{"id":178790,"date":"2024-11-08T20:55:20","date_gmt":"2024-11-08T12:55:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178790\/"},"modified":"2024-11-08T20:55:22","modified_gmt":"2024-11-08T12:55:22","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%9a2203d-too_many_json_array_elements%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178790\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2203D &#8211; too_many_json_array_elements\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%9a2203d-too_many_json_array_elements-EVAHDOddAi\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2203D &#8211; too_many_json_array_elements<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\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\u78bc2203D\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u986f\u793a\u70ba\u201ctoo_many_json_array_elements\u201d\u3002\u9019\u500b\u932f\u8aa4\u4e3b\u8981\u8207JSON\u6578\u64da\u985e\u578b\u7684\u4f7f\u7528\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u578bJSON\u6578\u7d44\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u6210\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-EVAHDOddAi\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>PostgreSQL\u7684JSON\u6578\u64da\u985e\u578b\u5141\u8a31\u7528\u6236\u5b58\u5132\u548c\u67e5\u8a62JSON\u683c\u5f0f\u7684\u6578\u64da\u3002\u7576\u7528\u6236\u5617\u8a66\u63d2\u5165\u6216\u67e5\u8a62\u7684JSON\u6578\u7d44\u5143\u7d20\u8d85\u904ePostgreSQL\u7684\u9650\u5236\u6642\uff0c\u5c31\u6703\u51fa\u73fe2203D\u932f\u8aa4\u3002\u6839\u64daPostgreSQL\u7684\u6587\u6a94\uff0c\u55ae\u500bJSON\u6578\u7d44\u7684\u5143\u7d20\u6578\u91cf\u4e0a\u9650\u70ba1,073,741,824\uff08\u53732^30\uff09\uff0c\u9019\u610f\u5473\u8457\u5982\u679c\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u6578\u91cf\u8d85\u904e\u6b64\u9650\u5236\uff0c\u5c31\u6703\u5f15\u767c\u932f\u8aa4\u3002<\/p>\n<h3 id=\"%e5%b8%b8%e8%a6%8b%e5%a0%b4%e6%99%af-EVAHDOddAi\">\u5e38\u898b\u5834\u666f<\/h3>\n<ul>\n<li>\u5728\u4e00\u500bINSERT\u8a9e\u53e5\u4e2d\u63d2\u5165\u904e\u591a\u7684JSON\u6578\u7d44\u5143\u7d20\u3002<\/li>\n<li>\u5728\u4f7f\u7528JSON\u805a\u5408\u51fd\u6578\uff08\u5982json_agg\uff09\u6642\uff0c\u751f\u6210\u7684\u6578\u7d44\u8d85\u904e\u4e86\u9650\u5236\u3002<\/li>\n<li>\u5728\u9032\u884c\u8907\u96dc\u67e5\u8a62\u6642\uff0c\u610f\u5916\u5730\u751f\u6210\u4e86\u904e\u5927\u7684JSON\u6578\u7d44\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-EVAHDOddAi\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa92203D\u932f\u8aa4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e6%b8%9b%e5%b0%91json%e6%95%b8%e7%b5%84%e7%9a%84%e5%85%83%e7%b4%a0%e6%95%b8%e9%87%8f-EVAHDOddAi\">1. \u6e1b\u5c11JSON\u6578\u7d44\u7684\u5143\u7d20\u6578\u91cf<\/h3>\n<p>\u6700\u76f4\u63a5\u7684\u89e3\u6c7a\u65b9\u6848\u662f\u6aa2\u67e5\u4e26\u6e1b\u5c11\u8981\u63d2\u5165\u6216\u67e5\u8a62\u7684JSON\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u6578\u91cf\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u5be6\u73fe\uff1a<\/p>\n<pre><code>-- \u5047\u8a2d\u6709\u4e00\u500b\u540d\u70badata\u7684\u8868\uff0c\u4e26\u4e14\u8981\u63d2\u5165\u7684JSON\u6578\u7d44\u5982\u4e0b\uff1a\nINSERT INTO data (json_column) VALUES ('{\"items\": [1, 2, 3, ..., N]}');\n\n-- \u78ba\u4fddN\u4e0d\u8d85\u904e\u9650\u5236\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2-EVAHDOddAi\">2. \u4f7f\u7528\u5206\u9801\u67e5\u8a62<\/h3>\n<p>\u5982\u679c\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5206\u9801\u67e5\u8a62\u4f86\u5206\u6279\u7372\u53d6\u6578\u64da\uff0c\u5f9e\u800c\u907f\u514d\u4e00\u6b21\u6027\u751f\u6210\u904e\u5927\u7684JSON\u6578\u7d44\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT json_agg(item) FROM (\n    SELECT * FROM items LIMIT 100 OFFSET 0\n) AS subquery;\n<\/code><\/pre>\n<h3 id=\"3-%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-EVAHDOddAi\">3. \u512a\u5316\u6578\u64da\u7d50\u69cb<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u8003\u616e\u6578\u64da\u7684\u7d50\u69cb\u3002\u5c07\u6578\u64da\u62c6\u5206\u70ba\u591a\u500b\u8868\uff0c\u4e26\u4f7f\u7528\u95dc\u806f\u4f86\u7ba1\u7406\u6578\u64da\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u55ae\u500bJSON\u6578\u7d44\u7684\u5927\u5c0f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>-- \u5c07items\u8868\u62c6\u5206\u70ba\u591a\u500b\u8868\nCREATE TABLE items_part1 AS SELECT * FROM items WHERE id &lt;= 1000;\nCREATE TABLE items_part2 AS SELECT * FROM items WHERE id &gt; 1000;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-EVAHDOddAi\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc2203D &#8211; too_many_json_array_elements\u901a\u5e38\u662f\u7531\u65bcJSON\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u6578\u91cf\u8d85\u904e\u4e86PostgreSQL\u7684\u9650\u5236\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u6e1b\u5c11\u6578\u7d44\u7684\u5143\u7d20\u6578\u91cf\u3001\u4f7f\u7528\u5206\u9801\u67e5\u8a62\u6216\u512a\u5316\u6578\u64da\u7d50\u69cb\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\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>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u5f9e\u800c\u6e1b\u5c11\u6b64\u985e\u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc2203D &#8211; too_many_json_array_elements\u7684\u6307\u5357\uff0c\u5e6b\u52a9\u60a8\u89e3\u6c7aJSON\u6578\u7d44\u5143\u7d20\u904e\u591a\u7684\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-178790","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178790","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=178790"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178790\/revisions"}],"predecessor-version":[{"id":178791,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178790\/revisions\/178791"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}