{"id":179126,"date":"2024-11-08T23:13:26","date_gmt":"2024-11-08T15:13:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179126\/"},"modified":"2024-11-08T23:13:27","modified_gmt":"2024-11-08T15:13:27","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%9ahv002-fdw_dynamic_parameter_value_needed%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179126\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV002 &#8211; fdw_dynamic_parameter_value_needed\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%9ahv002-fdw_dynamic_parameter_value_needed%ef%bc%9f-TyJWlqHsvd\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV002 &#8211; fdw_dynamic_parameter_value_needed\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\u662f HV002\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\u4f7f\u7528\u52d5\u614b\u53c3\u6578\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e HV002 \u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u8655\u7406\u9019\u4e00\u554f\u984c\u3002<\/p>\n<h2 id=\"hv002-%e9%8c%af%e8%aa%a4%e7%9a%84%e8%83%8c%e6%99%af-TyJWlqHsvd\">HV002 \u932f\u8aa4\u7684\u80cc\u666f<\/h2>\n<p>HV002 \u932f\u8aa4\u4ee3\u78bc\u8868\u793a\u5728\u4f7f\u7528\u5916\u90e8\u6578\u64da\u5305\u6642\uff0cPostgreSQL \u9700\u8981\u52d5\u614b\u53c3\u6578\u7684\u503c\uff0c\u4f46\u672a\u80fd\u7372\u53d6\u5230\u9019\u4e9b\u503c\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4f7f\u7528 FDW \u9032\u884c\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u6642\uff0c\u7576\u67e5\u8a62\u4e2d\u5305\u542b\u4e86\u9700\u8981\u5728\u57f7\u884c\u6642\u624d\u80fd\u78ba\u5b9a\u7684\u53c3\u6578\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u7576\u4f60\u4f7f\u7528 PostgreSQL \u7684\u5916\u90e8\u6578\u64da\u5305\u4f86\u67e5\u8a62\u53e6\u4e00\u500b\u6578\u64da\u5eab\u7684\u6578\u64da\u6642\uff0c\u53ef\u80fd\u6703\u9700\u8981\u4e00\u4e9b\u52d5\u614b\u53c3\u6578\u4f86\u904e\u6ffe\u6216\u4fee\u6539\u67e5\u8a62\u7684\u7d50\u679c\u3002\u5982\u679c\u9019\u4e9b\u53c3\u6578\u672a\u6b63\u78ba\u8a2d\u7f6e\uff0c\u5247\u6703\u5c0e\u81f4 HV002 \u932f\u8aa4\u7684\u51fa\u73fe\u3002<\/p>\n<h2 id=\"hv002-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-TyJWlqHsvd\">HV002 \u932f\u8aa4\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u672a\u8a2d\u7f6e\u52d5\u614b\u53c3\u6578\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u9700\u8981\u52d5\u614b\u53c3\u6578\u7684\u5916\u90e8\u6578\u64da\u5305\uff0c\u4f46\u672a\u63d0\u4f9b\u9019\u4e9b\u53c3\u6578\u7684\u503c\u3002<\/li>\n<li><strong>\u53c3\u6578\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u63d0\u4f9b\u7684\u53c3\u6578\u985e\u578b\u8207\u5916\u90e8\u6578\u64da\u5305\u6240\u9700\u7684\u985e\u578b\u4e0d\u5339\u914d\uff0c\u5c0e\u81f4\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u3002<\/li>\n<li><strong>FDW \u914d\u7f6e\u554f\u984c\uff1a<\/strong>\u5916\u90e8\u6578\u64da\u5305\u7684\u914d\u7f6e\u4e0d\u6b63\u78ba\uff0c\u53ef\u80fd\u5c0e\u81f4\u7121\u6cd5\u7372\u53d6\u6240\u9700\u7684\u53c3\u6578\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-hv002-%e9%8c%af%e8%aa%a4-TyJWlqHsvd\">\u5982\u4f55\u4fee\u5fa9 HV002 \u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9 HV002 \u932f\u8aa4\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%9f%a5%e8%a9%a2%e4%b8%ad%e7%9a%84%e5%8b%95%e6%85%8b%e5%8f%83%e6%95%b8-TyJWlqHsvd\">1. \u6aa2\u67e5\u67e5\u8a62\u4e2d\u7684\u52d5\u614b\u53c3\u6578<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u4f60\u7684 SQL \u67e5\u8a62\uff0c\u78ba\u4fdd\u6240\u6709\u9700\u8981\u7684\u52d5\u614b\u53c3\u6578\u90fd\u5df2\u6b63\u78ba\u8a2d\u7f6e\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM foreign_table WHERE column_name = $1;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c$1 \u662f\u4e00\u500b\u52d5\u614b\u53c3\u6578\uff0c\u78ba\u4fdd\u5728\u57f7\u884c\u67e5\u8a62\u6642\u63d0\u4f9b\u4e86\u9019\u500b\u53c3\u6578\u7684\u503c\u3002<\/p>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e5%8f%83%e6%95%b8%e9%a1%9e%e5%9e%8b-TyJWlqHsvd\">2. \u78ba\u8a8d\u53c3\u6578\u985e\u578b<\/h3>\n<p>\u78ba\u4fdd\u63d0\u4f9b\u7684\u53c3\u6578\u985e\u578b\u8207\u5916\u90e8\u6578\u64da\u5305\u6240\u9700\u7684\u985e\u578b\u76f8\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5916\u90e8\u6578\u64da\u5305\u671f\u671b\u4e00\u500b\u6574\u6578\u985e\u578b\u7684\u53c3\u6578\uff0c\u800c\u4f60\u63d0\u4f9b\u4e86\u4e00\u500b\u5b57\u7b26\u4e32\uff0c\u5247\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u53c3\u6578\u985e\u578b\uff1a<\/p>\n<pre><code>SELECT pg_typeof($1);<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5-fdw-%e9%85%8d%e7%bd%ae-TyJWlqHsvd\">3. \u6aa2\u67e5 FDW \u914d\u7f6e<\/h3>\n<p>\u5982\u679c\u4ee5\u4e0a\u5169\u6b65\u90fd\u6c92\u6709\u89e3\u6c7a\u554f\u984c\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u5916\u90e8\u6578\u64da\u5305\u7684\u914d\u7f6e\u3002\u78ba\u4fdd\u6240\u6709\u5fc5\u8981\u7684\u9023\u63a5\u4fe1\u606f\u548c\u53c3\u6578\u90fd\u5df2\u6b63\u78ba\u8a2d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b FDW \u7684\u914d\u7f6e\uff1a<\/p>\n<pre><code>SELECT * FROM pg_foreign_data_wrapper;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TyJWlqHsvd\">\u7e3d\u7d50<\/h2>\n<p>HV002 \u932f\u8aa4\u4ee3\u78bc\u901a\u5e38\u8207\u5916\u90e8\u6578\u64da\u5305\u7684\u52d5\u614b\u53c3\u6578\u6709\u95dc\uff0c\u901a\u904e\u6aa2\u67e5\u67e5\u8a62\u4e2d\u7684\u53c3\u6578\u3001\u78ba\u8a8d\u53c3\u6578\u985e\u578b\u4ee5\u53ca\u6aa2\u67e5 FDW \u914d\u7f6e\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u4f7f\u7528 PostgreSQL \u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u7406\u89e3\u9019\u4e9b\u932f\u8aa4\u7684\u6839\u672c\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/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\u61c9\u7528\u90e8\u7f72\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc HV002 \u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a fdw_dynamic_parameter_value_needed \u554f\u984c\uff0c\u63d0\u5347\u8cc7\u6599\u5eab\u6027\u80fd\u8207\u7a69\u5b9a\u6027\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-179126","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179126","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=179126"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179126\/revisions"}],"predecessor-version":[{"id":179127,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179126\/revisions\/179127"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}