6700\u9069\u306a\u5f62\u5f0f\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5bc4\u6728\u7d30\u5de5\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2<\/h2>\n

Parquet \u306e\u8d77\u6e90\u306f\u3001\u30d3\u30c3\u30b0 \u30c7\u30fc\u30bf\u306e\u52b9\u7387\u7684\u306a\u4fdd\u5b58\u3068\u51e6\u7406\u306e\u5fc5\u8981\u6027\u306b\u307e\u3067\u9061\u308a\u307e\u3059\u3002\u30d3\u30c3\u30b0 \u30c7\u30fc\u30bf \u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u53f0\u982d\u306b\u3088\u308a\u3001\u5f93\u6765\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u5f62\u5f0f\u3067\u306f\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u51e6\u7406\u306b\u8ab2\u984c\u304c\u751f\u3058\u307e\u3057\u305f\u3002Parquet \u306e\u958b\u767a\u306f\u3001\u5217\u6307\u5411\u30b9\u30c8\u30ec\u30fc\u30b8 \u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3053\u308c\u3089\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u307e\u3057\u305f\u3002<\/p>\n

Parquet \u304c\u521d\u3081\u3066\u8a00\u53ca\u3055\u308c\u305f\u306e\u306f\u30012013 \u5e74\u306b Twitter \u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c Symposium on Operating Systems Principles (SOSP) \u3067\u767a\u8868\u3057\u305f\u7814\u7a76\u8ad6\u6587\u3067\u3059\u3002\u3053\u306e\u8ad6\u6587\u3067\u306f\u3001Parquet \u5f62\u5f0f\u304c\u7d39\u4ecb\u3055\u308c\u3001\u5727\u7e2e\u306e\u5411\u4e0a\u3001\u30af\u30a8\u30ea \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3001\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u578b\u306e\u30b5\u30dd\u30fc\u30c8\u306a\u3069\u306e\u5229\u70b9\u304c\u5f37\u8abf\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

Parquet \u306e\u8a73\u7d30\u60c5\u5831: \u30c8\u30d4\u30c3\u30af\u306e\u62e1\u5f35<\/h2>\n

Parquet \u306f\u5217\u578b\u30b9\u30c8\u30ec\u30fc\u30b8 \u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u30c7\u30fc\u30bf\u306f\u884c\u3067\u306f\u306a\u304f\u5217\u306b\u683c\u7d0d\u3055\u308c\u3001\u6574\u7406\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u8a2d\u8a08\u306b\u3088\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u7279\u306b\u5206\u6790\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u6709\u5229\u3067\u3059\u3002Parquet \u306e\u4e3b\u306a\u7279\u5fb4\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

    \n
  1. \n

    \u5217\u578b\u30b9\u30c8\u30ec\u30fc\u30b8:<\/strong> Parquet \u306f\u5404\u5217\u3092\u500b\u5225\u306b\u4fdd\u5b58\u3059\u308b\u305f\u3081\u3001\u5727\u7e2e\u7387\u304c\u5411\u4e0a\u3057\u3001\u30af\u30a8\u30ea\u5b9f\u884c\u4e2d\u306b\u5fc5\u8981\u306a\u5217\u306e\u307f\u3092\u8aad\u307f\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

  2. \n

    \u5727\u7e2e\u6280\u8853:<\/strong> Parquet \u306f\u3001Snappy\u3001Gzip\u3001Zstandard \u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u5727\u7e2e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u5bb9\u91cf\u3092\u524a\u6e1b\u3057\u3001\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u53d6\u308a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n<\/li>\n

  3. \n

    \u30c7\u30fc\u30bf\u578b\u306e\u30b5\u30dd\u30fc\u30c8:<\/strong> \u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b (\u6574\u6570\u3001\u6587\u5b57\u5217\u3001\u30d6\u30fc\u30eb\u5024\u306a\u3069) \u3084\u8907\u5408\u578b (\u914d\u5217\u3001\u30de\u30c3\u30d7\u3001\u69cb\u9020\u4f53\u306a\u3069) \u3092\u542b\u3080\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u578b\u3092\u5e45\u5e83\u304f\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

  4. \n

    \u30b9\u30ad\u30fc\u30de\u306e\u9032\u5316:<\/strong> Parquet \u306f\u30b9\u30ad\u30fc\u30de\u306e\u9032\u5316\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u65e2\u5b58\u306e\u30c7\u30fc\u30bf\u3068\u306e\u4e92\u63db\u6027\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u5217\u3092\u8ffd\u52a0\u3001\u524a\u9664\u3001\u307e\u305f\u306f\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

