{"id":16454,"date":"2023-12-05T10:28:33","date_gmt":"2023-12-05T02:28:33","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=16454"},"modified":"2023-12-16T11:02:27","modified_gmt":"2023-12-16T03:02:27","slug":"elasticsearch-de-dao-pai-suo-yin-shi-shen-me","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/05\/elasticsearch-de-dao-pai-suo-yin-shi-shen-me\/","title":{"rendered":"Elasticsearch\u7684\u5012\u6392\u7d22\u5f15\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p>\u5012\u6392\u7d22\u5f15\uff08Inverted Index\uff09\u662fElasticsearch\u4e2d\u7528\u4e8e\u652f\u6301\u5168\u6587\u641c\u7d22\u7684\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u4e4b\u4e00\u3002\u5b83\u7684\u8bbe\u8ba1\u4e0e\u4f20\u7edf\u7684\u6b63\u6392\u7d22\u5f15\uff08Forward Index\uff09\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<h3><a id=\"%E6%AD%A3%E6%8E%92%E7%B4%A2%E5%BC%95vs%E5%80%92%E6%8E%92%E7%B4%A2%E5%BC%95%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u6b63\u6392\u7d22\u5f15 vs. \u5012\u6392\u7d22\u5f15\uff1a<\/h3>\n<ol>\n<li>\n<strong>\u6b63\u6392\u7d22\u5f15\uff08Forward Index\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>\u6b63\u6392\u7d22\u5f15\u662f\u5c06\u6587\u6863\u7684\u6807\u8bc6\u7b26\uff08\u4f8b\u5982\u6587\u6863ID\uff09\u6620\u5c04\u5230\u6587\u6863\u4e2d\u7684\u5b9e\u9645\u5185\u5bb9\u3002\u5728\u6b63\u6392\u7d22\u5f15\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u6587\u6863ID\u76f4\u63a5\u67e5\u627e\u6587\u6863\u5185\u5bb9\uff0c\u8fd9\u662f\u4f20\u7edf\u6570\u636e\u5e93\u4e2d\u5e38\u89c1\u7684\u7ed3\u6784\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u5012\u6392\u7d22\u5f15\uff08Inverted Index\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>\u5012\u6392\u7d22\u5f15\u5219\u662f\u5c06\u8bcd\u6c47\uff08Terms\uff09\u6620\u5c04\u5230\u5305\u542b\u8fd9\u4e9b\u8bcd\u6c47\u7684\u6587\u6863\u5217\u8868\u3002\u6bcf\u4e2a\u8bcd\u6c47\u90fd\u7ef4\u62a4\u4e86\u4e00\u4e2a\u6307\u5411\u5305\u542b\u8be5\u8bcd\u6c47\u7684\u6587\u6863\u7684\u5f15\u7528\u5217\u8868\u3002\u8fd9\u79cd\u7ed3\u6784\u5141\u8bb8\u901a\u8fc7\u8bcd\u6c47\u6765\u67e5\u627e\u76f8\u5173\u6587\u6863\uff0c\u5b9e\u73b0\u4e86\u9ad8\u6548\u7684\u5168\u6587\u641c\u7d22\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3><a id=\"%E5%80%92%E6%8E%92%E7%B4%A2%E5%BC%95%E7%9A%84%E5%9F%BA%E6%9C%AC%E5%8E%9F%E7%90%86%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u5012\u6392\u7d22\u5f15\u7684\u57fa\u672c\u539f\u7406\uff1a<\/h3>\n<ol>\n<li>\n<strong>\u5206\u6790\u6587\u6863\uff1a<\/strong><\/p>\n<ul>\n<li>\u5728\u7d22\u5f15\u6587\u6863\u4e4b\u524d\uff0cElasticsearch\u4f1a\u4f7f\u7528\u5206\u6790\u5668\uff08Analyzer\uff09\u5bf9\u6587\u6863\u8fdb\u884c\u5206\u6790\uff0c\u5c06\u6587\u6863\u62c6\u5206\u6210\u5355\u8bcd\uff08\u8bcd\u6c47\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u6784\u5efa\u5012\u6392\u7d22\u5f15\uff1a<\/strong><\/p>\n<ul>\n<li>\u5bf9\u4e8e\u6bcf\u4e2a\u5355\u8bcd\uff0c\u5012\u6392\u7d22\u5f15\u7ef4