{"id":96848,"date":"2024-10-20T12:52:19","date_gmt":"2024-10-20T04:52:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96848\/"},"modified":"2024-10-20T12:52:20","modified_gmt":"2024-10-20T04:52:20","slug":"postgresql-42p16-%e7%84%a1%e6%95%88%e7%9a%84%e8%a1%a8%e5%ae%9a%e7%be%a9-%e6%8a%a5%e9%94%99-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%a4%8d-%e8%bf%9c%e7%a8%8b%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96848\/","title":{"rendered":"PostgreSQL 42P16: \u7121\u6548\u7684\u8868\u5b9a\u7fa9 \u62a5\u9519 \u6545\u969c\u4fee\u590d \u8fdc\u7a0b\u5904\u7406"},"content":{"rendered":"<h1 id=\"postgresql-42p16-%e7%84%a1%e6%95%88%e7%9a%84%e8%a1%a8%e5%ae%9a%e7%be%a9-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-pCYbtCtjXx\">PostgreSQL 42P16: \u7121\u6548\u7684\u8868\u5b9a\u7fa9 \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/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\u4fbf\u662f 42P16\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u300c\u7121\u6548\u7684\u8868\u5b9a\u7fa9\u300d\uff0c\u4e26\u4e14\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u5931\u6557\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u9060\u7a0b\u8655\u7406\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4-42p16-%e7%9a%84%e5%8e%9f%e5%9b%a0-pCYbtCtjXx\">\u932f\u8aa4 42P16 \u7684\u539f\u56e0<\/h2>\n<p>PostgreSQL \u7684\u932f\u8aa4\u4ee3\u78bc 42P16 \u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u8868\u7d50\u69cb\u4e0d\u4e00\u81f4\uff1a<\/strong>\u7576\u8868\u7684\u7d50\u69cb\u8207\u67e5\u8a62\u6216\u64cd\u4f5c\u4e0d\u5339\u914d\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u7576\u4f60\u5617\u8a66\u63d2\u5165\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u5217\u6642\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u5982\u679c\u4f60\u5617\u8a66\u5c07\u4e0d\u517c\u5bb9\u7684\u6578\u64da\u985e\u578b\u63d2\u5165\u5230\u8868\u4e2d\uff0cPostgreSQL \u6703\u5831\u544a\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7f3a\u5c11\u5fc5\u8981\u7684\u7d04\u675f\u689d\u4ef6\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u8868\u7684\u7d04\u675f\u689d\u4ef6\u672a\u6b63\u78ba\u8a2d\u7f6e\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\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%a4-42p16-pCYbtCtjXx\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4 42P16<\/h2>\n<p>\u4fee\u5fa9 PostgreSQL \u7684 42P16 \u932f\u8aa4\u901a\u5e38\u9700\u8981\u6aa2\u67e5\u548c\u8abf\u6574\u8868\u7684\u5b9a\u7fa9\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u4fee\u5fa9\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e8%a1%a8%e7%b5%90%e6%a7%8b-pCYbtCtjXx\">1. \u6aa2\u67e5\u8868\u7d50\u69cb<\/h3>\n<pre><code>-- \u67e5\u770b\u8868\u7684\u7d50\u69cb\nd \u8868\u540d\n<\/code><\/pre>\n<p>\u4f7f\u7528\u4e0a\u8ff0\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u8868\u7684\u7d50\u69cb\uff0c\u78ba\u4fdd\u6240\u6709\u5217\u548c\u6578\u64da\u985e\u578b\u90fd\u6b63\u78ba\u7121\u8aa4\u3002<\/p>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-pCYbtCtjXx\">2. \u78ba\u8a8d\u6578\u64da\u985e\u578b<\/h3>\n<p>\u78ba\u4fdd\u63d2\u5165\u7684\u6578\u64da\u985e\u578b\u8207\u8868\u4e2d\u5b9a\u7fa9\u7684\u6578\u64da\u985e\u578b\u76f8\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8868\u4e2d\u67d0\u5217\u5b9a\u7fa9\u70ba\u6574\u6578\u985e\u578b\uff0c\u5247\u63d2\u5165\u6642\u5fc5\u9808\u63d0\u4f9b\u6574\u6578\u503c\u3002<\/p>\n<pre><code>-- \u63d2\u5165\u6578\u64da\u793a\u4f8b\nINSERT