  5. \n

    \u8ff0\u8a9e\u30d7\u30c3\u30b7\u30e5\u30c0\u30a6\u30f3:<\/strong> \u3053\u306e\u6a5f\u80fd\u306f\u3001\u30af\u30a8\u30ea\u8ff0\u8a9e\u3092\u30b9\u30c8\u30ec\u30fc\u30b8 \u30ec\u30a4\u30e4\u30fc\u306b\u30d7\u30c3\u30b7\u30e5\u3057\u3001\u30af\u30a8\u30ea\u5b9f\u884c\u4e2d\u306b\u8aad\u307f\u53d6\u308b\u5fc5\u8981\u304c\u3042\u308b\u30c7\u30fc\u30bf\u306e\u91cf\u3092\u524a\u6e1b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

  6. \n

    \u4e26\u5217\u51e6\u7406:<\/strong> Parquet \u30d5\u30a1\u30a4\u30eb\u306f\u5c0f\u3055\u306a\u884c\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u5272\u3067\u304d\u308b\u305f\u3081\u3001Hadoop \u306a\u3069\u306e\u5206\u6563\u74b0\u5883\u3067\u306e\u4e26\u5217\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

  7. \n

    \u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4e92\u63db\u6027:<\/strong> Parquet \u306f\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001\u7570\u306a\u308b\u30b7\u30b9\u30c6\u30e0\u9593\u3067\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30c7\u30fc\u30bf\u4ea4\u63db\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u5bc4\u6728\u7d30\u5de5\u306e\u5185\u90e8\u69cb\u9020: \u5bc4\u6728\u7d30\u5de5\u306e\u4ed5\u7d44\u307f<\/h2>\n

    Parquet \u30d5\u30a1\u30a4\u30eb\u306f\u3001\u52b9\u7387\u7684\u306a\u30b9\u30c8\u30ec\u30fc\u30b8\u3068\u51e6\u7406\u6a5f\u80fd\u306b\u8ca2\u732e\u3059\u308b\u3044\u304f\u3064\u304b\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

      \n
    1. \n

      \u30d5\u30a1\u30a4\u30eb\u306e\u30e1\u30bf\u30c7\u30fc\u30bf:<\/strong> \u30d5\u30a1\u30a4\u30eb\u306e\u30b9\u30ad\u30fc\u30de\u3001\u4f7f\u7528\u3055\u308c\u308b\u5727\u7e2e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3001\u305d\u306e\u4ed6\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

    2. \n

      \u884c\u30b0\u30eb\u30fc\u30d7:<\/strong> \u5404 Parquet \u30d5\u30a1\u30a4\u30eb\u306f\u884c\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u5272\u3055\u308c\u3001\u3055\u3089\u306b\u5217\u306b\u5206\u5272\u3055\u308c\u307e\u3059\u3002\u884c\u30b0\u30eb\u30fc\u30d7\u306f\u4e26\u5217\u51e6\u7406\u3068\u30c7\u30fc\u30bf\u5727\u7e2e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/li>\n

    3. \n

      \u5217\u306e\u30e1\u30bf\u30c7\u30fc\u30bf:<\/strong> Parquet \u306f\u3001\u5404\u5217\u306b\u5bfe\u3057\u3066\u3001\u30c7\u30fc\u30bf\u578b\u3001\u5727\u7e2e\u30b3\u30fc\u30c7\u30c3\u30af\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u60c5\u5831\u306a\u3069\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    4. \n

      \u30c7\u30fc\u30bf\u30da\u30fc\u30b8:<\/strong> \u30c7\u30fc\u30bf \u30da\u30fc\u30b8\u306b\u306f\u5b9f\u969b\u306e\u5217\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u52b9\u7387\u3092\u6700\u5927\u5316\u3059\u308b\u305f\u3081\u306b\u500b\u5225\u306b\u5727\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

    5. \n

      \u8f9e\u66f8\u30da\u30fc\u30b8\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09:<\/strong> \u7e70\u308a\u8fd4\u3057\u5024\u3092\u6301\u3064\u5217\u306e\u5834\u5408\u3001Parquet \u306f\u8f9e\u66f8\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u4e00\u610f\u306e\u5024\u3092\u683c\u7d0d\u3057\u3001\u30c7\u30fc\u30bf \u30da\u30fc\u30b8\u5185\u3067\u305d\u308c\u3089\u3092\u53c2\u7167\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    6. \n

