{"id":179030,"date":"2024-11-08T22:25:17","date_gmt":"2024-11-08T14:25:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179030\/"},"modified":"2024-11-08T22:25:18","modified_gmt":"2024-11-08T14:25:18","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a42p06-duplicate_schema%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179030\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P06 &#8211; duplicate_schema\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a42p06-duplicate_schema-kuPqdoZcVk\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P06 &#8211; duplicate_schema<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f\u932f\u8aa4\u4ee3\u78bc 42P06\uff0c\u8a72\u932f\u8aa4\u8868\u793a\u300cduplicate_schema\u300d\uff0c\u5373\u91cd\u8907\u7684\u6a21\u5f0f\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u5b58\u5728\u7684\u6a21\u5f0f\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u554f\u984c\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-kuPqdoZcVk\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>PostgreSQL \u4e2d\u7684\u6a21\u5f0f\uff08schema\uff09\u662f\u4e00\u7a2e\u547d\u540d\u7a7a\u9593\uff0c\u7528\u65bc\u7d44\u7e54\u6578\u64da\u5eab\u4e2d\u7684\u5c0d\u8c61\uff0c\u5982\u8868\u3001\u8996\u5716\u548c\u51fd\u6578\u3002\u7576\u4f60\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u5b58\u5728\u7684\u6a21\u5f0f\u6642\uff0cPostgreSQL \u6703\u8fd4\u56de\u932f\u8aa4\u4ee3\u78bc 42P06\u3002\u9019\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u91cd\u8907\u7684\u5275\u5efa\u8a9e\u53e5\uff1a<\/strong>\u5982\u679c\u5728 SQL \u8173\u672c\u4e2d\u591a\u6b21\u57f7\u884c\u5275\u5efa\u6a21\u5f0f\u7684\u8a9e\u53e5\uff0c\u5247\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e0d\u6b63\u78ba\u7684\u689d\u4ef6\u6aa2\u67e5\uff1a<\/strong>\u5728\u5275\u5efa\u6a21\u5f0f\u4e4b\u524d\uff0c\u672a\u6aa2\u67e5\u8a72\u6a21\u5f0f\u662f\u5426\u5df2\u5b58\u5728\u3002<\/li>\n<li><strong>\u591a\u500b\u9023\u63a5\u540c\u6642\u57f7\u884c\uff1a<\/strong>\u5982\u679c\u591a\u500b\u9023\u63a5\u540c\u6642\u5617\u8a66\u5275\u5efa\u76f8\u540c\u7684\u6a21\u5f0f\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u885d\u7a81\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-kuPqdoZcVk\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42P06\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%a8%a1%e5%bc%8f%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8-kuPqdoZcVk\">1. \u6aa2\u67e5\u6a21\u5f0f\u662f\u5426\u5b58\u5728<\/h3>\n<p>\u5728\u5275\u5efa\u6a21\u5f0f\u4e4b\u524d\uff0c\u9996\u5148\u6aa2\u67e5\u8a72\u6a21\u5f0f\u662f\u5426\u5df2\u5b58\u5728\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\uff1a<\/p>\n<pre><code>SELECT schema_name \nFROM information_schema.schemata \nWHERE schema_name = 'your_schema_name';<\/code><\/pre>\n<p>\u5982\u679c\u67e5\u8a62\u7d50\u679c\u8fd4\u56de\u8a72\u6a21\u5f0f\u7684\u540d\u7a31\uff0c\u5247\u8868\u793a\u8a72\u6a21\u5f0f\u5df2\u5b58\u5728\uff0c\u7121\u9700\u518d\u6b21\u5275\u5efa\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e5%89%b5%e5%bb%ba%e8%aa%9e%e5%8f%a5-kuPqdoZcVk\">2. \u4f7f\u7528\u689d\u4ef6\u5275\u5efa\u8a9e\u53e5<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u689d\u4ef6\u8a9e\u53e5\u4f86\u907f\u514d\u91cd\u8907\u5275\u5efa\u6a21\u5f0f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 PL\/pgSQL \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DO $$\nBEGIN\n    IF NOT EXISTS (SELECT 1 FROM pg_namespace WHERE nspname = 'your_schema_name') THEN\n        CREATE SCHEMA your_schema_name;\n    END IF;\nEND $$;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u6703\u6aa2\u67e5\u6a21\u5f0f\u662f\u5426\u5b58\u5728\uff0c\u53ea\u6709\u5728\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u624d\u6703\u5275\u5efa\u3002<\/p>\n<h3 id=\"3-%e8%99%95%e7%90%86%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c-kuPqdoZcVk\">3. \u8655\u7406\u4e26\u767c\u554f\u984c<\/h3>\n<p>\u5982\u679c\u591a\u500b\u9023\u63a5\u540c\u6642\u5617\u8a66\u5275\u5efa\u76f8\u540c\u7684\u6a21\u5f0f\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u9396\u5b9a\u6a5f\u5236\u4f86\u907f\u514d\u885d\u7a81\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>LOCK<\/code> \u8a9e\u53e5\u4f86\u9396\u5b9a\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u78ba\u4fdd\u53ea\u6709\u4e00\u500b\u9023\u63a5\u53ef\u4ee5\u57f7\u884c\u5275\u5efa\u64cd\u4f5c\uff1a<\/p>\n<pre><code>BEGIN;\nLOCK TABLE pg_namespace IN EXCLUSIVE MODE;\nCREATE SCHEMA your_schema_name;\nCOMMIT;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-kuPqdoZcVk\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42P06 &#8211; duplicate_schema \u901a\u5e38\u662f\u7531\u65bc\u91cd\u8907\u5275\u5efa\u6a21\u5f0f\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u6a21\u5f0f\u662f\u5426\u5b58\u5728\u3001\u4f7f\u7528\u689d\u4ef6\u5275\u5efa\u8a9e\u53e5\u4ee5\u53ca\u8655\u7406\u4e26\u767c\u554f\u984c\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u4e86\u89e3\u9019\u4e9b\u89e3\u6c7a\u65b9\u6848\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\uff0c\u9084\u80fd\u6e1b\u5c11\u5728\u6578\u64da\u5eab\u7ba1\u7406\u904e\u7a0b\u4e2d\u9047\u5230\u7684\u554f\u984c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u90e8\u7f72\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42P06 &#8211; duplicate_schema\uff0c\u89e3\u6c7a\u91cd\u8907\u6a21\u5f0f\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u6b63\u5e38\u904b\u884c\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-179030","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179030","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=179030"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179030\/revisions"}],"predecessor-version":[{"id":179031,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179030\/revisions\/179031"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}