{"id":6118,"date":"2024-12-23T17:03:41","date_gmt":"2024-12-23T08:03:41","guid":{"rendered":"https:\/\/blog.since2020.jp\/?p=6118"},"modified":"2026-09-30T14:56:35","modified_gmt":"2026-09-30T05:56:35","slug":"deltalake_glossary","status":"publish","type":"post","link":"https:\/\/since2020.jp\/media\/deltalake_glossary\/","title":{"rendered":"Delta Lake\u3068\u306f\uff1f2026\u5e74\u6700\u65b0\u6a5f\u80fd\u30fb\u30e1\u30ea\u30c3\u30c8\u30fb\u4f7f\u3044\u65b9\u3092\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"\n

Delta Lake\u3068\u306f\u4f55\u304b\u3092\u521d\u5fc3\u8005\u5411\u3051\u306b\u89e3\u8aac\u3002ACID\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3001\u30bf\u30a4\u30e0\u30c8\u30e9\u30d9\u30eb\u3001\u30b9\u30ad\u30fc\u30de\u7ba1\u7406\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001Liquid Clustering\u3001Delta Kernel\u3001Unity Catalog\u3001UniForm\u306a\u3069\u30012026\u5e74\u306e\u6700\u65b0\u52d5\u5411\u304b\u3089\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3001Apache Iceberg\u3068\u306e\u9055\u3044\u3001\u6d3b\u7528\u4e8b\u4f8b\u307e\u3067\u7db2\u7f85\u3057\u307e\u3059\u3002<\/p>\n\n\n

Delta Lake\u3068\u306f\uff1f<\/h2>\n

Delta Lake\uff08\u30c7\u30eb\u30bf\u30ec\u30a4\u30af\uff09\u3068\u306f\u3001\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u306bACID\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3001\u30b9\u30ad\u30fc\u30de\u7ba1\u7406\u3001\u30c7\u30fc\u30bf\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306a\u3069\u306e\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/strong>\u3067\u3059\u3002Apache Spark\u3068\u306e\u7d71\u5408\u3092\u4e2d\u5fc3\u306b\u666e\u53ca\u3057\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u3067\u306fSpark\u3060\u3051\u306b\u9650\u5b9a\u3055\u308c\u305a\u3001Flink\u3001Trino\u3001DuckDB\u306a\u3069\u8907\u6570\u306e\u30c7\u30fc\u30bf\u51e6\u7406\u30a8\u30f3\u30b8\u30f3\u304b\u3089\u5229\u7528\u3067\u304d\u308b\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3078\u3068\u767a\u5c55\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5f93\u6765\u306e\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u306f\u3001Amazon S3\u3001Azure Data Lake Storage\u3001Google Cloud Storage\u306a\u3069\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u5927\u91cf\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4fdd\u5b58\u3067\u304d\u308b\u4e00\u65b9\u3001\u300c\u30c7\u30fc\u30bf\u66f4\u65b0\u6642\u306e\u6574\u5408\u6027\u300d\u300c\u30b9\u30ad\u30fc\u30de\u5909\u66f4\u300d\u300c\u5c65\u6b74\u7ba1\u7406\u300d\u300c\u540c\u6642\u66f8\u304d\u8fbc\u307f\u300d\u3068\u3044\u3063\u305f\u51e6\u7406\u304c\u8907\u96d1\u306b\u306a\u308a\u3084\u3059\u3044\u554f\u984c\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n

Delta Lake\u306f\u3001Parquet\u306a\u3069\u306e\u30c7\u30fc\u30bf\u30d5\u30a1\u30a4\u30eb\u3068\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u306e\u67d4\u8edf\u6027\u3068\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u306e\u4fe1\u983c\u6027\u3092\u4e21\u7acb\u3059\u308b\u300c\u30ec\u30a4\u30af\u30cf\u30a6\u30b9\u300d<\/strong>\u3092\u69cb\u7bc9\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

