{"id":20753,"date":"2024-01-02T05:22:20","date_gmt":"2024-01-02T05:22:20","guid":{"rendered":"https:\/\/server.hk\/blog\/20753\/"},"modified":"2024-11-14T10:39:19","modified_gmt":"2024-11-14T02:39:19","slug":"postgresql-command-rollback-prepared","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/20753\/","title":{"rendered":"PostgreSQL \u547d\u4ee4\uff1aROLLBACK PREPARED"},"content":{"rendered":"<h1 id=\"postgresql-command-rollback-prepared-yWMesjOkeX\">PostgreSQL \u547d\u4ee4\uff1aROLLBACK PREPARED<\/h1>\n<p>PostgreSQL \u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u5f0f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u5404\u7a2e\u529f\u80fd\u548c\u7279\u6027\u3002\u5728 PostgreSQL \u4e2d\uff0c\u5176\u4e2d\u4e00\u500b\u91cd\u8981\u7684\u547d\u4ee4\u662f <code>ROLLBACK PREPARED<\/code>\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u547d\u4ee4\u7684\u529f\u80fd\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u4f7f\u7528\u5b83\u3002<\/p>\n<h2 id=\"understanding-rollback-prepared-yWMesjOkeX\">\u7406\u89e3 ROLLBACK PREPARED<\/h2>\n<p><code>ROLLBACK PREPARED<\/code> \u547d\u4ee4\u7528\u65bc\u53d6\u6d88\u70ba\u5169\u968e\u6bb5\u63d0\u4ea4\u800c\u6e96\u5099\u7684\u4ea4\u6613\u3002\u5169\u968e\u6bb5\u63d0\u4ea4\u662f\u4e00\u7a2e\u5354\u8b70\uff0c\u7528\u65bc\u78ba\u4fdd\u53c3\u8207\u7684\u6240\u6709\u5206\u4f48\u5f0f\u4ea4\u6613\u4e2d\u7684\u6578\u64da\u5eab\u8981\u9ebc\u5168\u90e8\u63d0\u4ea4\uff0c\u8981\u9ebc\u5168\u90e8\u56de\u6efe\u3002<\/p>\n<p>\u7576\u4e00\u500b\u4ea4\u6613\u88ab\u6e96\u5099\u9032\u884c\u5169\u968e\u6bb5\u63d0\u4ea4\u6642\uff0c\u610f\u5473\u8457\u8a72\u4ea4\u6613\u4e2d\u6240\u505a\u7684\u66f4\u6539\u9084\u4e0d\u662f\u6c38\u4e45\u7684\u3002<code>ROLLBACK PREPARED<\/code> \u547d\u4ee4\u5141\u8a31\u60a8\u53d6\u6d88\u6e96\u5099\u7684\u4ea4\u6613\u4e26\u56de\u6efe\u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u3002<\/p>\n<h2 id=\"using-rollback-prepared-yWMesjOkeX\">\u4f7f\u7528 ROLLBACK PREPARED<\/h2>\n<p>\u8981\u4f7f\u7528 <code>ROLLBACK PREPARED<\/code> \u547d\u4ee4\uff0c\u60a8\u9700\u8981\u77e5\u9053\u6e96\u5099\u7684\u4ea4\u6613\u7684\u4ea4\u6613 ID\u3002\u60a8\u53ef\u4ee5\u901a\u904e\u67e5\u8a62 <code>pg_prepared_xacts<\/code> \u7cfb\u7d71\u76ee\u9304\u8868\u627e\u5230\u4ea4\u6613 ID\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528 <code>ROLLBACK PREPARED<\/code> \u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>ROLLBACK PREPARED 'transaction_id';\r\n<\/code><\/pre>\n<p>\u5c07 <code>'transaction_id'<\/code> \u66ff\u63db\u70ba\u60a8\u60f3\u8981\u56de\u6efe\u7684\u6e96\u5099\u4ea4\u6613\u7684\u5be6\u969b\u4ea4\u6613 ID\u3002<\/p>\n<h2 id=\"benefits-of-rollback-prepared-yWMesjOkeX\">ROLLBACK PREPARED \u7684\u597d\u8655<\/h2>\n<p><code>ROLLBACK