{"id":178996,"date":"2024-11-08T22:08:20","date_gmt":"2024-11-08T14:08:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178996\/"},"modified":"2024-11-08T22:08:21","modified_gmt":"2024-11-08T14:08:21","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%9a42710-duplicate_object%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178996\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42710 &#8211; duplicate_object\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%9a42710-duplicate_object-psmuCVviXl\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42710 &#8211; duplicate_object<\/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\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc 42710\uff0c\u8868\u793a\u5b58\u5728\u91cd\u8907\u7684\u5c0d\u8c61\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u7d93\u5b58\u5728\u7684\u5c0d\u8c61\u6642\uff0c\u4f8b\u5982\u8868\u3001\u7d22\u5f15\u6216\u8996\u5716\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406 PostgreSQL \u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-42710-%e7%9a%84%e5%8e%9f%e5%9b%a0-psmuCVviXl\">\u932f\u8aa4\u4ee3\u78bc 42710 \u7684\u539f\u56e0<\/h2>\n<p>PostgreSQL \u7684\u932f\u8aa4\u4ee3\u78bc 42710 \u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u91cd\u8907\u7684\u8868\u540d\uff1a<\/strong>\u7576\u4f60\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u7d93\u5b58\u5728\u7684\u8868\u6642\uff0c\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u91cd\u8907\u7684\u7d22\u5f15\u540d\uff1a<\/strong>\u5982\u679c\u4f60\u5617\u8a66\u5275\u5efa\u4e00\u500b\u7d22\u5f15\uff0c\u800c\u8a72\u7d22\u5f15\u7684\u540d\u7a31\u5df2\u7d93\u88ab\u5176\u4ed6\u7d22\u5f15\u4f7f\u7528\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u91cd\u8907\u7684\u8996\u5716\u540d\uff1a<\/strong>\u7576\u4f60\u5275\u5efa\u4e00\u500b\u8996\u5716\uff0c\u800c\u8a72\u8996\u5716\u7684\u540d\u7a31\u5df2\u7d93\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\u6642\uff0c\u4e5f\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4-42710-psmuCVviXl\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4 42710<\/h2>\n<p>\u4fee\u5fa9 PostgreSQL \u932f\u8aa4 42710 \u7684\u65b9\u6cd5\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%b0%8d%e8%b1%a1%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8-psmuCVviXl\">1. \u6aa2\u67e5\u5c0d\u8c61\u662f\u5426\u5b58\u5728<\/h3>\n<p>\u5728\u5275\u5efa\u65b0\u5c0d\u8c61\u4e4b\u524d\uff0c\u9996\u5148\u6aa2\u67e5\u8a72\u5c0d\u8c61\u662f\u5426\u5df2\u7d93\u5b58\u5728\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u8868\u3001\u7d22\u5f15\u6216\u8996\u5716\u7684\u5b58\u5728\u6027\uff1a<\/p>\n<pre><code>-- \u6aa2\u67e5\u8868\u662f\u5426\u5b58\u5728\nSELECT to_regclass('public.your_table_name');\n\n-- \u6aa2\u67e5\u7d22\u5f15\u662f\u5426\u5b58\u5728\nSELECT * FROM pg_indexes WHERE indexname = 'your_index_name';\n\n-- \u6aa2\u67e5\u8996\u5716\u662f\u5426\u5b58\u5728\nSELECT * FROM information_schema.views WHERE table_name = 'your_view_name';<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-if-not-exists-%e8%aa%9e%e5%8f%a5-psmuCVviXl\">2. \u4f7f\u7528 IF NOT EXISTS \u8a9e\u53e5<\/h3>\n<p>\u5728\u5275\u5efa\u5c0d\u8c61\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>IF NOT EXISTS<\/code> \u8a9e\u53e5\u4f86\u907f\u514d\u91cd\u8907\u5275\u5efa\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE IF NOT EXISTS your_table_name (\n    id SERIAL PRIMARY KEY,\n    name VARCHAR(100)\n);<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u5982\u679c\u8868\u5df2\u7d93\u5b58\u5728\uff0c\u5247\u4e0d\u6703\u5f15\u767c\u932f\u8aa4\u3002<\/p>\n<h3 id=\"3-%e5%88%aa%e9%99%a4%e6%88%96%e9%87%8d%e5%91%bd%e5%90%8d%e7%8f%be%e6%9c%89%e5%b0%8d%e8%b1%a1-psmuCVviXl\">3. \u522a\u9664\u6216\u91cd\u547d\u540d\u73fe\u6709\u5c0d\u8c61<\/h3>\n<p>\u5982\u679c\u78ba\u5b9a\u9700\u8981\u5275\u5efa\u4e00\u500b\u65b0\u7684\u5c0d\u8c61\uff0c\u800c\u8a72\u5c0d\u8c61\u7684\u540d\u7a31\u5df2\u7d93\u88ab\u4f7f\u7528\uff0c\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u6216\u91cd\u547d\u540d\u73fe\u6709\u7684\u5c0d\u8c61\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>-- \u522a\u9664\u73fe\u6709\u8868\nDROP TABLE your_table_name;\n\n-- \u91cd\u547d\u540d\u73fe\u6709\u7d22\u5f15\nALTER INDEX old_index_name RENAME TO new_index_name;<\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e5%91%bd%e5%90%8d%e7%a9%ba%e9%96%93-psmuCVviXl\">4. \u6aa2\u67e5\u547d\u540d\u7a7a\u9593<\/h3>\n<p>\u5728 PostgreSQL \u4e2d\uff0c\u5c0d\u8c61\u540d\u7a31\u662f\u5340\u5206\u5927\u5c0f\u5beb\u7684\uff0c\u4e26\u4e14\u53ef\u4ee5\u5b58\u5728\u65bc\u4e0d\u540c\u7684\u547d\u540d\u7a7a\u9593\u4e2d\u3002\u78ba\u4fdd\u5728\u5275\u5efa\u5c0d\u8c61\u6642\u4f7f\u7528\u6b63\u78ba\u7684\u547d\u540d\u7a7a\u9593\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u885d\u7a81\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-psmuCVviXl\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42710 \u901a\u5e38\u662f\u7531\u65bc\u5c0d\u8c61\u540d\u7a31\u91cd\u8907\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u5c0d\u8c61\u662f\u5426\u5b58\u5728\u3001\u4f7f\u7528 <code>IF NOT EXISTS<\/code> \u8a9e\u53e5\u3001\u522a\u9664\u6216\u91cd\u547d\u540d\u73fe\u6709\u5c0d\u8c61\u4ee5\u53ca\u6aa2\u67e5\u547d\u540d\u7a7a\u9593\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u4e86\u89e3\u9019\u4e9b\u89e3\u6c7a\u65b9\u6848\u5c07\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406 PostgreSQL \u6578\u64da\u5eab\uff0c\u6e1b\u5c11\u932f\u8aa4\u767c\u751f\u7684\u983b\u7387\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\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\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 42710\uff08duplicate_object\uff09\uff0c\u89e3\u6c7a\u91cd\u8907\u5c0d\u8c61\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-178996","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178996","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=178996"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178996\/revisions"}],"predecessor-version":[{"id":178997,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178996\/revisions\/178997"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178996"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178996"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}