{"id":179008,"date":"2024-11-08T22:14:17","date_gmt":"2024-11-08T14:14:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179008\/"},"modified":"2024-11-08T22:14:17","modified_gmt":"2024-11-08T14:14:17","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%9a42809-wrong_object_type%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179008\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42809 &#8211; wrong_object_type\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%9a42809-wrong_object_type%ef%bc%9f-zkcNpsKyKx\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42809 &#8211; wrong_object_type\uff1f<\/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 42809\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8868\u793a\u300cwrong_object_type\u300d\u3002\u9019\u610f\u5473\u8457\u5728\u57f7\u884c\u67d0\u4e9b\u64cd\u4f5c\u6642\uff0c\u5c0d\u8c61\u7684\u985e\u578b\u4e0d\u6b63\u78ba\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-42809-%e7%9a%84%e5%8e%9f%e5%9b%a0-zkcNpsKyKx\">\u932f\u8aa4\u4ee3\u78bc 42809 \u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa4\u4ee3\u78bc 42809 \u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5617\u8a66\u5728\u4e0d\u6b63\u78ba\u7684\u5c0d\u8c61\u4e0a\u57f7\u884c\u64cd\u4f5c\uff0c\u4f8b\u5982\u5728\u8868\u4e0a\u57f7\u884c\u50c5\u9069\u7528\u65bc\u8996\u5716\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u5728 SQL \u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u5c0d\u8c61\u985e\u578b\uff0c\u4f8b\u5982\u5c07\u8868\u540d\u8207\u51fd\u6578\u540d\u6df7\u6dc6\u3002<\/li>\n<li>\u5728\u4f7f\u7528 JOIN \u6216\u5b50\u67e5\u8a62\u6642\uff0c\u5c0d\u8c61\u7684\u985e\u578b\u4e0d\u5339\u914d\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u60c5\u6cc1\u90fd\u53ef\u80fd\u5c0e\u81f4 PostgreSQL \u7121\u6cd5\u6b63\u78ba\u8b58\u5225\u5c0d\u8c61\u985e\u578b\uff0c\u5f9e\u800c\u5f15\u767c\u932f\u8aa4\u4ee3\u78bc 42809\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-42809-zkcNpsKyKx\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4\u4ee3\u78bc 42809<\/h2>\n<p>\u4fee\u5fa9\u6b64\u932f\u8aa4\u7684\u7b2c\u4e00\u6b65\u662f\u78ba\u5b9a\u5f15\u767c\u932f\u8aa4\u7684\u5177\u9ad4 SQL \u67e5\u8a62\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%e9%a1%9e%e5%9e%8b-zkcNpsKyKx\">1. \u6aa2\u67e5\u5c0d\u8c61\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u60a8\u6b63\u5728\u64cd\u4f5c\u7684\u5c0d\u8c61\u985e\u578b\u3002\u78ba\u4fdd\u60a8\u5728\u8868\u4e0a\u57f7\u884c\u7684\u64cd\u4f5c\u662f\u5408\u6cd5\u7684\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u5617\u8a66\u5728\u8868\u4e0a\u4f7f\u7528\u805a\u5408\u51fd\u6578\uff0c\u8acb\u78ba\u8a8d\u8a72\u51fd\u6578\u9069\u7528\u65bc\u8868\u7684\u6578\u64da\u985e\u578b\u3002<\/p>\n<pre><code>SELECT COUNT(*) FROM your_table; -- \u6b63\u78ba\u7528\u6cd5\nSELECT your_function() FROM your_table; -- \u932f\u8aa4\u7528\u6cd5\uff0c\u5047\u8a2d your_function() \u53ea\u9069\u7528\u65bc\u8996\u5716\n<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d-sql-%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%ad%a3%e7%a2%ba%e6%80%a7-zkcNpsKyKx\">2. \u78ba\u8a8d SQL \u67e5\u8a62\u7684\u6b63\u78ba\u6027<\/h3>\n<p>\u6aa2\u67e5 SQL \u67e5\u8a62\u7684\u8a9e\u6cd5\uff0c\u78ba\u4fdd\u6240\u6709\u5c0d\u8c61\u540d\u7a31\u90fd\u6b63\u78ba\u7121\u8aa4\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528 JOIN \u6216\u5b50\u67e5\u8a62\u6642\uff0c\u8acb\u78ba\u8a8d\u6240\u6709\u5f15\u7528\u7684\u8868\u548c\u8996\u5716\u90fd\u662f\u6b63\u78ba\u7684\u3002<\/p>\n<pre><code>SELECT a.column1, b.column2 \nFROM table_a a \nJOIN table_b b ON a.id = b.a_id; -- \u78ba\u4fdd table_a \u548c table_b \u90fd\u5b58\u5728\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%ad%a3%e7%a2%ba%e7%9a%84%e5%87%bd%e6%95%b8%e5%92%8c%e6%93%8d%e4%bd%9c-zkcNpsKyKx\">3. \u4f7f\u7528\u6b63\u78ba\u7684\u51fd\u6578\u548c\u64cd\u4f5c<\/h3>\n<p>\u5982\u679c\u60a8\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u51fd\u6578\uff0c\u8acb\u78ba\u4fdd\u8a72\u51fd\u6578\u9069\u7528\u65bc\u60a8\u6240\u64cd\u4f5c\u7684\u5c0d\u8c61\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u51fd\u6578\u50c5\u9069\u7528\u65bc\u7279\u5b9a\u985e\u578b\u7684\u5c0d\u8c61\uff0c\u5982\u8996\u5716\u6216\u8868\u3002<\/p>\n<pre><code>SELECT * FROM your_view; -- \u6b63\u78ba\u7528\u6cd5\nSELECT * FROM your_table; -- \u932f\u8aa4\u7528\u6cd5\uff0c\u5047\u8a2d your_view \u662f\u4e00\u500b\u8996\u5716\n<\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e6%ac%8a%e9%99%90%e5%95%8f%e9%a1%8c-zkcNpsKyKx\">4. \u6aa2\u67e5\u6b0a\u9650\u554f\u984c<\/h3>\n<p>\u6709\u6642\u5019\uff0c\u6b0a\u9650\u554f\u984c\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u78ba\u4fdd\u60a8\u5c0d\u6240\u64cd\u4f5c\u7684\u5c0d\u8c61\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\u3002\u5982\u679c\u60a8\u6c92\u6709\u6b0a\u9650\u8a2a\u554f\u67d0\u500b\u5c0d\u8c61\uff0cPostgreSQL \u53ef\u80fd\u6703\u5831\u544a\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zkcNpsKyKx\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42809 &#8211; wrong_object_type \u901a\u5e38\u662f\u7531\u65bc\u5c0d\u8c61\u985e\u578b\u4e0d\u5339\u914d\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u5c0d\u8c61\u985e\u578b\u3001\u78ba\u8a8d SQL \u67e5\u8a62\u7684\u6b63\u78ba\u6027\u3001\u4f7f\u7528\u6b63\u78ba\u7684\u51fd\u6578\u548c\u64cd\u4f5c\u4ee5\u53ca\u6aa2\u67e5\u6b0a\u9650\u554f\u984c\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u9806\u5229\uff0c\u4e26\u6e1b\u5c11\u51fa\u73fe\u6b64\u985e\u932f\u8aa4\u7684\u6a5f\u6703\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42809 &#8211; wrong_object_type\uff0c\u89e3\u6c7a\u5c0d\u8c61\u985e\u578b\u4e0d\u5339\u914d\u7684\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-179008","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179008","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=179008"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179008\/revisions"}],"predecessor-version":[{"id":179009,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179008\/revisions\/179009"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}