{"id":179122,"date":"2024-11-08T23:11:21","date_gmt":"2024-11-08T15:11:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179122\/"},"modified":"2024-11-08T23:11:22","modified_gmt":"2024-11-08T15:11:22","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%9ahv000-fdw_error%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179122\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV000 &#8211; fdw_error\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%9ahv000-fdw_error-ceYNuiibOn\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV000 &#8211; fdw_error<\/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 HV000 &#8211; fdw_error\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u5916\u90e8\u6578\u64da\u5305\uff08Foreign Data Wrapper, FDW\uff09\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u5617\u8a66\u5f9e\u5916\u90e8\u6578\u64da\u6e90\u8b80\u53d6\u6578\u64da\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e HV000 \u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-foreign-data-wrapper-fdw%ef%bc%9f-ceYNuiibOn\">\u4ec0\u9ebc\u662f Foreign Data Wrapper (FDW)\uff1f<\/h2>\n<p>Foreign Data Wrapper \u662f PostgreSQL \u7684\u4e00\u500b\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u5f9e\u5916\u90e8\u6578\u64da\u6e90\uff08\u5982\u5176\u4ed6\u6578\u64da\u5eab\u6216\u6587\u4ef6\uff09\u67e5\u8a62\u6578\u64da\u3002FDW \u63d0\u4f9b\u4e86\u4e00\u7a2e\u7d71\u4e00\u7684\u65b9\u5f0f\u4f86\u8a2a\u554f\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u6574\u5408\u591a\u500b\u6578\u64da\u6e90\u7684\u61c9\u7528\u7a0b\u5e8f\u4f86\u8aaa\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"hv000-fdw_error-%e7%9a%84%e5%8e%9f%e5%9b%a0-ceYNuiibOn\">HV000 &#8211; fdw_error \u7684\u539f\u56e0<\/h2>\n<p>HV000 &#8211; fdw_error \u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728\u4f7f\u7528 FDW \u6642\u51fa\u73fe\u4e86\u554f\u984c\u3002\u9019\u53ef\u80fd\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u9023\u63a5\u554f\u984c\uff1a<\/strong>\u5982\u679c PostgreSQL \u7121\u6cd5\u9023\u63a5\u5230\u5916\u90e8\u6578\u64da\u6e90\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u9019\u53ef\u80fd\u662f\u7531\u65bc\u7db2\u7d61\u554f\u984c\u3001\u932f\u8aa4\u7684\u9023\u63a5\u5b57\u7b26\u4e32\u6216\u5916\u90e8\u6578\u64da\u6e90\u7684\u670d\u52d9\u5668\u672a\u555f\u52d5\u3002<\/li>\n<li><strong>\u6b0a\u9650\u554f\u984c\uff1a<\/strong>\u7528\u6236\u53ef\u80fd\u6c92\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u8a2a\u554f\u5916\u90e8\u6578\u64da\u6e90\u3002\u78ba\u4fdd\u7528\u6236\u64c1\u6709\u6b63\u78ba\u7684\u8a2a\u554f\u6b0a\u9650\u3002<\/li>\n<li><strong>\u914d\u7f6e\u932f\u8aa4\uff1a<\/strong>FDW \u7684\u914d\u7f6e\u53ef\u80fd\u4e0d\u6b63\u78ba\uff0c\u4f8b\u5982\u7f3a\u5c11\u5fc5\u8981\u7684\u53c3\u6578\u6216\u932f\u8aa4\u7684\u8a2d\u7f6e\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u5728\u67e5\u8a62\u5916\u90e8\u6578\u64da\u6642\uff0c\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-hv000-fdw_error-ceYNuiibOn\">\u5982\u4f55\u4fee\u5fa9 HV000 &#8211; fdw_error<\/h2>\n<p>\u4fee\u5fa9 HV000 \u932f\u8aa4\u7684\u5177\u9ad4\u6b65\u9a5f\u53d6\u6c7a\u65bc\u932f\u8aa4\u7684\u6839\u672c\u539f\u56e0\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%e9%80%a3%e6%8e%a5%e8%a8%ad%e7%bd%ae-ceYNuiibOn\">1. \u6aa2\u67e5\u9023\u63a5\u8a2d\u7f6e<\/h3>\n<pre><code>CREATE