{"id":179078,"date":"2024-11-08T22:49:17","date_gmt":"2024-11-08T14:49:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179078\/"},"modified":"2024-11-08T22:49:18","modified_gmt":"2024-11-08T14:49:18","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a54001-statement_too_complex%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179078\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a54001 &#8211; statement_too_complex\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a54001-statement_too_complex-pDCizLOrub\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a54001 &#8211; statement_too_complex<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \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\u78bc 54001\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u986f\u793a\u70ba &#8220;statement too complex&#8221;\u3002\u9019\u610f\u5473\u8457\u57f7\u884c\u7684 SQL \u8a9e\u53e5\u904e\u65bc\u8907\u96dc\uff0c\u8d85\u51fa\u4e86 PostgreSQL \u7684\u8655\u7406\u80fd\u529b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\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-pDCizLOrub\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>PostgreSQL \u5c0d\u65bc SQL \u8a9e\u53e5\u7684\u8907\u96dc\u6027\u6709\u4e00\u5b9a\u7684\u9650\u5236\uff0c\u7576\u4e00\u500b\u67e5\u8a62\u5305\u542b\u904e\u591a\u7684\u5b50\u67e5\u8a62\u3001\u806f\u63a5\u6216\u5176\u4ed6\u8907\u96dc\u64cd\u4f5c\u6642\uff0c\u5c31\u53ef\u80fd\u89f8\u767c\u6b64\u932f\u8aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u904e\u591a\u7684\u806f\u63a5\uff1a<\/strong>\u7576\u67e5\u8a62\u6d89\u53ca\u591a\u500b\u8868\u7684\u806f\u63a5\u6642\uff0c\u7279\u5225\u662f\u7576\u9019\u4e9b\u8868\u4e4b\u9593\u7684\u95dc\u4fc2\u975e\u5e38\u8907\u96dc\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6df1\u5c64\u7684\u5b50\u67e5\u8a62\uff1a<\/strong>\u5982\u679c\u67e5\u8a62\u4e2d\u5305\u542b\u591a\u5c64\u5d4c\u5957\u7684\u5b50\u67e5\u8a62\uff0c\u9019\u4e5f\u53ef\u80fd\u4f7f\u5f97\u67e5\u8a62\u8b8a\u5f97\u904e\u65bc\u8907\u96dc\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e86\u5927\u91cf\u7684 CASE \u8a9e\u53e5\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u904e\u591a\u7684 CASE \u8a9e\u53e5\u6703\u589e\u52a0 SQL \u8a9e\u53e5\u7684\u8907\u96dc\u6027\u3002<\/li>\n<li><strong>\u4e0d\u5fc5\u8981\u7684\u8a08\u7b97\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u4e0d\u5fc5\u8981\u7684\u8a08\u7b97\u6216\u8f49\u63db\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-pDCizLOrub\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 54001\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e7%b0%a1%e5%8c%96%e6%9f%a5%e8%a9%a2-pDCizLOrub\">1. \u7c21\u5316\u67e5\u8a62<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5 SQL \u8a9e\u53e5\uff0c\u770b\u770b\u662f\u5426\u53ef\u4ee5\u7c21\u5316\u3002\u9019\u53ef\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6e1b\u5c11\u806f\u63a5\u7684\u8868\u6578\u91cf\u3002<\/li>\n<li>\u5c07\u8907\u96dc\u7684\u5b50\u67e5\u8a62\u62c6\u5206\u70ba\u591a\u500b\u7c21\u55ae\u7684\u67e5\u8a62\uff0c\u7136\u5f8c\u5c07\u7d50\u679c\u5408\u4f75\u3002<\/li>\n<li>\u907f\u514d\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u904e\u591a\u7684 CASE \u8a9e\u53e5\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e8%87%a8%e6%99%82%e8%a1%a8-pDCizLOrub\">2. \u4f7f\u7528\u81e8\u6642\u8868<\/h3>\n<p>\u5982\u679c\u67e5\u8a62\u904e\u65bc\u8907\u96dc\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u81e8\u6642\u8868\u4f86\u5b58\u5132\u4e2d\u9593\u7d50\u679c\u3002\u9019\u6a23\u53ef\u4ee5\u5c07\u8907\u96dc\u7684\u67e5\u8a62\u5206\u89e3\u70ba\u591a\u500b\u7c21\u55ae\u7684\u67e5\u8a62\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TEMP TABLE temp_results AS\nSELECT * FROM large_table WHERE condition;\n\nSELECT * FROM temp_results WHERE another_condition;<\/code><\/pre>\n<h3 id=\"3-%e5%84%aa%e5%8c%96%e7%b4%a2%e5%bc%95-pDCizLOrub\">3. \u512a\u5316\u7d22\u5f15<\/h3>\n<p>\u78ba\u4fdd\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u8868\u6709\u9069\u7576\u7684\u7d22\u5f15\u3002\u9019\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u9084\u53ef\u4ee5\u6e1b\u5c11\u67e5\u8a62\u7684\u8907\u96dc\u6027\u3002\u4f7f\u7528 EXPLAIN \u547d\u4ee4\u4f86\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u627e\u51fa\u53ef\u80fd\u7684\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<pre><code>EXPLAIN SELECT * FROM your_table WHERE your_condition;<\/code><\/pre>\n<h3 id=\"4-%e5%88%86%e6%9e%90%e6%9f%a5%e8%a9%a2%e8%a8%88%e5%8a%83-pDCizLOrub\">4. \u5206\u6790\u67e5\u8a62\u8a08\u5283<\/h3>\n<p>\u4f7f\u7528 PostgreSQL \u7684 EXPLAIN \u548c EXPLAIN ANALYZE \u547d\u4ee4\u4f86\u67e5\u770b\u67e5\u8a62\u8a08\u5283\uff0c\u9019\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u67e5\u8a62\u4e2d\u7684\u554f\u984c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>EXPLAIN ANALYZE SELECT * FROM your_table WHERE your_condition;<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\u548c\u5be6\u969b\u57f7\u884c\u6642\u9593\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-pDCizLOrub\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc 54001 &#8211; statement_too_complex \u901a\u5e38\u662f\u7531\u65bc SQL \u8a9e\u53e5\u904e\u65bc\u8907\u96dc\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u7c21\u5316\u67e5\u8a62\u3001\u4f7f\u7528\u81e8\u6642\u8868\u3001\u512a\u5316\u7d22\u5f15\u4ee5\u53ca\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u6027\u80fd\u7a69\u5b9a\uff0c\u5f9e\u800c\u907f\u514d\u985e\u4f3c\u7684\u932f\u8aa4\u767c\u751f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 54001 &#8211; statement_too_complex\uff0c\u7c21\u5316\u67e5\u8a62\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u53ef\u57f7\u884c\u6027\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-179078","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179078","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=179078"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179078\/revisions"}],"predecessor-version":[{"id":179079,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179078\/revisions\/179079"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}