Delta Lake\u306e\u4ed5\u7d44\u307f<\/h2>\n

Delta Lake\u3067\u306f\u3001\u30c7\u30fc\u30bf\u305d\u306e\u3082\u306e\u3092Parquet\u30d5\u30a1\u30a4\u30eb\u306a\u3069\u306b\u4fdd\u5b58\u3057\u3001\u30c6\u30fc\u30d6\u30eb\u306b\u5bfe\u3059\u308b\u5909\u66f4\u60c5\u5831\u3092\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\u3067\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3057\u305f\u5834\u5408\u3001\u5358\u7d14\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u7f6e\u304f\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u3069\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u30c6\u30fc\u30d6\u30eb\u306b\u8ffd\u52a0\u3055\u308c\u305f\u306e\u304b\u3092Delta Lake\u304c\u8a18\u9332\u3057\u307e\u3059\u3002\u66f4\u65b0\u3084\u524a\u9664\u3001MERGE\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3082\u3001\u305d\u306e\u5909\u66f4\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u6570\u306e\u51e6\u7406\u304c\u540c\u3058\u30c7\u30fc\u30bf\u3092\u6271\u3046\u74b0\u5883\u3067\u3082\u4e00\u8cab\u6027\u3092\u4fdd\u3061\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u4ed5\u7d44\u307f\u3092\u652f\u3048\u3066\u3044\u308b\u4ee3\u8868\u7684\u306a\u6a5f\u80fd\u304cACID\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3<\/strong>\u3067\u3059\u3002\u8aad\u307f\u53d6\u308a\u9014\u4e2d\u306e\u4e0d\u5b8c\u5168\u306a\u30c7\u30fc\u30bf\u3092\u53c2\u7167\u3059\u308b\u3053\u3068\u3092\u9632\u304e\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001Delta Lake\u3067\u306f\u30c6\u30fc\u30d6\u30eb\u306e\u904e\u53bb\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u53c2\u7167\u3067\u304d\u308b**Time Travel\uff08\u30bf\u30a4\u30e0\u30c8\u30e9\u30d9\u30eb\uff09**\u3082\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u8aa4\u66f4\u65b0\u304c\u767a\u751f\u3057\u305f\u969b\u306e\u8abf\u67fb\u3084\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3001\u904e\u53bb\u6642\u70b9\u306e\u30c7\u30fc\u30bf\u3092\u4f7f\u3063\u305f\u5206\u6790\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306e\u518d\u73fe\u306a\u3069\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

Delta Lake\u306e\u4e3b\u306a\u6a5f\u80fd<\/h2>\n

ACID\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3<\/h3>\n

Delta Lake\u306e\u4ee3\u8868\u7684\u306a\u7279\u5fb4\u3067\u3059\u3002\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u30fb\u66f4\u65b0\u30fb\u524a\u9664\u306a\u3069\u3092\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3068\u3057\u3066\u6271\u3048\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u3067\u3082\u9ad8\u3044\u6574\u5408\u6027\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u7279\u306b\u8907\u6570\u306e\u30b8\u30e7\u30d6\u304c\u540c\u3058\u30c6\u30fc\u30d6\u30eb\u3092\u66f4\u65b0\u3059\u308b\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u57fa\u76e4\u3067\u306f\u3001\u5358\u7d14\u306a\u30d5\u30a1\u30a4\u30eb\u7ba1\u7406\u3068\u306e\u5dee\u304c\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u30bf\u30a4\u30e0\u30c8\u30e9\u30d9\u30eb<\/h3>\n

Delta Lake\u3067\u306f\u30c7\u30fc\u30bf\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u7ba1\u7406\u3067\u304d\u308b\u305f\u3081\u3001\u904e\u53bb\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u300c\u5148\u6708\u306e\u58f2\u4e0a\u30c7\u30fc\u30bf\u3092\u518d\u73fe\u3057\u305f\u3044\u300d\u300c\u30e2\u30c7\u30eb\u304c\u5b66\u7fd2\u3057\u305f\u6642\u70b9\u306e\u30c7\u30fc\u30bf\u3092\u78ba\u8a8d\u3057\u305f\u3044\u300d\u300c\u8aa4\u3063\u305f\u66f4\u65b0\u524d\u306e\u30c7\u30fc\u30bf\u3092\u8abf\u67fb\u3057\u305f\u3044\u300d\u3068\u3044\u3063\u305f\u7528\u9014\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u30c7\u30fc\u30bf\u5206\u6790\u3060\u3051\u3067\u306a\u304f\u3001\u76e3\u67fb\u3084\u6a5f\u68b0\u5b66\u7fd2\u306e\u518d\u73fe\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3046\u3048\u3067\u3082\u91cd\u8981\u306a\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n

\u30b9\u30ad\u30fc\u30de\u30a8\u30f3\u30d5\u30a9\u30fc\u30b9\u30e1\u30f3\u30c8\u3068\u30b9\u30ad\u30fc\u30de\u30a8\u30dc\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/h3>\n