      \u7d71\u8a08\uff1a<\/strong> Parquet \u306f\u3001\u6700\u5c0f\u5024\u3084\u6700\u5927\u5024\u306a\u3069\u306e\u5404\u5217\u306e\u7d71\u8a08\u60c5\u5831\u3082\u4fdd\u5b58\u3067\u304d\u308b\u305f\u3081\u3001\u30af\u30a8\u30ea\u306e\u6700\u9069\u5316\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

      Parquet\u306e\u4e3b\u306a\u7279\u5fb4\u306e\u5206\u6790<\/h2>\n

      Parquet \u306e\u4e3b\u306a\u6a5f\u80fd\u306f\u3001\u30d3\u30c3\u30b0 \u30c7\u30fc\u30bf\u51e6\u7406\u306b\u304a\u3051\u308b\u305d\u306e\u5e45\u5e83\u3044\u63a1\u7528\u3068\u4eba\u6c17\u306b\u8ca2\u732e\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306e\u3044\u304f\u3064\u304b\u3092\u5206\u6790\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

        \n
      1. \n

        \u52b9\u7387\u7684\u306a\u5727\u7e2e:<\/strong> Parquet \u306e\u5217\u6307\u5411\u30b9\u30c8\u30ec\u30fc\u30b8\u3068\u5727\u7e2e\u6280\u8853\u306b\u3088\u308a\u3001\u30d5\u30a1\u30a4\u30eb \u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u304f\u306a\u308a\u3001\u30b9\u30c8\u30ec\u30fc\u30b8 \u30b3\u30b9\u30c8\u304c\u524a\u6e1b\u3055\u308c\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

      2. \n

        \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316:<\/strong> Parquet \u306f\u30af\u30a8\u30ea\u4e2d\u306b\u5fc5\u8981\u306a\u5217\u306e\u307f\u3092\u8aad\u307f\u53d6\u308b\u3053\u3068\u3067 I\/O \u64cd\u4f5c\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u30af\u30a8\u30ea\u51e6\u7406\u3092\u9ad8\u901f\u5316\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

      3. \n

        \u30b9\u30ad\u30fc\u30de\u306e\u67d4\u8edf\u6027:<\/strong> \u30b9\u30ad\u30fc\u30de\u9032\u5316\u306e\u30b5\u30dd\u30fc\u30c8\u306b\u3088\u308a\u3001\u65e2\u5b58\u306e\u30c7\u30fc\u30bf\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u3001\u4fca\u654f\u306a\u30c7\u30fc\u30bf \u30b9\u30ad\u30fc\u30de\u5909\u66f4\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

      4. \n

        \u30af\u30ed\u30b9\u8a00\u8a9e\u30b5\u30dd\u30fc\u30c8:<\/strong> Parquet \u30d5\u30a1\u30a4\u30eb\u306f\u3001Java\u3001Python\u3001C++ \u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u4f7f\u7528\u3067\u304d\u308b\u305f\u3081\u3001\u591a\u69d8\u306a\u30c7\u30fc\u30bf\u51e6\u7406\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u4f7f\u7528\u3067\u304d\u308b\u591a\u76ee\u7684\u306a\u5f62\u5f0f\u3067\u3059\u3002<\/p>\n<\/li>\n

      5. \n

        \u30c7\u30fc\u30bf\u30bf\u30a4\u30d7\u306e\u8c4a\u5bcc\u3055:<\/strong> \u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf \u30bf\u30a4\u30d7\u3092\u5e45\u5e83\u304f\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u3067\u3001\u5e45\u5e83\u3044\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306b\u5bfe\u5fdc\u3057\u3001\u30d3\u30c3\u30b0 \u30c7\u30fc\u30bf\u5206\u6790\u3067\u3088\u304f\u898b\u3089\u308c\u308b\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u3082\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

      6. \n

        \u76f8\u4e92\u904b\u7528\u6027:<\/strong> \u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u4ed5\u69d8\u3092\u6301\u3064\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u3001Parquet \u306f\u3055\u307e\u3056\u307e\u306a\u30c4\u30fc\u30eb\u3084\u30b7\u30b9\u30c6\u30e0\u9593\u306e\u76f8\u4e92\u904b\u7528\u6027\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u5bc4\u6728\u7d30\u5de5\u306e\u7a2e\u985e\u3068\u305d\u306e\u7279\u5fb4<\/h2>\n

