{"id":179150,"date":"2024-11-08T23:25:19","date_gmt":"2024-11-08T15:25:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179150\/"},"modified":"2024-11-08T23:25:20","modified_gmt":"2024-11-08T15:25:20","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%9ahv00k-fdw_reply_handle%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179150\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV00K &#8211; fdw_reply_handle\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%9ahv00k-fdw_reply_handle%ef%bc%9f-VnUeHFvRPl\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV00K &#8211; fdw_reply_handle\uff1f<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f HV00K\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\u8655\u7406\u9060\u7a0b\u6578\u64da\u6e90\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e HV00K \u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"hv00k-%e9%8c%af%e8%aa%a4%e7%9a%84%e8%83%8c%e6%99%af-VnUeHFvRPl\">HV00K \u932f\u8aa4\u7684\u80cc\u666f<\/h2>\n<p>HV00K \u932f\u8aa4\u4ee3\u78bc\u901a\u5e38\u8868\u793a\u5728\u4f7f\u7528\u5916\u90e8\u6578\u64da\u5305\u6642\u51fa\u73fe\u4e86\u554f\u984c\u3002FDW \u5141\u8a31 PostgreSQL \u7528\u6236\u8a2a\u554f\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71\u7684\u6578\u64da\uff0c\u9019\u5728\u6578\u64da\u6574\u5408\u548c\u591a\u6578\u64da\u6e90\u67e5\u8a62\u4e2d\u975e\u5e38\u6709\u7528\u3002\u7136\u800c\uff0c\u7576 FDW \u7121\u6cd5\u6b63\u78ba\u8655\u7406\u8acb\u6c42\u6642\uff0c\u5c31\u6703\u51fa\u73fe HV00K \u932f\u8aa4\u3002<\/p>\n<h2 id=\"hv00k-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-VnUeHFvRPl\">HV00K \u932f\u8aa4\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u7db2\u7d61\u9023\u63a5\u554f\u984c\uff1a<\/strong>\u5982\u679c PostgreSQL \u4f3a\u670d\u5668\u7121\u6cd5\u9023\u63a5\u5230\u5916\u90e8\u6578\u64da\u6e90\uff0c\u5247\u53ef\u80fd\u6703\u5c0e\u81f4 HV00K \u932f\u8aa4\u3002\u9019\u53ef\u80fd\u662f\u7531\u65bc\u9632\u706b\u7246\u8a2d\u7f6e\u3001\u7db2\u7d61\u4e2d\u65b7\u6216\u5916\u90e8\u6578\u64da\u6e90\u7684\u670d\u52d9\u5668\u6545\u969c\u3002<\/li>\n<li><strong>\u914d\u7f6e\u932f\u8aa4\uff1a<\/strong>FDW \u7684\u914d\u7f6e\u4e0d\u6b63\u78ba\u4e5f\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u7684\u7528\u6236\u540d\u6216\u5bc6\u78bc\u932f\u8aa4\uff0c\u6216\u8005\u7f3a\u5c11\u5fc5\u8981\u7684\u53c3\u6578\u3002<\/li>\n<li><strong>\u7248\u672c\u4e0d\u517c\u5bb9\uff1a<\/strong>\u4f7f\u7528\u7684 PostgreSQL \u7248\u672c\u8207 FDW \u7684\u7248\u672c\u4e0d\u517c\u5bb9\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u529f\u80fd\u7121\u6cd5\u6b63\u5e38\u904b\u884c\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u7576\u5f9e\u5916\u90e8\u6578\u64da\u6e90\u63d0\u53d6\u6578\u64da\u6642\uff0c\u5982\u679c\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff0c\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-hv00k-%e9%8c%af%e8%aa%a4-VnUeHFvRPl\">\u5982\u4f55\u4fee\u5fa9 HV00K \u932f\u8aa4<\/h2>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%b6%b2%e7%b5%a1%e9%80%a3%e6%8e%a5-VnUeHFvRPl\">1. \u6aa2\u67e5\u7db2\u7d61\u9023\u63a5<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd PostgreSQL \u4f3a\u670d\u5668\u80fd\u5920\u9023\u63a5\u5230\u5916\u90e8\u6578\u64da\u6e90\u3002\u53ef\u4ee5\u4f7f\u7528 ping \u547d\u4ee4\u6aa2\u67e5\u9023\u63a5\u6027\uff0c\u6216\u4f7f\u7528 telnet \u6e2c\u8a66\u7279\u5b9a\u7aef\u53e3\u7684\u53ef\u9054\u6027\u3002<\/p>\n<pre><code>ping external_data_source_ip\ntelnet external_data_source_ip port_number\n<\/code><\/pre>\n<h3 id=\"2-%e9%a9%97%e8%ad%89-fdw-%e9%85%8d%e7%bd%ae-VnUeHFvRPl\">2. \u9a57\u8b49 FDW \u914d\u7f6e<\/h3>\n<p>\u6aa2\u67e5 FDW \u7684\u914d\u7f6e\u662f\u5426\u6b63\u78ba\u3002\u78ba\u4fdd\u6240\u6709\u5fc5\u8981\u7684\u53c3\u6578\u90fd\u5df2\u6b63\u78ba\u8a2d\u7f6e\uff0c\u5305\u62ec\u7528\u6236\u540d\u3001\u5bc6\u78bc\u548c\u9023\u63a5\u5b57\u7b26\u4e32\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5 FDW \u7684\u8a2d\u7f6e\uff1a<\/p>\n<pre><code>SELECT * FROM pg_foreign_data_wrapper;\nSELECT * FROM pg_user_mappings;\n<\/code><\/pre>\n<h3 id=\"3-%e6%9b%b4%e6%96%b0-postgresql-%e5%92%8c-fdw-VnUeHFvRPl\">3. \u66f4\u65b0 PostgreSQL \u548c FDW<\/h3>\n<p>\u78ba\u4fdd\u4f7f\u7528\u7684 PostgreSQL \u548c FDW \u7248\u672c\u662f\u6700\u65b0\u7684\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u7248\u672c\uff1a<\/p>\n<pre><code>SELECT version();\n<\/code><\/pre>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%aa%a2%e6%9f%a5-VnUeHFvRPl\">4. \u6578\u64da\u985e\u578b\u6aa2\u67e5<\/h3>\n<p>\u6aa2\u67e5\u5f9e\u5916\u90e8\u6578\u64da\u6e90\u63d0\u53d6\u7684\u6578\u64da\u985e\u578b\uff0c\u78ba\u4fdd\u5b83\u5011\u8207 PostgreSQL \u4e2d\u7684\u6578\u64da\u985e\u578b\u76f8\u5339\u914d\u3002\u5982\u679c\u5b58\u5728\u4e0d\u5339\u914d\u7684\u60c5\u6cc1\uff0c\u5247\u9700\u8981\u9032\u884c\u76f8\u61c9\u7684\u8f49\u63db\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VnUeHFvRPl\">\u7e3d\u7d50<\/h2>\n<p>HV00K \u932f\u8aa4\u4ee3\u78bc\u901a\u5e38\u8207\u5916\u90e8\u6578\u64da\u5305\u7684\u914d\u7f6e\u548c\u9023\u63a5\u554f\u984c\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5\u7db2\u7d61\u9023\u63a5\u3001\u9a57\u8b49 FDW \u914d\u7f6e\u3001\u66f4\u65b0\u7248\u672c\u4ee5\u53ca\u6aa2\u67e5\u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u63d0\u4f9b\u7a69\u5b9a\u7684\u74b0\u5883\uff0c\u5f9e\u800c\u6e1b\u5c11\u6b64\u985e\u554f\u984c\u7684\u767c\u751f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc HV00K &#8211; fdw_reply_handle\uff0c\u89e3\u6c7a\u5916\u90e8\u6578\u64da\u5305\u88dd\u5668\u7684\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-179150","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179150","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=179150"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179150\/revisions"}],"predecessor-version":[{"id":179151,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179150\/revisions\/179151"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}