\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u3067\u306f\u3001\u7570\u306a\u308b\u5f62\u5f0f\u306e\u30c7\u30fc\u30bf\u304c\u610f\u56f3\u305b\u305a\u6df7\u5728\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002Delta Lake\u3067\u306f\u30b9\u30ad\u30fc\u30de\u30a8\u30f3\u30d5\u30a9\u30fc\u30b9\u30e1\u30f3\u30c8\u306b\u3088\u3063\u3066\u3001\u30c6\u30fc\u30d6\u30eb\u5b9a\u7fa9\u3068\u7570\u306a\u308b\u30c7\u30fc\u30bf\u304c\u767b\u9332\u3055\u308c\u308b\u3053\u3068\u3092\u9632\u304e\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u4e00\u65b9\u3001\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306e\u4ed5\u69d8\u5909\u66f4\u306a\u3069\u306b\u3088\u3063\u3066\u65b0\u3057\u3044\u30ab\u30e9\u30e0\u304c\u8ffd\u52a0\u3055\u308c\u308b\u5834\u5408\u306b\u306f\u3001\u30b9\u30ad\u30fc\u30de\u30a8\u30dc\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u5229\u7528\u3057\u3066\u6bb5\u968e\u7684\u306b\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/p>\n

MERGE\u30fbUPDATE\u30fbDELETE<\/h3>\n

Delta Lake\u3067\u306f\u3001\u5358\u7d14\u306a\u8ffd\u8a18\u3060\u3051\u3067\u306a\u304fUPDATE\u3001DELETE\u3001MERGE\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u305f\u3081\u3001\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u3067\u4e00\u822c\u7684\u306a\u66f4\u65b0\u51e6\u7406\u3084CDC\u3001SCD\u3001\u30c7\u30fc\u30bf\u540c\u671f\u306a\u3069\u3092\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u4e0a\u3067\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u3082\u3001Delta Lake\u306fMERGE\u3001UPDATE\u3001DELETE\u3092\u5229\u7528\u3057\u305fCDC\u3084SCD\u306a\u3069\u3092\u4e3b\u8981\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u3057\u3066\u6319\u3052\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30d0\u30c3\u30c1\u3068\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306e\u7d71\u5408<\/h3>\n

Delta\u30c6\u30fc\u30d6\u30eb\u306f\u3001\u30d0\u30c3\u30c1\u51e6\u7406\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u3067\u3042\u308b\u3068\u540c\u6642\u306b\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306e\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3084\u30b7\u30f3\u30af\u3068\u3057\u3066\u3082\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070IoT\u30bb\u30f3\u30b5\u30fc\u304b\u3089\u7d99\u7d9a\u7684\u306b\u9001\u3089\u308c\u308b\u30c7\u30fc\u30bf\u3092Delta Lake\u3078\u53d6\u308a\u8fbc\u307f\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u5206\u6790\u3084\u7570\u5e38\u691c\u77e5\u3078\u5229\u7528\u3057\u306a\u304c\u3089\u3001\u904e\u53bb\u30c7\u30fc\u30bf\u306b\u3064\u3044\u3066\u306f\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u518d\u96c6\u8a08\u3059\u308b\u3068\u3044\u3063\u305f\u69cb\u6210\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n

Delta Lake\u306e2026\u5e74\u6700\u65b0\u52d5\u5411<\/h2>\n

2026\u5e74\u306eDelta Lake\u3092\u7406\u89e3\u3059\u308b\u3046\u3048\u3067\u7279\u306b\u91cd\u8981\u306a\u306e\u304c\u3001Catalog-Managed Tables<\/strong>\u3067\u3059\u3002<\/p>\n

\u5f93\u6765\u306eDelta Lake\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3068\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\u3092\u4e2d\u5fc3\u306b\u30c6\u30fc\u30d6\u30eb\u306e\u72b6\u614b\u3092\u7ba1\u7406\u3057\u3066\u3044\u307e\u3057\u305f\u3002Catalog-Managed Tables\u3067\u306f\u3001\u30ab\u30bf\u30ed\u30b0\u304c\u30c6\u30fc\u30d6\u30eb\u306e\u72b6\u614b\u3084\u30b3\u30df\u30c3\u30c8\u3092\u8abf\u6574\u3059\u308b\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002Delta Lake 4.1\u304b\u3089\u5c0e\u5165\u3055\u308c\u30014.3\u3067\u306fUnity Catalog Delta API\u3068\u306e\u7d71\u5408\u304c\u9032\u307f\u307e\u3057\u305f\u3002<\/p>\n

