{"id":54936,"date":"2025-08-13T13:39:43","date_gmt":"2025-08-13T05:39:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/54936.html"},"modified":"2025-08-13T13:39:43","modified_gmt":"2025-08-13T05:39:43","slug":"postgresql%e4%b8%ad%e5%ba%8f%e5%88%97%e5%88%9b%e5%bb%ba%e5%a4%b1%e8%b4%a5%e7%9a%84%e6%8a%a5%e9%94%99%e4%b8%8e%e4%bf%ae%e5%a4%8d","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/54936.html","title":{"rendered":"PostgreSQL\u4e2d\u5e8f\u5217\u521b\u5efa\u5931\u8d25\u7684\u62a5\u9519\u4e0e\u4fee\u590d"},"content":{"rendered":"<h2>PostgreSQL\u4e2d\u5e8f\u5217\u521b\u5efa\u5931\u8d25\u7684\u62a5\u9519\u4e0e\u4fee\u590d<\/h2>\n<p>\u5728PostgreSQL\u6570\u636e\u5e93\u5f00\u53d1\u4e2d\uff0c\u5e8f\u5217\uff08Sequence\uff09\u4f5c\u4e3a\u81ea\u589e\u4e3b\u952e\u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u5176\u521b\u5efa\u5931\u8d25\u5e38\u5bfc\u81f4\u6570\u636e\u63d2\u5165\u5f02\u5e38\u3001\u4e3b\u952e\u51b2\u7a81\u7b49\u8fde\u9501\u95ee\u9898\u3002\u672c\u6587\u57fa\u4e8eCSDN\u793e\u533a\u771f\u5b9e\u6848\u4f8b\uff0c\u7cfb\u7edf\u68b3\u7406\u5e8f\u5217\u521b\u5efa\u5931\u8d25\u76848\u7c7b\u5178\u578b\u573a\u666f\uff0c\u63d0\u4f9b\u53ef\u843d\u5730\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<h3>\u4e00\u3001\u9ad8\u9891\u9519\u8bef\u573a\u666f\u4e0e\u8bca\u65ad\u77e9\u9635<\/h3>\n<h4>1.1 \u9519\u8bef\u7c7b\u578b\u5206\u7c7b<\/h4>\n<table>\n<tr>\n   \u9519\u8bef\u7c7b\u578b<br \/>\n   \u5178\u578b\u73b0\u8c61<br \/>\n   \u5173\u8054\u7ec4\u4ef6<br \/>\n   \u89e3\u51b3\u65b9\u6848\u4f18\u5148\u7ea7<br \/>\n  <\/tr>\n<tbody>\n<tr>\n<td>\u5e8f\u5217\u503c\u8d85\u51fa\u8303\u56f4<\/td>\n<td>ERROR: 2200H: sequence_generator_limit_exceeded<\/td>\n<td>\u5e8f\u5217\u5b9a\u4e49\u53c2\u6570<\/td>\n<td>\u2605\u2605\u2605\u2605\u2605<\/td>\n<\/tr>\n<tr>\n<td>\u5e8f\u5217\u5df2\u5b58\u5728\u51b2\u7a81<\/td>\n<td>ERROR: 42P07: relation \\&#8221;seq_name\\&#8221; already exists<\/td>\n<td>\u5bf9\u8c61\u547d\u540d\u89c4\u8303<\/td>\n<td>\u2605\u2605\u2605\u2605\u2606<\/td>\n<\/tr>\n<tr>\n<td>\u6743\u9650\u4e0d\u8db3<\/td>\n<td>ERROR: 42501: permission denied to create sequence<\/td>\n<td>\u7528\u6237\u89d2\u8272\u6743\u9650<\/td>\n<td>\u2605\u2605\u2605\u2605\u2606<\/td>\n<\/tr>\n<tr>\n<td>\u6a21\u677f\u6570\u636e\u5e93\u5360\u7528<\/td>\n<td>ERROR: 55006: template database \\&#8221;template1\\&#8221; is being accessed<\/td>\n<td>\u6570\u636e\u5e93\u521d\u59cb\u5316\u914d\u7f6e<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<\/tr>\n<tr>\n<td>\u5e76\u53d1\u521b\u5efa\u51b2\u7a81<\/td>\n<td>ERROR: 40P01: deadlock detected<\/td>\n<td>\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>1.2 \u8bca\u65ad\u4e09\u6b65\u6cd5<\/h4>\n<li>\u65e5\u5fd7\u5206\u6790\uff1a\u5f00\u542fPostgreSQL\u65e5\u5fd7\uff08log_statement = \\&#8217;all\\&#8217;\uff09\uff0c\u89c2\u5bdf\u5b9e\u9645\u6267\u884c\u7684SQL\u548c\u9519\u8bef\u8be6\u60c5<\/li>\n<li>\u5bf9\u8c61\u9a8c\u8bc1\uff1a\u901a\u8fc7pg_class\u7cfb\u7edf\u8868\u67e5\u8be2\u5e8f\u5217\u72b6\u6001<span class=\"token keyword\">SELECT<\/span> c<span class=\"token punctuation\">.<\/span>relname <span class=\"token keyword\">AS<\/span> sequence_name<span class=\"token punctuation\">,<\/span><br \/>\n       s<span class=\"token punctuation\">.<\/span>seqtypid::regtype <span class=\"token keyword\">AS<\/span> data_type<span class=\"token punctuation\">,<\/span><br \/>\n       s<span class=\"token punctuation\">.<\/span>seqstart <span class=\"token keyword\">AS<\/span> start_value<span class=\"token punctuation\">,<\/span><br \/>\n       s<span class=\"token punctuation\">.<\/span>seqmax <span class=\"token keyword\">AS<\/span> max_value<br \/>\n<span class=\"token keyword\">FROM<\/span> pg_class c<br \/>\n<span class=\"token keyword\">JOIN<\/span> pg_sequence s <span class=\"token keyword\">ON<\/span> c<span class=\"token punctuation\">.<\/span>oid <span class=\"token operator\">=<\/span> s<span class=\"token punctuation\">.<\/span>seqrelid<br \/>\n<span class=\"token keyword\">WHERE<\/span> c<span class=\"token punctuation\">.<\/span>relkind <span class=\"token operator\">=<\/span> <span class=\"token string\">\\&#8217;S\\&#8217;<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u6743\u9650\u68c0\u67e5\uff1a\u4f7f\u7528\\\\dn+\u547d\u4ee4\u67e5\u770b\u5f53\u524d\u7528\u6237\u5bf9schema\u7684\u521b\u5efa\u6743\u9650<\/li>\n<h3>\u4e8c\u3001\u6838\u5fc3\u89e3\u51b3\u65b9\u6848\u4e0e\u4ee3\u7801\u793a\u4f8b<\/h3>\n<h4>2.1 \u5e8f\u5217\u503c\u8d85\u51fa\u8303\u56f4\u4fee\u590d<\/h4>\n<p>\u95ee\u9898\u73b0\u8c61\uff1a\u5f53\u5e8f\u5217\u8fbe\u5230MAXVALUE\u9650\u5236\u65f6\uff0c\u63d2\u5165\u6570\u636e\u62a52200H\u9519\u8bef<\/p>\n<p><span class=\"token comment\">&#8212; \u9519\u8bef\u793a\u4f8b\uff1a\u5e8f\u5217\u8fbe\u5230\u4e0a\u9650<\/span><br \/>\n<span class=\"token keyword\">CREATE<\/span> SEQUENCE test_seq<br \/>\n  INCREMENT <span class=\"token keyword\">BY<\/span> <span class=\"token number\">1<\/span><br \/>\n  MINVALUE <span class=\"token number\">1<\/span><br \/>\n  MAXVALUE <span class=\"token number\">100<\/span><br \/>\n  <span class=\"token keyword\">START<\/span> <span class=\"token keyword\">WITH<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">&#8212; \u5f53\u5e8f\u5217\u503c\u8fbe\u5230100\u540e\uff0c\u6267\u884c\u4ee5\u4e0b\u8bed\u53e5\u4f1a\u62a5\u9519<\/span><br \/>\n<span class=\"token keyword\">SELECT<\/span> nextval<span class=\"token punctuation\">(<\/span><span class=\"token string\">\\&#8217;test_seq\\&#8217;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">&#8212; ERROR: 2200H<\/span><\/p>\n<p>\u4fee\u590d\u65b9\u6848\uff1a<\/p>\n<li>\n<p>\u91cd\u7f6e\u5e8f\u5217\u503c\uff1a<\/p>\n<p> <span class=\"token comment\">&#8212; \u4f7f\u7528setval\u91cd\u7f6e\u5e8f\u5217\uff08\u4ece1\u5f00\u59cb\u91cd\u65b0\u8ba1\u6570\uff09<\/span><br \/>\n<span class=\"token keyword\">SELECT<\/span> setval<span class=\"token punctuation\">(<\/span><span class=\"token string\">\\&#8217;test_seq\\&#8217;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">&#8212; \u6216\u6269\u5c55\u5e8f\u5217\u8303\u56f4\uff08\u9700ALTER\u6743\u9650\uff09<\/span><br \/>\n<span class=\"token keyword\">ALTER<\/span> SEQUENCE test_seq<br \/>\n  MAXVALUE <\/li>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb592\u6b21\uff0c\u70b9\u8d5e16\u6b21\uff0c\u6536\u85cf6\u6b21\u3002PostgreSQL\u5e8f\u5217\u521b\u5efa\u5931\u8d25\u95ee\u9898\u6458\u8981 \u672c\u6587\u9488\u5bf9PostgreSQL\u5e8f\u5217\u521b\u5efa\u5931\u8d25\u95ee\u9898\uff0c\u4ece\u9519\u8bef\u8bca\u65ad\u5230\u89e3\u51b3\u65b9\u6848\u8fdb\u884c\u5168\u9762\u68b3\u7406\u3002\u4e3b\u8981\u5305\u542b\uff1a \u5e38\u89c1\u9519\u8bef\u7c7b\u578b\uff1a \u5e8f\u5217\u503c\u8d85\u51fa\u8303\u56f4(2200H\u9519\u8bef) \u547d\u540d\u51b2\u7a81(42P07\u9519\u8bef) \u6743\u9650\u4e0d\u8db3(42501\u9519\u8bef) \u5e76\u53d1\u521b\u5efa\u6b7b\u9501(40P01\u9519\u8bef) \u6838\u5fc3\u89e3\u51b3\u65b9\u6848\uff1a \u8d85\u51fa\u8303\u56f4\uff1a\u4f7f\u7528ALTER SEQUENCE\u91cd\u7f6e\u6216\u8bbe\u7f6eCYCLE\u5c5e\u6027 \u547d\u540d\u51b2\u7a81\uff1a\u91c7\u7528\u6761\u4ef6\u521b\u5efa\u8bed\u53e5(DO\u5757\u68c0\u67e5) \u6743\u9650\u95ee\u9898\uff1aGRANT\u6388\u6743\u6216\u89d2\u8272\u7ee7\u627f\u65b9\u6848 \u9ad8\u7ea7\u5de5\u5177\uff1a \u5e8f\u5217\u72b6\u6001\u76d1\u63a7\u89c6\u56fe \u54a8\u8be2\u9501(pg_advisory_xact_l<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[954,5614,988,5615,100,5616],"topic":[],"class_list":{"0":"post-54936","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-server","7":"tag-postgresql","9":"tag-988","10":"tag-5615","11":"tag-100","12":"tag-5616"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PostgreSQL\u4e2d\u5e8f\u5217\u521b\u5efa\u5931\u8d25\u7684\u62a5\u9519\u4e0e\u4fee\u590d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/54936.html\" \/>\n<meta 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