\u62a4\u4e00\u4e2a\u8bcd\u6c47\u5230\u6587\u6863ID\u7684\u6620\u5c04\u3002\u5982\u679c\u4e00\u4e2a\u6587\u6863\u5305\u542b\u67d0\u4e2a\u5355\u8bcd\uff0c\u90a3\u4e48\u8be5\u5355\u8bcd\u5c06\u51fa\u73b0\u5728\u8be5\u6587\u6863\u5bf9\u5e94\u7684\u5012\u6392\u7d22\u5f15\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u68c0\u7d22\u6587\u6863\uff1a<\/strong><\/p>\n<ul>\n<li>\u5f53\u6267\u884c\u641c\u7d22\u67e5\u8be2\u65f6\uff0cElasticsearch\u67e5\u8be2\u5012\u6392\u7d22\u5f15\u800c\u4e0d\u662f\u6574\u4e2a\u6587\u6863\u96c6\u5408\u3002\u8fd9\u4f7f\u5f97\u641c\u7d22\u53d8\u5f97\u975e\u5e38\u9ad8\u6548\uff0c\u56e0\u4e3a\u5b83\u53ea\u9700\u8981\u68c0\u7d22\u5305\u542b\u67e5\u8be2\u8bcd\u6c47\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3><a id=\"%E4%B8%BE%E4%BE%8B%E8%AF%B4%E6%98%8E%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u4e3e\u4f8b\u8bf4\u660e\uff1a<\/h3>\n<p>\u5047\u8bbe\u6709\u4e24\u4e2a\u6587\u6863\uff1a<\/p>\n<ol>\n<li>\u6587\u68631: &quot;Elasticsearch is a search engine&quot;<\/li>\n<li>\u6587\u68632: &quot;Elasticsearch is distributed and scalable&quot;<\/li>\n<\/ol>\n<p>\u5bf9\u5e94\u7684\u5012\u6392\u7d22\u5f15\u53ef\u80fd\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>&quot;Elasticsearch&quot; -&gt; [1, 2]<\/li>\n<li>&quot;is&quot; -&gt; [1, 2]<\/li>\n<li>&quot;a&quot; -&gt; [1]<\/li>\n<li>&quot;search&quot; -&gt; [1]<\/li>\n<li>&quot;engine&quot; -&gt; [1]<\/li>\n<li>&quot;distributed&quot; -&gt; [2]<\/li>\n<li>&quot;and&quot; -&gt; [2]<\/li>\n<li>&quot;scalable&quot; -&gt; [2]<\/li>\n<\/ul>\n<p>\u5982\u679c\u7528\u6237\u641c\u7d22 &quot;Elasticsearch distributed,&quot; Elasticsearch\u4f1a\u67e5\u8be2\u5012\u6392\u7d22\u5f15\uff0c\u627e\u5230\u5305\u542b\u8fd9\u4e24\u4e2a\u8bcd\u6c47\u7684\u6587\u6863ID\u5217\u8868\uff0c\u7136\u540e\u8fd4\u56de\u76f8\u5e94\u7684\u6587\u6863\u3002<\/p>\n<p>\u5012\u6392\u7d22\u5f15\u7684\u8bbe\u8ba1\u4f7f\u5f97Elasticsearch\u80fd\u591f\u5728\u5927\u89c4\u6a21\u6570\u636e\u96c6\u4e0a\u5b9e\u73b0\u5feb\u901f\u548c\u9ad8\u6548\u7684\u5168\u6587\u641c\u7d22\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5012\u6392\u7d22\u5f15\uff08Inverted Index\uff09\u662fElasticsearch\u4e2d\u7528\u4e8e\u652f\u6301\u5168\u6587\u641c\u7d22\u7684\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u4e4b\u4e00\u3002\u5b83\u7684 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[125],"tags":[],"class_list":["post-16454","post","type-post","status-publish","format-standard","hentry","category-elasticsearch"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=16454"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16454\/revisions"}],"predecessor-version":[{"id":48403,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16454\/revisions\/48403"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=16454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=16454"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=16454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}