        Parquet \u306b\u306f\u4e3b\u306b 2 \u3064\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u3042\u308a\u307e\u3059\u3002 \u5bc4\u6728\u7d30\u5de5-1.0<\/strong> \u305d\u3057\u3066 \u5bc4\u6728\u7d30\u5de5-2.0<\/strong>\u5f8c\u8005\u306f\u3001 \u30a2\u30d1\u30c3\u30c1\u30a2\u30ed\u30fc\u30d1\u30fc\u30b1\u30c3\u30c8<\/strong> Arrow \u30c7\u30fc\u30bf\u5f62\u5f0f\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u4e21\u65b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u57fa\u672c\u7684\u306a\u6982\u5ff5\u3068\u5229\u70b9\u306f\u540c\u3058\u3067\u3059\u304c\u3001\u4e92\u63db\u6027\u3068\u6a5f\u80fd\u30bb\u30c3\u30c8\u306e\u70b9\u3067\u7570\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306f 2 \u3064\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u6bd4\u8f03\u3067\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n\n
        \u7279\u5fb4<\/th>\n\u5bc4\u6728\u7d30\u5de5-1.0<\/th>\nParquet-2.0 (Apache Arrow Parquet)<\/th>\n<\/tr>\n<\/thead>\n
        \u30b9\u30ad\u30fc\u30de\u306e\u9032\u5316<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059<\/td>\n<\/tr>\n
        \u67f1\u72b6\u5727\u7e2e<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059 (Gzip\u3001Snappy \u306a\u3069)<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059 (Gzip\u3001Snappy\u3001LZ4\u3001Zstd)<\/td>\n<\/tr>\n
        \u8f9e\u66f8\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059<\/td>\n<\/tr>\n
        \u30cd\u30b9\u30c8\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306e\u30b5\u30dd\u30fc\u30c8<\/td>\n\u8907\u5408\u578b\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u9650\u5b9a\u7684<\/td>\n\u8907\u5408\u578b\u306e\u5b8c\u5168\u30b5\u30dd\u30fc\u30c8<\/td>\n<\/tr>\n
        \u4e92\u63db\u6027<\/td>\n\u307b\u3068\u3093\u3069\u306e\u30c4\u30fc\u30eb\u3068\u4e92\u63db\u6027\u304c\u3042\u308a\u307e\u3059<\/td>\nArrow\u306b\u3088\u308b\u4e92\u63db\u6027\u306e\u5411\u4e0a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Parquet \u306e\u4f7f\u3044\u65b9\u3001\u554f\u984c\u70b9\u3001\u89e3\u6c7a\u7b56<\/h2>\n

        \u5bc4\u6728\u7d30\u5de5\u306e\u4f7f\u3044\u65b9<\/h3>\n

        Parquet \u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u96c6\u7d04\u578b\u30b7\u30ca\u30ea\u30aa\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

          \n
        1. \n

          \u30c7\u30fc\u30bf \u30a6\u30a7\u30a2\u30cf\u30a6\u30b8\u30f3\u30b0:<\/strong> Parquet \u306f\u3001\u30af\u30a8\u30ea \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u9ad8\u901f\u3067\u30b9\u30c8\u30ec\u30fc\u30b8\u304c\u52b9\u7387\u7684\u3067\u3042\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf \u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

        2. \n

          \u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u51e6\u7406:<\/strong> Hadoop \u3084\u305d\u306e\u4ed6\u306e\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u51e6\u7406\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u306f\u3001\u4e26\u5217\u51e6\u7406\u6a5f\u80fd\u3092\u5099\u3048\u3066\u3044\u308b\u305f\u3081\u3001Parquet \u30d5\u30a1\u30a4\u30eb\u304c\u597d\u307e\u3057\u3044\u9078\u629e\u80a2\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

        3. \n

          \u30c7\u30fc\u30bf\u30ec\u30a4\u30af:<\/strong> Parquet \u306f\u3001\u30c7\u30fc\u30bf \u30ec\u30a4\u30af\u306b\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf \u30bf\u30a4\u30d7\u3092\u4fdd\u5b58\u3059\u308b\u305f\u3081\u306e\u4e00\u822c\u7684\u306a\u5f62\u5f0f\u3067\u3042\u308a\u3001\u5206\u6790\u3068\u6d1e\u5bdf\u306e\u62bd\u51fa\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

