{"id":200446,"date":"2025-05-06T10:01:19","date_gmt":"2025-05-06T02:01:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200446\/"},"modified":"2025-05-06T10:01:19","modified_gmt":"2025-05-06T02:01:19","slug":"%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8-elasticsearch-%e7%9a%84-join-%e7%b1%bb%e5%9e%8b%e7%ae%a1%e7%90%86%e5%85%b3%e8%81%94%e6%95%b0%e6%8d%ae%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200446\/","title":{"rendered":"\u5982\u4f55\u5229\u7528 Elasticsearch \u7684 Join \u7c7b\u578b\u7ba1\u7406\u5173\u8054\u6570\u636e\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u5229\u7528 Elasticsearch \u7684 Join \u7c7b\u578b\u7ba1\u7406\u5173\u8054\u6570\u636e\uff1f<\/h1>\n<p>\u6700\u8fd1\u53d1\u73b0\u4e0d\u5c11\u5c0f\u4f19\u4f34\u90fd\u5bf9\u5f88\u611f\u5174\u8da3\uff0c\u6240\u4ee5\u4eca\u5929\u7ee7\u7eed\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u76f8\u5173\u7684\u77e5\u8bc6\uff0c\u672c\u6587\u4e3b\u8981\u5185\u5bb9\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01\u5f53\u7136\u5982\u679c\u9605\u8bfb\u672c\u6587\u65f6\u5b58\u5728\u4e0d\u540c\u60f3\u6cd5\uff0c\u53ef\u4ee5\u5728\u8bc4\u8bba\u4e2d\u8868\u8fbe\uff0c\u4f46\u662f\u8bf7\u52ff\u4f7f\u7528\u8fc7\u6fc0\u7684\u63aa\u8f9e~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241105\/17307839286729aab82ca8f.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Elasticsearch \u7684 Join \u7c7b\u578b<\/strong><\/p>\n<p>\u5728 Elasticsearch \u4e2d\uff0cjoin \u7c7b\u578b\u5141\u8bb8\u6211\u4eec\u5728\u4e0d\u540c\u7684\u7d22\u5f15\u4e2d\u5b58\u50a8\u5173\u8054\u6570\u636e\uff0c\u4ece\u800c\u89e3\u51b3\u201c\u4e00\u4e2a\u6587\u6863\u5305\u542b\u53e6\u4e00\u4e2a\u6587\u6863\u201d\u7684\u95ee\u9898\uff0c\u50cf\u6587\u7ae0\u548c\u8bc4\u8bba\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<p><strong>\u4e0e\u5408\u5e76\u7d22\u5f15\u7684\u5dee\u5f02<\/strong><\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cjoin \u7c7b\u578b\u4e0e\u5408\u5e76\u591a\u4e2a\u7d22\u5f15\u4e0d\u540c\u3002\u5408\u5e76\u7d22\u5f15\u4f1a\u5c06\u6240\u6709\u6587\u6863\u7269\u7406\u5b58\u50a8\u5728\u540c\u4e00\u4e2a\u7d22\u5f15\u4e2d\uff0c\u800c join \u7c7b\u578b\u53ea\u662f\u5728\u903b\u8f91\u4e0a\u5c06\u5b83\u4eec\u5173\u8054\u8d77\u6765\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u4f7f\u7528 join \u7c7b\u578b\uff0c\u6587\u7ae0\u548c\u8bc4\u8bba\u4ecd\u7136\u5b58\u50a8\u5728\u4e0d\u540c\u7684\u7d22\u5f15\u4e2d\uff0c\u4f46\u662f Elasticsearch \u53ef\u4ee5\u901a\u8fc7 join \u5b57\u6bb5\u5c06\u5b83\u4eec\u94fe\u63a5\u8d77\u6765\u3002<\/p>\n<p><strong>\u6027\u80fd\u4f18\u52bf<\/strong><\/p>\n<p>\u4e0e\u5c06\u8bc4\u8bba\u5b58\u50a8\u5728\u6587\u7ae0 object \u5b57\u6bb5\u4e2d\u76f8\u6bd4\uff0cjoin \u7c7b\u578b\u5728\u7edf\u8ba1\u548c\u67e5\u8be2\u6027\u80fd\u65b9\u9762\u5177\u6709\u4f18\u52bf\u3002<\/p>\n<ul>\n<li><strong>\u7edf\u8ba1\uff1a<\/strong> \u4f7f\u7528 join \u7c7b\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 terms aggregation \u5206\u7ec4\u7edf\u8ba1\u6bcf\u4e2a\u6587\u7ae0\u7684\u8bc4\u8bba\u6570\u3002\u5982\u679c\u5c06\u8bc4\u8bba\u5b58\u50a8\u5728 object \u5b57\u6bb5\u4e2d\uff0c\u5219\u9700\u8981\u7f16\u5199\u590d\u6742\u7684\u67e5\u8be2\u6765\u63d0\u53d6\u8fd9\u4e9b\u4fe1\u606f\u3002<\/li>\n<li><strong>\u67e5\u8be2\uff1a<\/strong> \u52a0\u5165\u7c7b\u578b\u5141\u8bb8\u6211\u4eec\u4f7f\u7528 nested queries \u8f7b\u677e\u5730\u67e5\u8be2\u5305\u542b\u7279\u5b9a\u6761\u4ef6\u8bc4\u8bba\u7684\u6587\u7ae0\u3002\u5c06\u8bc4\u8bba\u5b58\u50a8\u5728 object \u5b57\u6bb5\u4e2d\uff0c\u5219\u9700\u8981\u4f7f\u7528\u66f4\u590d\u6742\u7684\u591a\u5c42\u67e5\u8be2\u3002<\/li>\n<\/ul>\n<p><strong>\u5efa\u8bae<\/strong><\/p>\n<p>\u5bf9\u4e8e\u50cf\u6587\u7ae0\u548c\u8bc4\u8bba\u8fd9\u6837\u7684\u5173\u7cfb\u6570\u636e\uff0c\u6211\u4eec\u5efa\u8bae\u4f7f\u7528 join \u7c7b\u578b\uff0c\u800c\u4e0d\u662f\u5c06\u8bc4\u8bba\u6302\u8f7d\u5230\u6587\u7ae0\u6587\u6863\u4e2d\u3002\u8fd9\u6837\u505a\u7684\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u51cf\u5c11\u6570\u636e\u4fee\u6539\u5f00\u9500<\/li>\n<li>\u63d0\u9ad8\u7edf\u8ba1\u548c\u67e5\u8be2\u6027\u80fd<\/li>\n<li>\u4fdd\u6301\u6570\u636e\u7684\u7ed3\u6784\u5316\u548c\u7ec4\u7ec7\u6027<\/li>\n<\/ul>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u5229\u7528 Elasticsearch \u7684 Join \u7c7b\u578b\u7ba1\u7406\u5173\u8054\u6570\u636e\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5229\u7528 Elasticsear&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200446","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200446"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200446\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}