{"id":178838,"date":"2024-11-08T21:19:18","date_gmt":"2024-11-08T13:19:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178838\/"},"modified":"2024-11-08T21:19:19","modified_gmt":"2024-11-08T13:19:19","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a25006-read_only_sql_transaction%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178838\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a25006 &#8211; read_only_sql_transaction\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a25006-read_only_sql_transaction-kZtKTtrmld\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a25006 &#8211; read_only_sql_transaction<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\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\u78bc25006\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u986f\u793a\u70ba\u201cread_only_sql_transaction\u201d\u3002\u9019\u500b\u932f\u8aa4\u7684\u51fa\u73fe\u901a\u5e38\u610f\u5473\u8457\u7576\u524d\u7684\u4e8b\u52d9\u8655\u65bc\u53ea\u8b80\u6a21\u5f0f\uff0c\u7121\u6cd5\u57f7\u884c\u5beb\u5165\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-kZtKTtrmld\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>PostgreSQL\u7684\u201cread_only_sql_transaction\u201d\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u4e8b\u52d9\u6a21\u5f0f\u8a2d\u5b9a\u70ba\u53ea\u8b80\uff1a<\/strong>\u7576\u4e00\u500b\u4e8b\u52d9\u88ab\u660e\u78ba\u8a2d\u7f6e\u70ba\u53ea\u8b80\u6642\uff0c\u6240\u6709\u7684\u5beb\u5165\u64cd\u4f5c\u90fd\u6703\u88ab\u62d2\u7d55\u3002<\/li>\n<li><strong>\u8cc7\u6599\u5eab\u8a2d\u5b9a\u70ba\u53ea\u8b80\uff1a<\/strong>\u5982\u679c\u6574\u500b\u8cc7\u6599\u5eab\u88ab\u8a2d\u7f6e\u70ba\u53ea\u8b80\u6a21\u5f0f\uff0c\u5247\u6240\u6709\u7684\u5beb\u5165\u8acb\u6c42\u90fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e86\u67d0\u4e9b\u7279\u5b9a\u7684\u9023\u63a5\u53c3\u6578\uff1a<\/strong>\u67d0\u4e9b\u9023\u63a5\u53c3\u6578\u53ef\u80fd\u6703\u5c0e\u81f4\u4e8b\u52d9\u81ea\u52d5\u9032\u5165\u53ea\u8b80\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%aa%a2%e6%9f%a5%e4%ba%8b%e5%8b%99%e7%8b%80%e6%85%8b-kZtKTtrmld\">\u5982\u4f55\u6aa2\u67e5\u4e8b\u52d9\u72c0\u614b<\/h2>\n<p>\u5728\u89e3\u6c7a\u6b64\u932f\u8aa4\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u7576\u524d\u4e8b\u52d9\u7684\u72c0\u614b\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u7576\u524d\u4e8b\u52d9\u7684\u5c6c\u6027\uff1a<\/p>\n<pre><code>SELECT txid_current(), state FROM pg_stat_activity WHERE pid = pg_backend_pid();<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7576\u524d\u4e8b\u52d9\u7684ID\u548c\u72c0\u614b\u3002\u5982\u679c\u72c0\u614b\u986f\u793a\u70ba\u201cidle in transaction\u201d\uff0c\u5247\u53ef\u80fd\u9700\u8981\u9032\u4e00\u6b65\u6aa2\u67e5\u4e8b\u52d9\u7684\u8a2d\u7f6e\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-kZtKTtrmld\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u91dd\u5c0d\u932f\u8aa4\u4ee3\u78bc25006\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u53ef\u80fd\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e4%b8%a6%e4%bf%ae%e6%94%b9%e4%ba%8b%e5%8b%99%e8%a8%ad%e7%bd%ae-kZtKTtrmld\">1. \u6aa2\u67e5\u4e26\u4fee\u6539\u4e8b\u52d9\u8a2d\u7f6e<\/h3>\n<p>\u5982\u679c\u4e8b\u52d9\u88ab\u8a2d\u7f6e\u70ba\u53ea\u8b80\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0bSQL\u547d\u4ee4\u5c07\u5176\u6539\u70ba\u53ef\u5beb\uff1a<\/p>\n<pre><code>SET