        4. \n

          \u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30c7\u30fc\u30bf:<\/strong> Parquet \u306f\u30b9\u30ad\u30fc\u30de\u306e\u9032\u5316\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u9032\u5316\u3059\u308b\u30c7\u30fc\u30bf \u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u51e6\u7406\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u554f\u984c\u3068\u89e3\u6c7a\u7b56<\/h3>\n
            \n
          1. \n

            \u4e92\u63db\u6027\u306e\u554f\u984c:<\/strong> \u4e00\u90e8\u306e\u53e4\u3044\u30c4\u30fc\u30eb\u3067\u306f\u3001Parquet-2.0 \u306e\u30b5\u30dd\u30fc\u30c8\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u306f\u3001Parquet-1.0 \u3092\u4f7f\u7528\u3059\u308b\u304b\u3001\u30c4\u30fc\u30eb\u3092\u66f4\u65b0\u3057\u3066\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<\/li>\n

          2. \n

            \u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u8907\u96d1\u3055:<\/strong> \u67d4\u8edf\u306a\u30b9\u30ad\u30fc\u30de\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u3001\u614e\u91cd\u306a\u691c\u8a0e\u304c\u5fc5\u8981\u3067\u3059\u3002\u30c7\u30fc\u30bf \u30bd\u30fc\u30b9\u9593\u3067\u7d71\u4e00\u3055\u308c\u305f\u30b9\u30ad\u30fc\u30de\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u7d71\u5408\u304c\u7c21\u5358\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

          3. \n

            \u30c7\u30fc\u30bf\u54c1\u8cea\u306b\u95a2\u3059\u308b\u61f8\u5ff5:<\/strong> \u4e0d\u6b63\u306a\u30c7\u30fc\u30bf\u578b\u3084\u30b9\u30ad\u30fc\u30de\u306e\u5909\u66f4\u306f\u3001\u30c7\u30fc\u30bf\u54c1\u8cea\u306e\u554f\u984c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30c7\u30fc\u30bf\u691c\u8a3c\u3068\u30b9\u30ad\u30fc\u30de\u9032\u5316\u306e\u5b9f\u8df5\u306b\u3088\u308a\u3001\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

          4. \n

            \u30b3\u30fc\u30eb\u30c9\u30b9\u30bf\u30fc\u30c8\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9:<\/strong> Parquet \u30d5\u30a1\u30a4\u30eb\u306e\u6700\u521d\u306e\u6570\u884c\u306e\u8aad\u307f\u53d6\u308a\u306f\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u89e3\u6790\u306b\u3088\u308a\u9045\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4e8b\u524d\u30ad\u30e3\u30c3\u30b7\u30e5\u307e\u305f\u306f\u6700\u9069\u5316\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u3053\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u4e3b\u306a\u7279\u5fb4\u3068\u305d\u306e\u4ed6\u306e\u6bd4\u8f03<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
            \u7279\u6027<\/th>\n\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n
            \u4fdd\u5b58\u5f62\u5f0f<\/td>\n\u67f1\u72b6<\/td>\n<\/tr>\n
            \u5727\u7e2e\u30aa\u30d7\u30b7\u30e7\u30f3<\/td>\nGzip\u3001Snappy\u3001LZ4\u3001Zstandard<\/td>\n<\/tr>\n
            \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u72ec\u7acb\u6027<\/td>\n\u306f\u3044<\/td>\n<\/tr>\n
            \u30c7\u30fc\u30bf\u578b\u306e\u30b5\u30dd\u30fc\u30c8<\/td>\n\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u304a\u3088\u3073\u8907\u5408\u30c7\u30fc\u30bf\u578b\u306e\u5e83\u7bc4\u306a\u30b5\u30dd\u30fc\u30c8<\/td>\n<\/tr>\n
            \u30b9\u30ad\u30fc\u30de\u306e\u9032\u5316<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059<\/td>\n<\/tr>\n
            \u8ff0\u8a9e\u30d7\u30c3\u30b7\u30e5\u30c0\u30a6\u30f3<\/td>\n\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059<\/td>\n<\/tr>\n
            \u4e26\u5217\u51e6\u7406<\/td>\n\u884c\u30b0\u30eb\u30fc\u30d7\u3092\u901a\u3058\u3066\u6709\u52b9\u5316<\/td>\n<\/tr>\n
            \u76f8\u4e92\u904b\u7528\u6027<\/td>\nApache Hadoop\u3001Apache Spark\u3001Apache Drill\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u5bc4\u6728\u7d30\u5de5\u306b\u95a2\u3059\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n

