{"id":263,"date":"2025-03-25T21:38:43","date_gmt":"2025-03-25T13:38:43","guid":{"rendered":"http:\/\/yangnanbei.top\/?p=263"},"modified":"2025-03-25T21:38:43","modified_gmt":"2025-03-25T13:38:43","slug":"clickhouse%e7%9b%b8%e5%85%b3","status":"publish","type":"post","link":"http:\/\/yangnanbei.top\/index.php\/2025\/03\/25\/clickhouse%e7%9b%b8%e5%85%b3\/","title":{"rendered":"Clickhouse\u76f8\u5173"},"content":{"rendered":"\n<p>\u5b98\u65b9\u6587\u6863\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/clickhouse.com\/docs\/zh\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ecf\u9a8c\u4e4b\u8c08<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">\u8868\u7ed3\u6784\u53d8\u66f4<\/h2>\n\n\n\n<p>\u7531\u4e8e\u9700\u6c42\u7684\u53d8\u5316\uff0c\u8868\u7ed3\u6784\u5728\u4e0d\u540c\u7248\u672c\u4e4b\u95f4\u4f1a\u6709\u53d8\u66f4\uff0c\u6b64\u65f6\u4f1a\u51fa\u73b0\u5386\u53f2\u6570\u636e\u7c7b\u578b\u53d8\u66f4\u6216\u8005\u76ee\u6807sql\u4e0e\u6570\u636e\u5e93\u5b9e\u9645\u8868\u7ed3\u6784\u4e0d\u5339\u914d\u7684\u60c5\u51b5\u3002\u6211\u4eec\u81ea\u7136\u9700\u8981\u5904\u7406\u8fd9\u79cd\u60c5\u51b5\uff0c\u5927\u4f53\u76ee\u6807\u662f<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u7ef4\u62a4\u597d\u7528\u6237\u7684\u5386\u53f2\u6570\u636e\n<ol class=\"wp-block-list\">\n<li>\u82e5\u67d0\u5217\u7684\u7c7b\u578b\u53d1\u751f\u53d8\u66f4\uff0c\u5982<code>String -> Int<\/code> or <code>Int -> String<\/code>, 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\u662f\u5f88heavy\u7684\u540c\u6b65\u7a81\u53d8\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u5728\u8868\u7ed3\u6784\u66f4\u65b0\u671f\u95f4\uff0c\u6211\u4eec\u8ba4\u4e3a\u6574\u4e2a\u7cfb\u7edf\u662f\u4e0d\u53ef\u7528\u7684\uff0c\u8981\u5c3d\u91cf\u4f18\u5316\u8868\u7ed3\u6784\u66f4\u65b0\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">add column<\/h3>\n\n\n\n<p>\u6700\u7b80\u5355\u4e14\u4e0d\u8d39\u529b\u7684\u64cd\u4f5c\u662f\u65b0\u5efa\u4e00\u5217\uff0c\u51e0\u4e4e\u7acb\u5373\u5b8c\u6210\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">drop column<\/h3>\n\n\n\n<p>\u6211\u4eec\u5148\u6765\u770b\u770bdrop column\u7684\u63cf\u8ff0\uff1a<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b98\u65b9\u6587\u6863\uff1a \u7ecf\u9a8c\u4e4b\u8c08 \u8868\u7ed3\u6784\u53d8\u66f4 \u7531\u4e8e\u9700\u6c42\u7684\u53d8\u5316\uff0c\u8868\u7ed3\u6784\u5728\u4e0d\u540c\u7248\u672c\u4e4b\u95f4\u4f1a\u6709\u53d8\u66f4\uff0c\u6b64\u65f6\u4f1a\u51fa\u73b0\u5386\u53f2\u6570\u636e\u7c7b\u578b\u53d8\u66f4\u6216\u8005 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":78,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61,12],"tags":[63,64,62],"class_list":["post-263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ck","category-middleware","tag-clickhouse","tag-sql","tag-62"],"_links":{"self":[{"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/posts\/263"}],"collection":[{"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/comments?post=263"}],"version-history":[{"count":2,"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/posts\/263\/revisions"}],"predecessor-version":[{"id":265,"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/posts\/263\/revisions\/265"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/media\/78"}],"wp:attachment":[{"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/media?parent=263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/categories?post=263"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/yangnanbei.top\/index.php\/wp-json\/wp\/v2\/tags?post=263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}