INTO \u8868\u540d (\u52171, \u52172) VALUES (1, '\u6587\u672c');\n<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e7%b4%84%e6%9d%9f%e6%a2%9d%e4%bb%b6-pCYbtCtjXx\">3. \u6aa2\u67e5\u7d04\u675f\u689d\u4ef6<\/h3>\n<p>\u5982\u679c\u8868\u4e2d\u6709\u7d04\u675f\u689d\u4ef6\uff08\u5982\u4e3b\u9375\u3001\u5916\u9375\u7b49\uff09\uff0c\u8acb\u78ba\u4fdd\u9019\u4e9b\u7d04\u675f\u689d\u4ef6\u4e0d\u6703\u88ab\u9055\u53cd\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7d04\u675f\u689d\u4ef6\uff1a<\/p>\n<pre><code>-- \u67e5\u770b\u7d04\u675f\u689d\u4ef6\nSELECT conname, contype FROM pg_constraint WHERE conrelid = '\u8868\u540d'::regclass;\n<\/code><\/pre>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-postgresql-%e9%8c%af%e8%aa%a4-pCYbtCtjXx\">\u9060\u7a0b\u8655\u7406 PostgreSQL \u932f\u8aa4<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u9060\u7a0b\u8655\u7406 PostgreSQL \u932f\u8aa4\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u5f0f\u5be6\u73fe\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 SSH \u9023\u63a5\uff1a<\/strong>\u5982\u679c\u4f60\u7684 PostgreSQL \u6578\u64da\u5eab\u904b\u884c\u5728\u9060\u7a0b\u4f3a\u670d\u5668\u4e0a\uff0c\u53ef\u4ee5\u901a\u904e SSH \u9023\u63a5\u5230\u4f3a\u670d\u5668\uff0c\u7136\u5f8c\u4f7f\u7528 psql \u547d\u4ee4\u884c\u5de5\u5177\u9032\u884c\u6545\u969c\u6392\u9664\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5716\u5f62\u5316\u7ba1\u7406\u5de5\u5177\uff1a<\/strong>\u8a31\u591a\u5716\u5f62\u5316\u7ba1\u7406\u5de5\u5177\uff08\u5982 pgAdmin\uff09\u5141\u8a31\u7528\u6236\u9060\u7a0b\u9023\u63a5\u5230 PostgreSQL \u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u76f4\u89c0\u7684\u754c\u9762\u4f86\u6aa2\u67e5\u548c\u4fee\u5fa9\u932f\u8aa4\u3002<\/li>\n<li><strong>\u67e5\u770b\u65e5\u8a8c\u6587\u4ef6\uff1a<\/strong>\u6aa2\u67e5 PostgreSQL \u7684\u65e5\u8a8c\u6587\u4ef6\u53ef\u4ee5\u63d0\u4f9b\u6709\u95dc\u932f\u8aa4\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-pCYbtCtjXx\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u7684 42P16 \u932f\u8aa4\u901a\u5e38\u8207\u7121\u6548\u7684\u8868\u5b9a\u7fa9\u6709\u95dc\uff0c\u89e3\u6c7a\u6b64\u554f\u984c\u9700\u8981\u6aa2\u67e5\u8868\u7d50\u69cb\u3001\u6578\u64da\u985e\u578b\u548c\u7d04\u675f\u689d\u4ef6\u3002\u901a\u904e\u9069\u7576\u7684\u6545\u969c\u6392\u9664\u6b65\u9a5f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u6b64\u5916\uff0c\u9060\u7a0b\u8655\u7406 PostgreSQL \u932f\u8aa4\u7684\u65b9\u5f0f\u4e5f\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9748\u6d3b\u6027\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4f86\u904b\u884c\u60a8\u7684 PostgreSQL \u6578\u64da\u5eab\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5eab\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u51b3PostgreSQL 42P16\u9519\u8bef\uff1a\u65e0\u6548\u7684\u8868\u5b9a\u4e49\uff0c\u63d0\u4f9b\u6545\u969c\u4fee\u590d\u548c\u8fdc\u7a0b\u5904\u7406\u65b9\u6cd5\uff0c\u786e\u4fdd\u6570\u636e\u5e93\u6b63\u5e38\u8fd0\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-96848","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96848","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=96848"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96848\/revisions"}],"predecessor-version":[{"id":96849,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96848\/revisions\/96849"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}