\u3053\u306e\u5909\u5316\u306b\u3088\u3063\u3066\u3001\u30c7\u30fc\u30bf\u306e\u5834\u6240\u3060\u3051\u3067\u306a\u304f\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u8b58\u5225\u3001\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306a\u3069\u3092\u30ab\u30bf\u30ed\u30b0\u4e2d\u5fc3\u306b\u7ba1\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u3055\u3089\u306b2026\u5e747\u6708\u306b\u306fUnity Catalog Delta API\uff08UC Delta API\uff09<\/strong>\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306fDelta\u306e\u30b9\u30ad\u30fc\u30de\u3084\u30d7\u30ed\u30c8\u30b3\u30eb\u3001\u30c6\u30fc\u30d6\u30eb\u64cd\u4f5c\u3092\u6271\u3046\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3055\u308c\u305fAPI\u3067\u3001\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306eUnity Catalog 0.5\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u305d\u3057\u30662026\u5e748\u6708\u306b\u516c\u958b\u3055\u308c\u305fDelta Lake 4.4.0<\/strong>\u3067\u306f\u3001Apache Spark 4.2\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u5bfe\u8c61\u3068\u3057\u3001Delta Kernel\u3001Delta UniForm\u3001Delta Sharing\u3001Delta Flink\u306a\u3069\u3001\u8907\u6570\u30a8\u30f3\u30b8\u30f3\u3084\u30ab\u30bf\u30ed\u30b0\u3068\u306e\u9023\u643a\u304c\u3055\u3089\u306b\u5f37\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3064\u307e\u308a\u73fe\u5728\u306eDelta Lake\u306f\u3001\u5358\u306a\u308b\u300cSpark\u3067\u6271\u3046\u30c7\u30fc\u30bf\u5f62\u5f0f\u300d\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u30c7\u30fc\u30bf\u51e6\u7406\u30a8\u30f3\u30b8\u30f3\u3092\u63a5\u7d9a\u3059\u308b\u30aa\u30fc\u30d7\u30f3\u306a\u30c6\u30fc\u30d6\u30eb\u57fa\u76e4<\/strong>\u3078\u3068\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

Delta Kernel\u3068\u306f\uff1f<\/h2>\n

2026\u5e74\u306eDelta Lake\u3092\u8a9e\u308b\u3046\u3048\u3067\u3082\u3046\u4e00\u3064\u91cd\u8981\u306a\u306e\u304cDelta Kernel<\/strong>\u3067\u3059\u3002<\/p>\n

Delta Kernel\u306f\u3001Delta Lake\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5404\u30c7\u30fc\u30bf\u51e6\u7406\u30a8\u30f3\u30b8\u30f3\u304c\u30bc\u30ed\u304b\u3089\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u304c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002Java\u3084Rust\u3067\u63d0\u4f9b\u3055\u308c\u3001Delta\u30c6\u30fc\u30d6\u30eb\u306e\u8aad\u307f\u66f8\u304d\u3092\u884c\u3046\u30b3\u30cd\u30af\u30bf\u30fc\u3084\u51e6\u7406\u30a8\u30f3\u30b8\u30f3\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u306b\u3088\u3063\u3066\u3001Spark\u3060\u3051\u3067\u306a\u304fFlink\u3001Trino\u3001DuckDB\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30a8\u30f3\u30b8\u30f3\u304b\u3089Delta Lake\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306e\u57fa\u76e4\u3092\u4f5c\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u306f\u30c7\u30fc\u30bf\u57fa\u76e4\u306e\u300c\u30a8\u30f3\u30b8\u30f3\u4f9d\u5b58\u300d\u3092\u6e1b\u3089\u3059\u3046\u3048\u3067\u91cd\u8981\u306a\u9032\u5316\u3067\u3059\u3002<\/p>\n

Delta Lake\u3068Liquid Clustering<\/h2>\n

\u5927\u898f\u6a21\u306aDelta\u30c6\u30fc\u30d6\u30eb\u3067\u306f\u3001\u30c7\u30fc\u30bf\u3092\u3069\u306e\u3088\u3046\u306b\u914d\u7f6e\u3059\u308b\u304b\u304c\u30af\u30a8\u30ea\u6027\u80fd\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n