PREPARED<\/code> \u547d\u4ee4\u63d0\u4f9b\u4e86\u5e7e\u500b\u597d\u8655\uff1a<\/p>\n<ul>\n<li><strong>\u4ea4\u6613\u5b8c\u6574\u6027\uff1a<\/strong> \u78ba\u4fdd\u5206\u4f48\u5f0f\u4ea4\u6613\u4e2d\u53c3\u8207\u7684\u6240\u6709\u6578\u64da\u5eab\u901a\u904e\u5168\u90e8\u63d0\u4ea4\u6216\u5168\u90e8\u56de\u6efe\u4ea4\u6613\u4f86\u7dad\u8b77\u4ea4\u6613\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong> \u901a\u904e\u5141\u8a31\u60a8\u53d6\u6d88\u6e96\u5099\u4ea4\u6613\u4e2d\u6240\u505a\u7684\u66f4\u6539\uff0c\u6709\u52a9\u65bc\u7dad\u8b77\u6578\u64da\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u932f\u8aa4\u6062\u5fa9\uff1a<\/strong> \u63d0\u4f9b\u5f9e\u767c\u751f\u5728\u5206\u4f48\u5f0f\u4ea4\u6613\u4e2d\u7684\u932f\u8aa4\u6216\u5931\u6557\u4e2d\u6062\u5fa9\u7684\u6a5f\u5236\u3002<\/li>\n<\/ul>\n<h2 id=\"conclusion-yWMesjOkeX\">\u7d50\u8ad6<\/h2>\n<p>\u5728 PostgreSQL \u4e2d\uff0c<code>ROLLBACK PREPARED<\/code> \u547d\u4ee4\u662f\u5728\u5206\u4f48\u5f0f\u74b0\u5883\u4e2d\u53d6\u6d88\u6e96\u5099\u4ea4\u6613\u7684\u4e00\u500b\u5f37\u5927\u5de5\u5177\u3002\u5b83\u6709\u52a9\u65bc\u7dad\u8b77\u4ea4\u6613\u5b8c\u6574\u6027\u3001\u6578\u64da\u4e00\u81f4\u6027\u4e26\u63d0\u4f9b\u932f\u8aa4\u6062\u5fa9\u529f\u80fd\u3002\u901a\u904e\u7406\u89e3\u4e26\u6709\u6548\u4f7f\u7528\u6b64\u547d\u4ee4\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u53ef\u9760\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"summary-yWMesjOkeX\">\u6458\u8981<\/h2>\n<p>\u7e3d\u800c\u8a00\u4e4b\uff0c\u5728\u5206\u4f48\u5f0f\u74b0\u5883\u4e2d\uff0cPostgreSQL \u4e2d\u7684 <code>ROLLBACK PREPARED<\/code> \u547d\u4ee4\u5c0d\u65bc\u53d6\u6d88\u6e96\u5099\u4ea4\u6613\u81f3\u95dc\u91cd\u8981\u3002\u5b83\u6709\u52a9\u65bc\u7dad\u8b77\u4ea4\u6613\u5b8c\u6574\u6027\u3001\u6578\u64da\u4e00\u81f4\u6027\u4e26\u63d0\u4f9b\u932f\u8aa4\u6062\u5fa9\u529f\u80fd\u3002\u5982\u6b32\u6df1\u5165\u4e86\u89e3 PostgreSQL \u53ca\u5176\u529f\u80fd\uff0c\u8acb\u8003\u616e\u63a2\u7d22 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS\u8a17\u7ba1<\/a> \u63d0\u4f9b\u53ef\u9760\u3001\u9ad8\u6548\u7684VPS\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PostgreSQL \u547d\u4ee4\uff1aRO&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-20753","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20753","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=20753"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20753\/revisions"}],"predecessor-version":[{"id":24360,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20753\/revisions\/24360"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=20753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=20753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=20753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}