{"id":21413,"date":"2024-01-02T08:58:24","date_gmt":"2024-01-02T08:58:24","guid":{"rendered":"https:\/\/server.hk\/blog\/21413\/"},"modified":"2024-11-14T10:34:53","modified_gmt":"2024-11-14T02:34:53","slug":"how-to-fix-postgresql-error-code-42883-undefined_function","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21413\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7a PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42883 &#8211; undefined_function"},"content":{"rendered":"<h1 id=\"how-to-fix-postgresql-error-code-42883-undefined_function-OGPmmUndkm\">\u5982\u4f55\u89e3\u6c7a PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42883 &#8211; undefined_function<\/h1>\n<p>PostgreSQL \u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u6027\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u5404\u7a2e\u5404\u6a23\u7684\u529f\u80fd\u548c\u80fd\u529b\u3002\u7136\u800c\uff0c\u8207\u6240\u6709\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u53ef\u80fd\u6703\u9047\u5230\u4e2d\u65b7\u6b63\u5e38\u904b\u4f5c\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u70ba PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42883 &#8211; undefined_function\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u6210\u56e0\u4e26\u63d0\u4f9b\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"understanding-the-error-OGPmmUndkm\">\u7406\u89e3\u9019\u500b\u932f\u8aa4<\/h2>\n<p>\u7576\u5728\u67e5\u8a62\u4e2d\u8abf\u7528\u4e00\u500b\u51fd\u6578\uff0c\u4f46\u8a72\u51fd\u6578\u4e0d\u5b58\u5728\u6216\u672a\u5728\u6578\u64da\u5eab\u4e2d\u5b9a\u7fa9\u6642\uff0c\u5c31\u6703\u51fa\u73fe PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42883 &#8211; undefined_function\u3002\u9019\u7a2e\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u51fd\u6578\u540d\u7a31\u6216\u5176\u53c3\u6578\u8207\u5be6\u969b\u51fd\u6578\u5b9a\u7fa9\u4e0d\u5339\u914d\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"possible-causes-OGPmmUndkm\">\u53ef\u80fd\u7684\u6210\u56e0<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42883 &#8211; undefined_function \u53ef\u80fd\u7531\u5e7e\u500b\u6f5b\u5728\u6210\u56e0\u5f15\u8d77\uff1a<\/p>\n<ul>\n<li><strong>\u7f3a\u5931\u51fd\u6578\uff1a<\/strong>\u6240\u8abf\u7528\u7684\u51fd\u6578\u5728\u6578\u64da\u5eab\u4e2d\u4e0d\u5b58\u5728\u3002<\/li>\n<li><strong>\u51fd\u6578\u540d\u7a31\u932f\u8aa4\uff1a<\/strong>\u51fd\u6578\u540d\u7a31\u62fc\u5beb\u932f\u8aa4\u6216\u8207\u5be6\u969b\u51fd\u6578\u540d\u7a31\u4e0d\u7b26\u3002<\/li>\n<li><strong>\u51fd\u6578\u53c3\u6578\u932f\u8aa4\uff1a<\/strong>\u8abf\u7528\u51fd\u6578\u6642\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u6216\u4e0d\u5339\u914d\u7684\u53c3\u6578\u3002<\/li>\n<li><strong>\u6a21\u5f0f\u4e0d\u5339\u914d\uff1a<\/strong>\u51fd\u6578\u5728\u8207\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u4e0d\u540c\u6a21\u5f0f\u4e2d\u5b9a\u7fa9\u3002<\/li>\n<\/ul>\n<h2 id=\"fixing-the-error-OGPmmUndkm\">\u4fee\u5fa9\u6b64\u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42883 &#8211; undefined_function\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u64cd\u4f5c\uff1a<\/p>\n<h3 id=\"1-check-function-existence-OGPmmUndkm\">1. \u6aa2\u67e5\u51fd\u6578\u662f\u5426\u5b58\u5728<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u9a57\u8b49\u51fd\u6578\u662f\u5426\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\uff1a<\/p>\n<pre><code>SELECT