\u5f93\u6765\u306f\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u3084Z-Ordering\u304c\u3088\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u306fLiquid Clustering<\/strong>\u304c\u91cd\u8981\u306a\u9078\u629e\u80a2\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

Liquid Clustering\u3067\u306f\u3001\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u306b\u5fdc\u3058\u3066\u30af\u30e9\u30b9\u30bf\u30ea\u30f3\u30b0\u5bfe\u8c61\u3092\u5909\u66f4\u3067\u304d\u3001\u30c7\u30fc\u30bf\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u56fa\u5b9a\u7684\u306a\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u8a2d\u8a08\u306b\u7e1b\u3089\u308c\u306b\u304f\u304f\u3067\u304d\u307e\u3059\u3002\u9ad8\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306e\u5217\u3084\u30c7\u30fc\u30bf\u5206\u5e03\u306e\u504f\u308a\u304c\u5927\u304d\u3044\u30c6\u30fc\u30d6\u30eb\u3001\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u304c\u5909\u5316\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u306a\u3069\u3067\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

2026\u5e74\u306eDelta Lake\u3067\u306f\u3001\u300c\u6700\u521d\u306b\u5b8c\u74a7\u306a\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u8a2d\u8a08\u3092\u6c7a\u3081\u308b\u300d\u3088\u308a\u3082\u3001\u30c7\u30fc\u30bf\u306e\u5229\u7528\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u7d99\u7d9a\u7684\u306b\u6700\u9069\u5316\u3059\u308b\u8003\u3048\u65b9\u304c\u91cd\u8981\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

Delta Lake\u3068Apache Iceberg\u306e\u9055\u3044<\/h2>\n

Delta Lake\u3092\u691c\u8a0e\u3059\u308b\u3068\u304d\u3001Apache Iceberg\u3068\u306e\u9055\u3044\u304c\u6c17\u306b\u306a\u308b\u4eba\u3082\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u3069\u3061\u3089\u3082\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30b9\u30c8\u30ec\u30fc\u30b8\u4e0a\u306b\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c6\u30fc\u30d6\u30eb\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u30aa\u30fc\u30d7\u30f3\u30c6\u30fc\u30d6\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u3059\u304c\u3001\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3084\u6a5f\u80fd\u3001\u5229\u7528\u3059\u308b\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u30a8\u30f3\u30b8\u30f3\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u3063\u3066\u9069\u3057\u305f\u69cb\u6210\u306f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n

Delta Lake\u3067\u306f\u3001Delta UniForm\u306b\u3088\u3063\u3066Iceberg\u3084Hudi\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089Delta\u30c6\u30fc\u30d6\u30eb\u3092\u8aad\u307f\u53d6\u308c\u308b\u76f8\u4e92\u904b\u7528\u6027\u3082\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u3082\u3001UniForm\u3092\u300clakehouse interoperability\u300d\u306e\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3068\u3057\u3066\u4f4d\u7f6e\u3065\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u305d\u306e\u305f\u30812026\u5e74\u306e\u30c7\u30fc\u30bf\u57fa\u76e4\u3067\u306f\u3001Delta Lake\u3068Iceberg\u3092\u5358\u7d14\u306a\u4e8c\u8005\u629e\u4e00\u3068\u3057\u3066\u6349\u3048\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u8907\u6570\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u30fb\u8907\u6570\u30a8\u30f3\u30b8\u30f3\u3092\u3069\u306e\u3088\u3046\u306b\u5171\u5b58\u3055\u305b\u308b\u304b<\/strong>\u3068\u3044\u3046\u8996\u70b9\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n