TRANSACTION READ WRITE;<\/code><\/pre>\n<p>\u9019\u5c07\u5141\u8a31\u5728\u7576\u524d\u4e8b\u52d9\u4e2d\u57f7\u884c\u5beb\u5165\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e8%b3%87%e6%96%99%e5%ba%ab%e8%a8%ad%e5%ae%9a-kZtKTtrmld\">2. \u6aa2\u67e5\u8cc7\u6599\u5eab\u8a2d\u5b9a<\/h3>\n<p>\u5982\u679c\u6574\u500b\u8cc7\u6599\u5eab\u88ab\u8a2d\u7f6e\u70ba\u53ea\u8b80\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u8cc7\u6599\u5eab\u7684\u5c6c\u6027\uff1a<\/p>\n<pre><code>SELECT datname, datallowconn, datistemplate, datacl FROM pg_database WHERE datname = 'your_database_name';<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u8cc7\u6599\u5eab\u7684\u5c6c\u6027\u70ba\u53ea\u8b80\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c07\u5176\u8a2d\u7f6e\u70ba\u53ef\u5beb\uff1a<\/p>\n<pre><code>ALTER DATABASE your_database_name WITH READ WRITE;<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e9%80%a3%e6%8e%a5%e5%8f%83%e6%95%b8-kZtKTtrmld\">3. \u6aa2\u67e5\u9023\u63a5\u53c3\u6578<\/h3>\n<p>\u67d0\u4e9b\u9023\u63a5\u53c3\u6578\u53ef\u80fd\u6703\u5c0e\u81f4\u4e8b\u52d9\u9032\u5165\u53ea\u8b80\u6a21\u5f0f\u3002\u6aa2\u67e5\u61c9\u7528\u7a0b\u5e8f\u7684\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u78ba\u4fdd\u6c92\u6709\u4f7f\u7528\u201creadonly=true\u201d\u6216\u985e\u4f3c\u7684\u53c3\u6578\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-kZtKTtrmld\">\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u60a8\u5728\u57f7\u884c\u63d2\u5165\u64cd\u4f5c\u6642\u9047\u5230\u6b64\u932f\u8aa4\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u4fee\u5fa9\uff1a<\/p>\n<pre><code>BEGIN;  -- \u958b\u59cb\u4e8b\u52d9\nSET TRANSACTION READ WRITE;  -- \u8a2d\u7f6e\u70ba\u53ef\u5beb\nINSERT INTO your_table (column1, column2) VALUES ('value1', 'value2');  -- \u57f7\u884c\u63d2\u5165\u64cd\u4f5c\nCOMMIT;  -- \u63d0\u4ea4\u4e8b\u52d9\n<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u4e8b\u52d9\u4e2d\u57f7\u884c\u7684\u64cd\u4f5c\u662f\u53ef\u5beb\u7684\uff0c\u5f9e\u800c\u907f\u514d\u932f\u8aa4\u4ee3\u78bc25006\u7684\u51fa\u73fe\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-kZtKTtrmld\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc25006 &#8211; read_only_sql_transaction\u901a\u5e38\u662f\u7531\u65bc\u4e8b\u52d9\u6216\u8cc7\u6599\u5eab\u7684\u53ea\u8b80\u8a2d\u7f6e\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u4e8b\u52d9\u72c0\u614b\u3001\u4fee\u6539\u4e8b\u52d9\u8a2d\u7f6e\u3001\u6aa2\u67e5\u8cc7\u6599\u5eab\u5c6c\u6027\u4ee5\u53ca\u9023\u63a5\u53c3\u6578\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc25006\uff1aread_only_sql_transaction\uff0c\u4e26\u6062\u5fa9\u6578\u64da\u5eab\u7684\u6b63\u5e38\u64cd\u4f5c\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-178838","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178838","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=178838"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178838\/revisions"}],"predecessor-version":[{"id":178839,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178838\/revisions\/178839"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}