{"id":178722,"date":"2024-11-08T20:21:19","date_gmt":"2024-11-08T12:21:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178722\/"},"modified":"2024-11-08T20:21:20","modified_gmt":"2024-11-08T12:21:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a22014-invalid_argument_for_ntile_function%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178722\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a22014 &#8211; invalid_argument_for_ntile_function\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a22014-invalid_argument_for_ntile_function-CERbKIiOlV\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a22014 &#8211; invalid_argument_for_ntile_function<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc22014\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8207\u4f7f\u7528<code>NTILE<\/code>\u51fd\u6578\u6642\u7684\u53c3\u6578\u4e0d\u6b63\u78ba\u6709\u95dc\u3002<code>NTILE<\/code>\u51fd\u6578\u7528\u65bc\u5c07\u7d50\u679c\u96c6\u5206\u6210\u6307\u5b9a\u6578\u91cf\u7684\u6876\uff08\u6216\u5206\u7d44\uff09\uff0c\u4e26\u5c07\u6bcf\u4e00\u884c\u5206\u914d\u5230\u76f8\u61c9\u7684\u6876\u4e2d\u3002\u7576\u50b3\u905e\u7d66<code>NTILE<\/code>\u7684\u53c3\u6578\u4e0d\u7b26\u5408\u8981\u6c42\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3ntile%e5%87%bd%e6%95%b8-CERbKIiOlV\">\u7406\u89e3NTILE\u51fd\u6578<\/h2>\n<p><code>NTILE<\/code>\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>NTILE(num_buckets) OVER (ORDER BY column_name)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>num_buckets<\/code>\u662f\u8981\u5275\u5efa\u7684\u6876\u7684\u6578\u91cf\uff0c\u800c<code>column_name<\/code>\u662f\u7528\u65bc\u6392\u5e8f\u7684\u5217\u3002\u9019\u500b\u51fd\u6578\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5c07\u6578\u64da\u96c6\u5206\u6210\u76f8\u7b49\u7684\u90e8\u5206\uff0c\u4fbf\u65bc\u9032\u884c\u5206\u6790\u548c\u5831\u544a\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc22014%e7%9a%84%e5%8e%9f%e5%9b%a0-CERbKIiOlV\">\u932f\u8aa4\u4ee3\u78bc22014\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u4f60\u5728\u4f7f\u7528<code>NTILE<\/code>\u51fd\u6578\u6642\uff0c\u5982\u679c\u50b3\u905e\u7684<code>num_buckets<\/code>\u53c3\u6578\u4e0d\u662f\u6b63\u6574\u6578\uff0cPostgreSQL\u5c07\u8fd4\u56de\u932f\u8aa4\u4ee3\u78bc22014\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u50b3\u905e\u7684\u53c3\u6578\u70ba\u8ca0\u6578\u6216\u96f6\u3002<\/li>\n<li>\u50b3\u905e\u7684\u53c3\u6578\u70baNULL\u3002<\/li>\n<li>\u50b3\u905e\u7684\u53c3\u6578\u70ba\u975e\u6574\u6578\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4-CERbKIiOlV\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u50b3\u905e\u7d66<code>NTILE<\/code>\u7684\u53c3\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u4fee\u5fa9\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e4%bf%9d%e5%8f%83%e6%95%b8%e7%82%ba%e6%ad%a3%e6%95%b4%e6%95%b8-CERbKIiOlV\">1. \u78ba\u4fdd\u53c3\u6578\u70ba\u6b63\u6574\u6578<\/h3>\n<p>\u6aa2\u67e5<code>num_buckets<\/code>\u7684\u503c\uff0c\u78ba\u4fdd\u5b83\u662f\u4e00\u500b\u6b63\u6574\u6578\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT NTILE(4) OVER (ORDER BY salary) FROM employees;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c<code>4<\/code>\u662f\u6b63\u6574\u6578\uff0c\u9019\u6a23\u7684\u67e5\u8a62\u4e0d\u6703\u5f15\u767c\u932f\u8aa4\u3002<\/p>\n<h3 id=\"2-%e8%99%95%e7%90%86null%e5%80%bc-CERbKIiOlV\">2. \u8655\u7406NULL\u503c<\/h3>\n<p>\u5982\u679c<code>num_buckets<\/code>\u7684\u503c\u4f86\u81ea\u65bc\u4e00\u500b\u8b8a\u91cf\u6216\u8a08\u7b97\u7d50\u679c\uff0c\u8acb\u78ba\u4fdd\u5728\u4f7f\u7528\u4e4b\u524d\u9032\u884cNULL\u6aa2\u67e5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT NTILE(COALESCE(num_buckets, 1)) OVER (ORDER BY salary) FROM employees;<\/code><\/pre>\n<p>\u9019\u88e1\u4f7f\u7528<code>COALESCE<\/code>\u51fd\u6578\u4f86\u78ba\u4fdd\u5982\u679c<code>num_buckets<\/code>\u70baNULL\uff0c\u5247\u9ed8\u8a8d\u70ba1\u3002<\/p>\n<h3 id=\"3-%e7%a2%ba%e4%bf%9d%e9%a1%9e%e5%9e%8b%e6%ad%a3%e7%a2%ba-CERbKIiOlV\">3. \u78ba\u4fdd\u985e\u578b\u6b63\u78ba<\/h3>\n<p>\u5982\u679c<code>num_buckets<\/code>\u7684\u503c\u4f86\u81ea\u65bc\u5176\u4ed6\u8868\u6216\u8a08\u7b97\uff0c\u8acb\u78ba\u4fdd\u5b83\u7684\u985e\u578b\u662f\u6574\u6578\u3002\u53ef\u4ee5\u4f7f\u7528<code>CAST<\/code>\u51fd\u6578\u4f86\u5f37\u5236\u8f49\u63db\u985e\u578b\uff1a<\/p>\n<pre><code>SELECT NTILE(CAST(num_buckets AS INTEGER)) OVER (ORDER BY salary) FROM employees;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-CERbKIiOlV\">\u7d50\u8ad6<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc22014\u901a\u5e38\u662f\u7531\u65bc<code>NTILE<\/code>\u51fd\u6578\u7684\u53c3\u6578\u4e0d\u6b63\u78ba\u5f15\u8d77\u7684\u3002\u901a\u904e\u78ba\u4fdd\u50b3\u905e\u7684\u53c3\u6578\u70ba\u6b63\u6574\u6578\u3001\u8655\u7406NULL\u503c\u4ee5\u53ca\u78ba\u4fdd\u985e\u578b\u6b63\u78ba\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u9019\u6a23\u4e0d\u50c5\u80fd\u63d0\u9ad8\u67e5\u8a62\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u5206\u6790\u7684\u6e96\u78ba\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5728\u4f7f\u7528PostgreSQL\u6216\u5176\u4ed6\u6578\u64da\u5eab\u6642\u9700\u8981\u7a69\u5b9a\u7684\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u4ee5\u7372\u5f97\u66f4\u597d\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc22014\uff0c\u89e3\u6c7antile\u51fd\u6578\u7684\u7121\u6548\u53c3\u6578\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-178722","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178722","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=178722"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178722\/revisions"}],"predecessor-version":[{"id":178723,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178722\/revisions\/178723"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}