Delta Lake\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8<\/h2>\n

Delta Lake\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u307e\u305a\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u306bACID\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u5c0e\u5165\u3067\u304d\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u3092\u6271\u3044\u306a\u304c\u3089\u30c7\u30fc\u30bf\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u3055\u3089\u306b\u3001\u30bf\u30a4\u30e0\u30c8\u30e9\u30d9\u30eb\u306b\u3088\u308b\u5c65\u6b74\u7ba1\u7406\u3001\u30b9\u30ad\u30fc\u30de\u7ba1\u7406\u3001MERGE\u30fbUPDATE\u30fbDELETE\u3001\u30d0\u30c3\u30c1\u3068\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306e\u7d71\u5408\u306a\u3069\u3001\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u306b\u8fd1\u3044\u6a5f\u80fd\u3092\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30b9\u30c8\u30ec\u30fc\u30b8\u4e0a\u3067\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4e00\u65b9\u3067\u3001Delta Lake\u306e\u6a5f\u80fd\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3059\u308b\u306b\u306f\u3001Spark\u3001\u30af\u30e9\u30a6\u30c9\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30ab\u30bf\u30ed\u30b0\u3001\u30c7\u30fc\u30bf\u30ac\u30d0\u30ca\u30f3\u30b9\u306a\u3069\u306b\u3064\u3044\u3066\u4e00\u5b9a\u306e\u77e5\u8b58\u304c\u5fc5\u8981\u3067\u3059\u3002\u307e\u305f\u3001\u65b0\u3057\u3044\u30c6\u30fc\u30d6\u30eb\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u53e4\u3044\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002Catalog-Managed Tables\u3067\u306f\u3001\u76f4\u63a5\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u3092\u6307\u5b9a\u3057\u3066\u30a2\u30af\u30bb\u30b9\u3059\u308b\u65b9\u5f0f\u3082\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u306a\u3044\u305f\u3081\u3001\u63a1\u7528\u6642\u306b\u306f\u5229\u7528\u3059\u308b\u30a8\u30f3\u30b8\u30f3\u3084\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4e92\u63db\u6027\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

Delta Lake\u306e\u6d3b\u7528\u4e8b\u4f8b<\/h2>\n

Delta Lake\u306f\u3001\u4f01\u696d\u306e\u30c7\u30fc\u30bf\u7d71\u5408\u57fa\u76e4\u3001BI\u3001\u6a5f\u68b0\u5b66\u7fd2\u3001\u751f\u6210AI\u3001IoT\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u5206\u6790\u306a\u3069\u5e45\u5e83\u3044\u9818\u57df\u3067\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u5c0f\u58f2\u4f01\u696d\u306a\u3089\u3001\u8cfc\u8cb7\u5c65\u6b74\u3001Web\u884c\u52d5\u3001\u5728\u5eab\u60c5\u5831\u3092Delta Lake\u3078\u7d71\u5408\u3057\u3001BI\u306b\u3088\u308b\u58f2\u4e0a\u5206\u6790\u3084\u9700\u8981\u4e88\u6e2c\u3078\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u88fd\u9020\u696d\u3067\u306f\u3001\u5de5\u5834\u8a2d\u5099\u304b\u3089\u53d6\u5f97\u3057\u305fIoT\u30c7\u30fc\u30bf\u3092\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3067\u84c4\u7a4d\u3057\u3001\u7570\u5e38\u691c\u77e5\u3084\u8a2d\u5099\u4fdd\u5168\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

AI\u30fb\u6a5f\u68b0\u5b66\u7fd2\u3067\u306f\u3001\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u30c7\u30fc\u30bf\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u3067\u3001\u30e2\u30c7\u30eb\u304c\u3069\u306e\u30c7\u30fc\u30bf\u3092\u5229\u7528\u3057\u3066\u5b66\u7fd2\u3057\u305f\u306e\u304b\u3092\u8ffd\u8de1\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u751f\u6210AI\u3067\u306f\u3001\u696d\u52d9\u30c7\u30fc\u30bf\u3084\u6587\u66f8\u3092AI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3078\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306e\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u57fa\u76e4\u3068\u3057\u3066\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

Delta Lake\u5c0e\u5165\u6642\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n