            Parquet \u306e\u5c06\u6765\u306f\u6709\u671b\u306b\u898b\u3048\u3001\u6a5f\u80fd\u3068\u7d71\u5408\u306e\u6539\u5584\u306b\u5411\u3051\u305f\u7d99\u7d9a\u7684\u306a\u53d6\u308a\u7d44\u307f\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u958b\u767a\u3068\u63a1\u7528\u306e\u4e3b\u306a\u5206\u91ce\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

              \n
            1. \n

              \u6700\u9069\u5316\u3055\u308c\u305f\u30af\u30a8\u30ea\u30a8\u30f3\u30b8\u30f3:<\/strong> Apache Arrow\u3001Apache Drill\u3001Presto \u306a\u3069\u306e\u30af\u30a8\u30ea \u30a8\u30f3\u30b8\u30f3\u306e\u7d99\u7d9a\u7684\u306a\u9032\u6b69\u306b\u3088\u308a\u3001Parquet \u306e\u30af\u30a8\u30ea \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u3055\u3089\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

            2. \n

              \u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30b5\u30dd\u30fc\u30c8:<\/strong> Parquet \u306f\u3001Apache Kafka \u3084 Apache Flink \u306a\u3069\u306e\u65b0\u8208\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3068\u3068\u3082\u306b\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u30c7\u30fc\u30bf \u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3068\u5206\u6790\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n

            3. \n

              \u30af\u30e9\u30a6\u30c9 \u30c7\u30fc\u30bf \u30ec\u30a4\u30af:<\/strong> Amazon S3 \u3084 Azure Data Lake Storage \u306a\u3069\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u3088\u3063\u3066\u4fc3\u9032\u3055\u308c\u308b\u30af\u30e9\u30a6\u30c9 \u30c7\u30fc\u30bf \u30ec\u30a4\u30af\u306e\u5897\u52a0\u306b\u3088\u308a\u3001\u30b3\u30b9\u30c8\u52b9\u7387\u3068\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3088\u308a Parquet \u306e\u63a1\u7528\u304c\u4fc3\u9032\u3055\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/li>\n

            4. \n

              AI\u3068ML\u306e\u7d71\u5408:<\/strong> Parquet \u306f\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u52b9\u7387\u7684\u306b\u4fdd\u5b58\u3059\u308b\u305f\u3081\u3001\u6a5f\u68b0\u5b66\u7fd2\u3084\u4eba\u5de5\u77e5\u80fd\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u6e96\u5099\u3068\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0 \u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u4e0d\u53ef\u6b20\u306a\u90e8\u5206\u3067\u3042\u308a\u7d9a\u3051\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/li>\n<\/ol>\n

              \u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3092Parquet\u3067\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u307e\u305f\u306fParquet\u3068\u95a2\u9023\u4ed8\u3051\u308b\u65b9\u6cd5<\/h2>\n

              \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u70b9\u3067 Parquet \u306e\u30e1\u30ea\u30c3\u30c8\u3092\u4eab\u53d7\u3067\u304d\u307e\u3059\u3002<\/p>\n

                \n
              1. \n

                \u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u30c7\u30fc\u30bf\u5727\u7e2e:<\/strong> \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f Parquet \u3092\u4f7f\u7528\u3057\u3066\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3001\u5f8c\u7d9a\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5fdc\u7b54\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

              2. \n

                \u30ed\u30b0\u51e6\u7406\u3068\u5206\u6790:<\/strong> Parquet \u5f62\u5f0f\u3067\u53ce\u96c6\u3055\u308c\u305f\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc \u30ed\u30b0\u306f\u3001\u30d3\u30c3\u30b0 \u30c7\u30fc\u30bf\u51e6\u7406\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u5206\u6790\u3067\u304d\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6700\u9069\u5316\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u3059\u308b\u8cb4\u91cd\u306a\u6d1e\u5bdf\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

