{"id":200666,"date":"2025-05-06T14:14:39","date_gmt":"2025-05-06T06:14:39","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200666\/"},"modified":"2025-05-06T14:14:39","modified_gmt":"2025-05-06T06:14:39","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88-new_pool-%e8%a1%a8%e4%b8%ad-chlid-%e4%b8%8d%e7%ad%89%e4%ba%8e-news_top-%e6%88%96-news_ent-%e6%97%b6%ef%bc%8c%e7%b4%a2%e5%bc%95%e7%b1%bb%e5%9e%8b%e4%b8%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200666\/","title":{"rendered":"\u4e3a\u4ec0\u4e48 new_pool \u8868\u4e2d chlid \u4e0d\u7b49\u4e8e \\&#8221;news_top\\&#8221; \u6216 \\&#8221;news_ent\\&#8221; \u65f6\uff0c\u7d22\u5f15\u7c7b\u578b\u4e3a\u5168\u8868\u626b\u63cf\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4e3a\u4ec0\u4e48 new_pool \u8868\u4e2d chlid \u4e0d\u7b49\u4e8e \\&#8221;news_top\\&#8221; \u6216 \\&#8221;news_ent\\&#8221; \u65f6\uff0c\u7d22\u5f15\u7c7b\u578b\u4e3a\u5168\u8868\u626b\u63cf\uff1f<\/h1>\n<p>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241111\/173129260967316dc175ef2.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>new_pool \u8868\u4e2d chlid \u4e0d\u7b49\u4e8e news_top \u6216 news_ent \u65f6\uff0c\u4e3a\u4ec0\u4e48\u7d22\u5f15\u7c7b\u578b\u4e3a\u5168\u8868\u626b\u63cf<\/strong><\/p>\n<p>\u5728\u5206\u6790\u6b64\u95ee\u9898\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u5148\u4e86\u89e3\u4e00\u4e0b new_pool \u8868\u4e2d\u7d22\u5f15\u7684\u5b9a\u4e49\uff1a<\/p>\n<pre>key `chlid` (`chlid`,`indextype`,`pubtime`)<\/pre>\n<p>\u8fd9\u4e2a\u7d22\u5f15\u5305\u542b\u4e09\u4e2a\u5217\uff1achlid\u3001indextype \u548c pubtime\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u56de\u5230\u95ee\u9898\u672c\u8eab\u3002\u95ee\u9898\u4e2d\u7684 sql \u8bed\u53e5\u5982\u4e0b\uff1a<\/p>\n<pre>select * from new_pool where chlid != \"news_top\" &amp;&amp; chlid != \"news_ent\" limit 1;<\/pre>\n<p>\u8fd9\u4e2a\u67e5\u8be2\u4f7f\u7528\u4e86 != \u8fd0\u7b97\u7b26\uff0c\u8fd9\u662f\u4e00\u79cd\u975e\u5e38\u6602\u8d35\u7684\u64cd\u4f5c\u3002\u5f53 mysql \u4f18\u5316\u5668\u68c0\u6d4b\u5230\u4f7f\u7528 != \u4f1a\u5bfc\u81f4\u6210\u672c\u8fc7\u9ad8\u65f6\uff0c\u5b83\u5c06\u9009\u62e9\u8fdb\u884c\u5168\u8868\u626b\u63cf\u3002\u8fd9\u662f\u56e0\u4e3a mysql \u4f18\u5316\u5668\u4f1a\u6bd4\u8f83 != \u4e2d\u7684\u6bcf\u4e2a\u503c\uff0c\u5bf9 new_pool \u8868\u7684\u5927\u5c0f\u800c\u8a00\uff0c\u8fd9\u8fc7\u4e8e\u6602\u8d35\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cmysql \u4f18\u5316\u5668\u51b3\u5b9a\u8fdb\u884c\u5168\u8868\u626b\u63cf\uff0c\u800c\u4e0d\u662f\u4f7f\u7528 chlid \u7d22\u5f15\u3002\u56e0\u6b64\uff0c\u7d22\u5f15\u7c7b\u578b\u88ab\u6807\u8bb0\u4e3a &#8220;all&#8221;\uff0c\u8868\u793a\u8be5\u67e5\u8be2\u5c06\u626b\u63cf\u6574\u4e2a\u8868\u6765\u627e\u5230\u6ee1\u8db3\u6761\u4ef6\u7684\u884c\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u4e3b\u673a\u5b9d\u8d1d\uff01\u66f4\u591a\u5173\u4e8e\u6570\u636e\u5e93\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4e3a\u4ec0\u4e48 new_pool \u8868\u4e2d &#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-200666","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200666","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=200666"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200666\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}