SERVER my_server FOREIGN DATA WRAPPER my_fdw\n    OPTIONS (host '\u5916\u90e8\u6578\u64da\u6e90\u7684IP', port '\u7aef\u53e3\u865f', dbname '\u6578\u64da\u5eab\u540d');<\/code><\/pre>\n<p>\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684\u4e3b\u6a5f\u540d\u3001\u7aef\u53e3\u548c\u6578\u64da\u5eab\u540d\u7a31\u90fd\u662f\u6b63\u78ba\u7684\u3002\u53ef\u4ee5\u4f7f\u7528 ping \u547d\u4ee4\u6aa2\u67e5\u7db2\u7d61\u9023\u63a5\u3002<\/p>\n<h3 id=\"2-%e9%a9%97%e8%ad%89%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-ceYNuiibOn\">2. \u9a57\u8b49\u7528\u6236\u6b0a\u9650<\/h3>\n<p>\u6aa2\u67e5\u7528\u6236\u662f\u5426\u64c1\u6709\u8a2a\u554f\u5916\u90e8\u6578\u64da\u6e90\u7684\u6b0a\u9650\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u7528\u6236\u6b0a\u9650\uff1a<\/p>\n<pre><code>SELECT * FROM information_schema.role_table_grants\nWHERE grantee = '\u7528\u6236\u540d';<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5-fdw-%e9%85%8d%e7%bd%ae-ceYNuiibOn\">3. \u6aa2\u67e5 FDW \u914d\u7f6e<\/h3>\n<p>\u78ba\u4fdd FDW \u7684\u914d\u7f6e\u6b63\u78ba\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u7684 FDW \u8a2d\u7f6e\uff1a<\/p>\n<pre><code>SELECT * FROM pg_foreign_data_wrapper;<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u914d\u7f6e\u4e0d\u6b63\u78ba\uff0c\u8acb\u91cd\u65b0\u914d\u7f6e FDW\u3002<\/p>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%aa%a2%e6%9f%a5-ceYNuiibOn\">4. \u6578\u64da\u985e\u578b\u6aa2\u67e5<\/h3>\n<p>\u5728\u67e5\u8a62\u5916\u90e8\u6578\u64da\u6642\uff0c\u78ba\u4fdd\u6578\u64da\u985e\u578b\u5339\u914d\u3002\u5982\u679c\u5916\u90e8\u6578\u64da\u6e90\u7684\u6578\u64da\u985e\u578b\u8207 PostgreSQL \u4e2d\u7684\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff0c\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528 CAST \u51fd\u6578\u4f86\u9032\u884c\u985e\u578b\u8f49\u63db\uff1a<\/p>\n<pre><code>SELECT CAST(column_name AS desired_type) FROM foreign_table;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ceYNuiibOn\">\u7e3d\u7d50<\/h2>\n<p>HV000 &#8211; fdw_error \u662f\u4e00\u500b\u5e38\u898b\u7684 PostgreSQL \u932f\u8aa4\uff0c\u901a\u5e38\u8207\u5916\u90e8\u6578\u64da\u5305\u7684\u914d\u7f6e\u6216\u9023\u63a5\u554f\u984c\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5\u9023\u63a5\u8a2d\u7f6e\u3001\u7528\u6236\u6b0a\u9650\u3001FDW \u914d\u7f6e\u548c\u6578\u64da\u985e\u578b\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc HV000 &#8211; fdw_error\uff0c\u89e3\u6c7a\u5916\u90e8\u6578\u64da\u5305\u88dd\u5668\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\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-179122","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179122","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=179122"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179122\/revisions"}],"predecessor-version":[{"id":179123,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179122\/revisions\/179123"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179122"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179122"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}