Delta Lake\u3092\u5c0e\u5165\u3059\u308b\u3068\u304d\u306f\u3001\u307e\u305a\u30c7\u30fc\u30bf\u91cf\u3060\u3051\u3067\u306a\u304f\u3001\u66f4\u65b0\u983b\u5ea6\u3001\u30af\u30a8\u30ea\u30d1\u30bf\u30fc\u30f3\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306e\u6709\u7121\u3001\u5229\u7528\u3059\u308b\u30a8\u30f3\u30b8\u30f3\u3001\u30ac\u30d0\u30ca\u30f3\u30b9\u8981\u4ef6<\/strong>\u3092\u6574\u7406\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\u6027\u80fd\u9762\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3084\u30c7\u30fc\u30bf\u30b9\u30ad\u30c3\u30d4\u30f3\u30b0\u3001\u30af\u30e9\u30b9\u30bf\u30ea\u30f3\u30b0\u306a\u3069\u3092\u78ba\u8a8d\u3057\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u5229\u7528\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u6700\u9069\u5316\u3057\u307e\u3059\u3002Liquid Clustering\u3092\u63a1\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u5b9f\u969b\u306e\u691c\u7d22\u6761\u4ef6\u3084\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u3092\u3082\u3068\u306b\u30af\u30e9\u30b9\u30bf\u30ea\u30f3\u30b0\u5217\u3092\u6c7a\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001Unity Catalog\u306a\u3069\u306e\u30ab\u30bf\u30ed\u30b0\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u3060\u3051\u3067\u306a\u304f\u3001\u6a29\u9650\u3001\u8a8d\u8a3c\u3001\u30c7\u30fc\u30bf\u5171\u6709\u3001\u76e3\u67fb\u307e\u3067\u542b\u3081\u3066\u8a2d\u8a08\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\u307e\u3068\u3081\uff1aDelta Lake\u306fAI\u6642\u4ee3\u306e\u30c7\u30fc\u30bf\u57fa\u76e4\u3078<\/h2>\n

Delta Lake\u306f\u3001\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u306bACID\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3001\u30bf\u30a4\u30e0\u30c8\u30e9\u30d9\u30eb\u3001\u30b9\u30ad\u30fc\u30de\u7ba1\u7406\u3001\u66f4\u65b0\u30fb\u524a\u9664\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306a\u3069\u306e\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30ec\u30a4\u30af\u30cf\u30a6\u30b9\u3092\u5b9f\u73fe\u3059\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u6280\u8853\u3067\u3059\u3002<\/p>\n

2026\u5e74\u306f\u7279\u306b\u3001Delta Lake 4.4.0\u3001Catalog-Managed Tables\u3001Unity Catalog Delta API\u3001Delta Kernel\u3001Liquid Clustering\u3001UniForm<\/strong>\u306a\u3069\u304c\u91cd\u8981\u306a\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u304b\u3089Delta Lake\u3092\u5b66\u3076\u5834\u5408\u306f\u3001\u300cParquet\u306b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\u3092\u52a0\u3048\u305f\u6280\u8853\u300d\u3068\u3060\u3051\u7406\u89e3\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30aa\u30fc\u30d7\u30f3\u30c6\u30fc\u30d6\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3001\u30c7\u30fc\u30bf\u30ab\u30bf\u30ed\u30b0\u3001\u30de\u30eb\u30c1\u30a8\u30f3\u30b8\u30f3\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001AI\/ML\u3001\u30c7\u30fc\u30bf\u30ac\u30d0\u30ca\u30f3\u30b9\u3092\u3064\u306a\u3050\u57fa\u76e4<\/strong>\u3068\u3057\u3066\u6349\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\u30c7\u30fc\u30bf\u30ec\u30a4\u30af\u30cf\u30a6\u30b9\u306e\u69cb\u7bc9\u3084AI\u5411\u3051\u30c7\u30fc\u30bf\u57fa\u76e4\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u4f01\u696d\u306b\u3068\u3063\u3066\u3001Delta Lake\u306f\u4eca\u5f8c\u3082\u91cd\u8981\u306a\u9078\u629e\u80a2\u306e\u4e00\u3064\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n

<\/p>","protected":false},"excerpt":{"rendered":"

Delta Lake\u3068\u306f\u4f55\u304b\u3092\u521d\u5fc3\u8005\u5411\u3051\u306b\u89e3\u8aac\u3002ACID\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3001\u30bf\u30a4\u30e0\u30c8\u30e9\u30d9\u30eb\u3001\u30b9\u30ad\u30fc\u30de\u7ba1\u7406\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001Liquid Clustering\u3001Delta Kernel\u3001Unity Catalog\u3001UniFo […]<\/p>\n","protected":false},"author":22,"featured_media":6038,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","swell_btn_cv_data":"","footnotes":"","_wp_rev_ctl_limit":""},"categories":[1249],"tags":[774,841],"class_list":["post-6118","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-databricks","tag-deltalake"],"_links":{"self":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/6118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/comments?post=6118"}],"version-history":[{"count":1,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/6118\/revisions"}],"predecessor-version":[{"id":9899,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/6118\/revisions\/9899"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media\/6038"}],"wp:attachment":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media?parent=6118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/categories?post=6118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/tags?post=6118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}