{"id":178720,"date":"2024-11-08T20:20:29","date_gmt":"2024-11-08T12:20:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178720\/"},"modified":"2024-11-08T20:20:30","modified_gmt":"2024-11-08T12:20:30","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%9a22013-invalid_preceding_or_following_size%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178720\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a22013 &#8211; invalid_preceding_or_following_size\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%9a22013-invalid_preceding_or_following_size-hVtDdIxOwh\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a22013 &#8211; invalid_preceding_or_following_size<\/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\u78bc22013\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8868\u793a\u201cinvalid_preceding_or_following_size\u201d\u3002\u9019\u500b\u932f\u8aa4\u4e3b\u8981\u51fa\u73fe\u5728\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u6642\uff0c\u7279\u5225\u662f\u5728\u5b9a\u7fa9\u7a97\u53e3\u7684\u7bc4\u570d\u6642\u51fa\u73fe\u554f\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\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%e5%88%86%e6%9e%90-hVtDdIxOwh\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>PostgreSQL\u7684\u7a97\u53e3\u51fd\u6578\u5141\u8a31\u7528\u6236\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u8907\u96dc\u7684\u8a08\u7b97\uff0c\u9019\u4e9b\u8a08\u7b97\u53ef\u4ee5\u57fa\u65bc\u67e5\u8a62\u7d50\u679c\u7684\u67d0\u4e9b\u884c\u9032\u884c\u3002\u7136\u800c\uff0c\u7576\u7528\u6236\u5728\u5b9a\u7fa9\u7a97\u53e3\u7684\u7bc4\u570d\u6642\uff0c\u53ef\u80fd\u6703\u4e0d\u5c0f\u5fc3\u8a2d\u7f6e\u4e0d\u6b63\u78ba\u7684\u53c3\u6578\uff0c\u5c0e\u81f422013\u932f\u8aa4\u7684\u51fa\u73fe\u3002<\/p>\n<ul>\n<li><strong>\u4e0d\u6b63\u78ba\u7684\u524d\u5f8c\u884c\u6578\uff1a<\/strong>\u7576\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u6642\uff0c\u524d\u5f8c\u884c\u6578\u7684\u8a2d\u7f6e\u5fc5\u9808\u662f\u975e\u8ca0\u6574\u6578\u3002\u5982\u679c\u8a2d\u7f6e\u4e86\u8ca0\u6578\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e0d\u5408\u908f\u8f2f\u7684\u7bc4\u570d\uff1a<\/strong>\u4f8b\u5982\uff0c\u7576\u6307\u5b9a\u7684\u7bc4\u570d\u8d85\u904e\u4e86\u53ef\u7528\u7684\u884c\u6578\u6642\uff0c\u4e5f\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u985e\u578b\u7684\u4e0d\u5339\u914d\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u7684\u767c\u751f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4-hVtDdIxOwh\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc22013\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u6aa2\u67e5\u548c\u4fee\u6539SQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u6b65\u9a5f\u548c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%e7%9a%84%e5%ae%9a%e7%be%a9-hVtDdIxOwh\">1. \u6aa2\u67e5\u7a97\u53e3\u51fd\u6578\u7684\u5b9a\u7fa9<\/h3>\n<pre><code>SELECT \n    employee_id, \n    salary, \n    AVG(salary) OVER (ORDER BY salary ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) AS avg_salary\nFROM \n    employees;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING\u8868\u793a\u8a08\u7b97\u7576\u524d\u884c\u7684\u524d\u4e00\u884c\u548c\u4e0b\u4e00\u884c\u7684\u5e73\u5747\u85aa\u6c34\u3002\u5982\u679c\u6578\u64da\u96c6\u4e2d\u53ea\u6709\u4e00\u884c\uff0c\u5247\u9019\u6a23\u7684\u5b9a\u7fa9\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u53ef\u4ee5\u8003\u616e\u4f7f\u7528UNBOUNDED PRECEDING\u548cUNBOUNDED FOLLOWING\u4f86\u907f\u514d\u6b64\u554f\u984c\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8unbounded%e7%af%84%e5%9c%8d-hVtDdIxOwh\">2. \u4f7f\u7528UNBOUNDED\u7bc4\u570d<\/h3>\n<pre><code>SELECT \n    employee_id, \n    salary, \n    AVG(salary) OVER (ORDER BY salary ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS avg_salary\nFROM \n    employees;\n<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u5b9a\u7fa9\u5c07\u8a08\u7b97\u6574\u500b\u5206\u5340\u7684\u5e73\u5747\u85aa\u6c34\uff0c\u907f\u514d\u4e86\u56e0\u70ba\u884c\u6578\u4e0d\u8db3\u800c\u5f15\u767c\u7684\u932f\u8aa4\u3002<\/p>\n<h3 id=\"3-%e7%a2%ba%e4%bf%9d%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e4%b8%80%e8%87%b4-hVtDdIxOwh\">3. \u78ba\u4fdd\u6578\u64da\u985e\u578b\u4e00\u81f4<\/h3>\n<p>\u5728\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u6642\uff0c\u78ba\u4fdd\u6240\u6709\u53c3\u6578\u7684\u6578\u64da\u985e\u578b\u4e00\u81f4\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u5728ORDER BY\u5b50\u53e5\u4e2d\u4f7f\u7528\u4e86\u5b57\u7b26\u4e32\u985e\u578b\u7684\u5217\uff0c\u5247\u5728\u8a08\u7b97\u6642\u4e5f\u61c9\u4f7f\u7528\u76f8\u540c\u985e\u578b\u7684\u5217\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-hVtDdIxOwh\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc22013 &#8211; invalid_preceding_or_following_size\u901a\u5e38\u662f\u7531\u65bc\u7a97\u53e3\u51fd\u6578\u7684\u7bc4\u570d\u5b9a\u7fa9\u4e0d\u7576\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u7a97\u53e3\u51fd\u6578\u7684\u5b9a\u7fa9\u3001\u4f7f\u7528UNBOUNDED\u7bc4\u570d\u4ee5\u53ca\u78ba\u4fdd\u6578\u64da\u985e\u578b\u4e00\u81f4\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\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\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\u53ef\u4ee5\u63d0\u4f9b\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u652f\u6301\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7ba1\u7406\u548c\u904b\u884c\u5176\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc22013\uff1ainvalid_preceding_or_following_size\uff0c\u89e3\u6c7a\u7a97\u53e3\u51fd\u6578\u4e2d\u7684\u5927\u5c0f\u554f\u984c\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-178720","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178720","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=178720"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178720\/revisions"}],"predecessor-version":[{"id":178721,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178720\/revisions\/178721"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}