{"id":396,"date":"2020-07-06T15:49:12","date_gmt":"2020-07-06T07:49:12","guid":{"rendered":"http:\/\/www.gbase8.cn\/?p=396"},"modified":"2023-02-01T16:00:11","modified_gmt":"2023-02-01T08:00:11","slug":"gbase-8a%e9%9b%86%e7%be%a4%e5%b8%b8%e8%a7%81%e6%8a%a5%e9%94%99-aggregation-function-group_concat-overflow","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/396","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u96c6\u7fa4\u5e38\u89c1\u62a5\u9519 Aggregation function group_concat overflow"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2adbec1d277\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2adbec1d277\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/396\/#%E5%8E%9F%E5%9B%A0%EF%BC%9A\" >\u539f\u56e0\uff1a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/396\/#%E8%A7%A3%E5%86%B3%EF%BC%9A\" >\u89e3\u51b3\uff1a<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8E%9F%E5%9B%A0%EF%BC%9A\"><\/span>\u539f\u56e0\uff1a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>  group_concat\u5185\u90e8\u62fc\u63a5\u7684\u5b57\u7b26\u4e32\uff0c\u8d85\u8fc7\u4e86\u53c2\u6570 group_concat_max_len\u9650\u5236\u3002 GBase 8a\u96c6\u7fa4\u5e38\u89c1\u62a5\u9519 Aggregation function group_concat overflow<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E5%86%B3%EF%BC%9A\"><\/span>\u89e3\u51b3\uff1a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u63d0\u9ad8\u53c2\u6570\u6700\u5927\u503c<\/p>\n\n\n\n<p>\u901a\u8fc7TOPN \u53c2\u6570\uff0c\u9650\u5236\u62fc\u63a5\u7684\u7ed3\u679c\u884c\u6570\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"1019\" height=\"588\" src=\"http:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/07\/image-1.png\" alt=\"\" class=\"wp-image-397\"\/><\/figure>\n\n\n\n<p>\u53c2\u6570\u8be6\u60c5\uff0c\u8bf7\u53c2\u8003<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-\u8001\u7d2b\u7af9\u7684\u5bb6 wp-block-embed-\u8001\u7d2b\u7af9\u7684\u5bb6\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"jmQCd0n1PY\"><a href=\"https:\/\/www.gbase8.cn\/en\/394\/\">GBase 8a\u96c6\u7fa4group_concat\u957f\u5ea6\u9650\u5236<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u300aGBase 8a\u96c6\u7fa4group_concat\u957f\u5ea6\u9650\u5236\u300b\u2014\u8001\u7d2b\u7af9\u7684\u5bb6\" src=\"https:\/\/www.gbase8.cn\/394\/embed#?secret=jmQCd0n1PY\" data-secret=\"jmQCd0n1PY\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>","protected":false},"excerpt":{"rendered":"<p>\u5357\u5927\u901a\u7528GBase 8a\u96c6\u7fa4\u5e38\u89c1\u62a5\u9519 Aggregation function group_concat overflow<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-396","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=396"}],"version-history":[{"count":3,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/396\/revisions"}],"predecessor-version":[{"id":10704,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/396\/revisions\/10704"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}