proname FROM pg_proc WHERE proname = 'function_name';<\/code><\/pre>\n<p>\u5c07 &#8216;function_name&#8217; \u66ff\u63db\u70ba\u60a8\u5617\u8a66\u8abf\u7528\u7684\u51fd\u6578\u7684\u5be6\u969b\u540d\u7a31\u3002\u5982\u679c\u67e5\u8a62\u6c92\u6709\u8fd4\u56de\u7d50\u679c\uff0c\u5247\u8868\u793a\u8a72\u51fd\u6578\u5728\u6578\u64da\u5eab\u4e2d\u4e0d\u5b58\u5728\u3002<\/p>\n<h3 id=\"2-verify-function-name-and-arguments-OGPmmUndkm\">2. \u9a57\u8b49\u51fd\u6578\u540d\u7a31\u548c\u53c3\u6578<\/h3>\n<p>\u4ed4\u7d30\u6aa2\u67e5\u67e5\u8a62\u4e2d\u7684\u51fd\u6578\u540d\u7a31\u53ca\u5176\u53c3\u6578\u3002\u78ba\u4fdd\u5b83\u5011\u8207\u5be6\u969b\u51fd\u6578\u5b9a\u7fa9\u5339\u914d\u3002\u8acb\u6ce8\u610f\u51fd\u6578\u540d\u7a31\u7684\u5927\u5c0f\u5beb\uff0c\u56e0\u70ba PostgreSQL \u9ed8\u8a8d\u5c0d\u5927\u5c0f\u5beb\u654f\u611f\u3002<\/p>\n<h3 id=\"3-check-schema-OGPmmUndkm\">3. \u6aa2\u67e5\u6a21\u5f0f<\/h3>\n<p>\u5982\u679c\u51fd\u6578\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5728\uff0c\u4f46\u5b9a\u7fa9\u5728\u4e0d\u540c\u7684\u6a21\u5f0f\u4e2d\uff0c\u5247\u9700\u8981\u5728\u51fd\u6578\u8abf\u7528\u4e2d\u6307\u5b9a\u8a72\u6a21\u5f0f\u3002\u4fee\u6539\u67e5\u8a62\u4ee5\u5305\u542b\u6a21\u5f0f\u540d\u7a31\uff1a<\/p>\n<pre><code>SELECT schema_name.function_name(arguments);<\/code><\/pre>\n<p>\u5c07 &#8216;schema_name&#8217; \u66ff\u63db\u70ba\u5be6\u969b\u7684\u6a21\u5f0f\u540d\u7a31\uff0c\u5c07 &#8216;function_name&#8217; \u66ff\u63db\u70ba\u51fd\u6578\u540d\u7a31\u3002<\/p>\n<h3 id=\"4-grant-permissions-OGPmmUndkm\">4. \u6388\u4e88\u6b0a\u9650<\/h3>\n<p>\u78ba\u4fdd\u57f7\u884c\u67e5\u8a62\u7684\u7528\u6236\u64c1\u6709\u8a2a\u554f\u548c\u57f7\u884c\u8a72\u51fd\u6578\u6240\u9700\u7684\u6b0a\u9650\u3002\u4f7f\u7528 GRANT \u8a9e\u53e5\u6388\u4e88\u6240\u9700\u7684\u6b0a\u9650\uff1a<\/p>\n<pre><code>GRANT EXECUTE ON FUNCTION function_name(arguments) TO username;<\/code><\/pre>\n<p>\u5c07 &#8216;function_name&#8217; \u66ff\u63db\u70ba\u51fd\u6578\u7684\u540d\u7a31\uff0c&#8217;arguments&#8217; \u66ff\u63db\u70ba\u51fd\u6578\u7684\u53c3\u6578\uff0c\u4e26\u5c07 &#8216;username&#8217; \u66ff\u63db\u70ba\u9069\u7576\u7684\u7528\u6236\u540d\u3002<\/p>\n<h2 id=\"summary-OGPmmUndkm\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42883 &#8211; undefined_function \u53ef\u901a\u904e\u6aa2\u67e5\u51fd\u6578\u5b58\u5728\u6027\u3001\u9a57\u8b49\u51fd\u6578\u540d\u7a31\u548c\u53c3\u6578\u3001\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u6a21\u5f0f\u4ee5\u53ca\u6388\u4e88\u5fc5\u8981\u7684\u6b0a\u9650\u4f86\u89e3\u6c7a\u3002\u5982\u679c\u60a8\u9047\u5230\u6b64\u932f\u8aa4\uff0c\u8acb\u9075\u5faa\u672c\u6587\u4e2d\u5217\u51fa\u7684\u6b65\u9a5f\u4ee5\u4fee\u5fa9\u5b83\uff0c\u78ba\u4fdd\u60a8\u7684 PostgreSQL \u6578\u64da\u5eab\u5e73\u7a69\u904b\u884c\u3002<\/p>\n<p>\u6709\u95dc VPS \u4e3b\u6a5f\u89e3\u6c7a\u65b9\u6848\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u89e3\u6c7a PostgreSQL &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21413","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21413","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=21413"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21413\/revisions"}],"predecessor-version":[{"id":24078,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21413\/revisions\/24078"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}