              3. \n

                \u30c7\u30fc\u30bf\u4ea4\u63db\u3068\u7d71\u5408:<\/strong> \u3055\u307e\u3056\u307e\u306a\u30bd\u30fc\u30b9\u304b\u3089\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30c7\u30fc\u30bf\u3092 Parquet \u5f62\u5f0f\u306b\u5909\u63db\u3057\u3066\u4fdd\u5b58\u3067\u304d\u308b\u305f\u3081\u3001\u30d3\u30c3\u30b0 \u30c7\u30fc\u30bf \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3084\u5206\u6790\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u7d71\u5408\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

              4. \n

                \u30ea\u30bd\u30fc\u30b9\u306e\u6700\u9069\u5316:<\/strong> Parquet \u306e\u5217\u6307\u5411\u30b9\u30c8\u30ec\u30fc\u30b8\u3068\u8ff0\u8a9e\u30d7\u30c3\u30b7\u30e5\u30c0\u30a6\u30f3\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30ea\u30bd\u30fc\u30b9\u306e\u4f7f\u7528\u3092\u6700\u9069\u5316\u3057\u3001\u5168\u4f53\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

                \u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n

                Parquet \u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                  \n
                1. Apache Parquet \u516c\u5f0f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8<\/a><\/li>\n
                2. Parquet \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u4ed5\u69d8<\/a><\/li>\n
                3. Parquet \u306b\u95a2\u3059\u308b Cloudera \u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0 \u30d6\u30ed\u30b0<\/a><\/li>\n
                4. Apache Arrow \u516c\u5f0f\u30b5\u30a4\u30c8<\/a> (Parquet-2.0 \u306b\u95a2\u3059\u308b\u60c5\u5831)<\/li>\n<\/ol>","protected":false},"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478342","wiki","type-wiki","status-publish","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Parquet: A Comprehensive Guide<\/mark>","faq_items":[{"question":"What is Parquet?","answer":"

                  Parquet is a columnar storage file format designed for efficient storage and processing of large datasets. It is particularly well-suited for big data analytics, data warehousing, and Apache Hadoop environments.<\/p>"},{"question":"How did Parquet originate, and when was it first mentioned?","answer":"

                  Parquet was developed as an open-source project by Cloudera and Twitter in 2013. It was first mentioned in a research paper presented by Twitter engineers at the Symposium on Operating Systems Principles (SOSP) in the same year.<\/p>"},{"question":"What are the key features of Parquet?","answer":"

                  Parquet offers several key features, including columnar storage, efficient compression techniques, support for various data types (primitive and complex), schema evolution, predicate pushdown, and parallel processing.<\/p>"},{"question":"How does Parquet work internally?","answer":"

                  Internally, Parquet files consist of file metadata, row groups, column metadata, data pages, and optional dictionary pages. This design allows for optimized storage, fast query processing, and support for various data types.<\/p>"},{"question":"What are the different types of Parquet versions, and how do they differ?","answer":"

                  Parquet comes in two main versions: Parquet-1.0 and Parquet-2.0 (Apache Arrow Parquet). While both versions share core concepts, Parquet-2.0 offers improved compatibility with Arrow-based systems and additional compression options.<\/p>"},{"question":"In what ways can Parquet be used, and what problems does it solve?","answer":"

                  Parquet finds applications in data warehousing, big data processing, data lakes, and handling streaming data. It solves challenges related to efficient storage, fast query performance, schema evolution, and cross-platform compatibility.<\/p>"},{"question":"What are the main characteristics of Parquet compared to other storage formats?","answer":"

                  Compared to other formats, Parquet stands out for its columnar storage, efficient compression options, extensive data type support, schema evolution capabilities, and the ability to enable predicate pushdown for query optimization.<\/p>"},{"question":"What are the perspectives and future technologies related to Parquet?","answer":"

                  The future of Parquet is promising, with ongoing improvements in query engines, support for real-time data streaming, and its growing role in cloud data lakes and AI\/ML integration.<\/p>"},{"question":"How can proxy servers benefit from Parquet?","answer":"

                  Proxy servers can utilize Parquet for caching, data compression, log processing, and seamless data integration. Parquet's resource optimization features can improve overall proxy server performance.<\/p>"},{"question":"Where can I find more information about Parquet?","answer":"

                  For more information about Parquet, you can visit the Apache Parquet Official Website<\/a> or refer to the Parquet Format Specification on GitHub<\/a>. Additionally, you can explore Cloudera's Engineering Blog for insightful articles on Parquet. For information on Parquet-2.0, you can visit the Apache Arrow Official Website<\/a>.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478342\/revisions"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=478342"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}