{"id":96858,"date":"2024-10-20T12:57:18","date_gmt":"2024-10-20T04:57:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96858\/"},"modified":"2024-10-20T12:57:19","modified_gmt":"2024-10-20T04:57:19","slug":"postgresql-55p02-%e7%84%a1%e6%b3%95%e6%9b%b4%e6%94%b9%e9%81%8b%e8%a1%8c%e6%99%82%e5%8f%83%e6%95%b8-%e6%8a%a5%e9%94%99-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%a4%8d-%e8%bf%9c%e7%a8%8b%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96858\/","title":{"rendered":"PostgreSQL 55P02: \u7121\u6cd5\u66f4\u6539\u904b\u884c\u6642\u53c3\u6578 \u62a5\u9519 \u6545\u969c\u4fee\u590d \u8fdc\u7a0b\u5904\u7406"},"content":{"rendered":"<h1 id=\"postgresql-55p02-%e7%84%a1%e6%b3%95%e6%9b%b4%e6%94%b9%e9%81%8b%e8%a1%8c%e6%99%82%e5%8f%83%e6%95%b8-%e6%8a%a5%e9%94%99-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%a4%8d-%e8%bf%9c%e7%a8%8b%e5%a4%84%e7%90%86-sklAJPNAaJ\">PostgreSQL 55P02: \u7121\u6cd5\u66f4\u6539\u904b\u884c\u6642\u53c3\u6578 \u62a5\u9519 \u6545\u969c\u4fee\u590d \u8fdc\u7a0b\u5904\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u548c\u8b66\u544a\u3002\u5176\u4e2d\uff0c\u932f\u8aa4\u4ee3\u78bc <code>55P02<\/code> \u8868\u793a\u300c\u7121\u6cd5\u66f4\u6539\u904b\u884c\u6642\u53c3\u6578\u300d\uff0c\u9019\u901a\u5e38\u662f\u7531\u65bc\u5617\u8a66\u5728\u4e0d\u5141\u8a31\u7684\u4e0a\u4e0b\u6587\u4e2d\u4fee\u6539\u67d0\u4e9b\u53c3\u6578\u800c\u5f15\u8d77\u7684\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-sklAJPNAaJ\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>PostgreSQL \u7684\u904b\u884c\u6642\u53c3\u6578\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u4e0a\u4e0b\u6587\u4e2d\u9032\u884c\u4fee\u6539\uff0c\u4f8b\u5982\u5728\u6703\u8a71\u7d1a\u5225\u6216\u5168\u5c40\u7d1a\u5225\u3002\u7136\u800c\uff0c\u67d0\u4e9b\u53c3\u6578\u53ea\u80fd\u5728\u7279\u5b9a\u7684\u4e0a\u4e0b\u6587\u4e2d\u9032\u884c\u66f4\u6539\u3002\u4f8b\u5982\uff0c\u7576\u4f60\u5617\u8a66\u5728\u4e00\u500b\u4e8b\u52d9\u4e2d\u66f4\u6539\u5168\u5c40\u53c3\u6578\u6642\uff0c\u5c31\u6703\u51fa\u73fe <code>55P02<\/code> \u932f\u8aa4\u3002\u9019\u662f\u56e0\u70ba PostgreSQL \u4e0d\u5141\u8a31\u5728\u4e8b\u52d9\u4e2d\u9032\u884c\u9019\u985e\u66f4\u6539\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<h3 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e9%81%8b%e8%a1%8c%e6%99%82%e5%8f%83%e6%95%b8-sklAJPNAaJ\">\u5e38\u898b\u7684\u904b\u884c\u6642\u53c3\u6578<\/h3>\n<ul>\n<li><code>work_mem<\/code>: \u7528\u65bc\u67e5\u8a62\u64cd\u4f5c\u7684\u5167\u5b58\u5927\u5c0f\u3002<\/li>\n<li><code>maintenance_work_mem<\/code>: \u7528\u65bc\u7dad\u8b77\u64cd\u4f5c\u7684\u5167\u5b58\u5927\u5c0f\u3002<\/li>\n<li><code>search_path<\/code>: \u5b9a\u7fa9\u67e5\u8a62\u6642\u7684\u6a21\u5f0f\u641c\u7d22\u8def\u5f91\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-sklAJPNAaJ\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9 <code>55P02<\/code> \u932f\u8aa4\u7684\u7b2c\u4e00\u6b65\u662f\u78ba\u5b9a\u4f60\u5617\u8a66\u66f4\u6539\u7684\u53c3\u6578\u53ca\u5176\u4e0a\u4e0b\u6587\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e4%b8%8a%e4%b8%8b%e6%96%87-sklAJPNAaJ\">1. \u78ba\u8a8d\u4e0a\u4e0b\u6587<\/h3>\n<p>\u5728\u5617\u8a66\u66f4\u6539\u904b\u884c\u6642\u53c3\u6578\u4e4b\u524d\uff0c\u8acb\u78ba\u8a8d\u4f60\u7576\u524d\u7684\u4e0a\u4e0b\u6587\u3002\u5982\u679c\u4f60\u5728\u4e00\u500b\u4e8b\u52d9\u4e2d\uff0c\u8acb\u8003\u616e\u5c07\u53c3\u6578\u66f4\u6539\u79fb\u5230\u4e8b\u52d9\u5916\u90e8\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>BEGIN;\nSET work_mem = '64MB';  -- \u9019\u6703\u5c0e\u81f4\u932f\u8aa4\nCOMMIT;\n<\/code><\/pre>\n<p>\u61c9\u8a72\u9019\u6a23\u505a\uff1a<\/p>\n<pre><code>SET work_mem = '64MB';  -- \u5728\u4e8b\u52d9\u5916\u90e8\u9032\u884c\u8a2d\u7f6e\nBEGIN;\n-- \u4f60\u7684\u67e5\u8a62\nCOMMIT;\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%ad%a3%e7%a2%ba%e7%9a%84%e5%91%bd%e4%bb%a4-sklAJPNAaJ\">2. \u4f7f\u7528\u6b63\u78ba\u7684\u547d\u4ee4<\/h3>\n<p>\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684 SQL \u547d\u4ee4\u4f86\u66f4\u6539\u53c3\u6578\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 <code>SET<\/code> \u547d\u4ee4\u4f86\u66f4\u6539\u6703\u8a71\u7d1a\u5225\u7684\u53c3\u6578\uff0c\u800c\u4f7f\u7528 <code>ALTER SYSTEM<\/code> \u4f86\u66f4\u6539\u5168\u5c40\u53c3\u6578\uff1a<\/p>\n<pre><code>ALTER SYSTEM SET work_mem = '64MB';  -- \u5168\u5c40\u8a2d\u7f6e\nSELECT pg_reload_conf();  -- \u91cd\u65b0\u52a0\u8f09\u914d\u7f6e\n<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e6%ac%8a%e9%99%90-sklAJPNAaJ\">3. \u6aa2\u67e5\u6b0a\u9650<\/h3>\n<p>\u67d0\u4e9b\u53c3\u6578\u7684\u66f4\u6539\u53ef\u80fd\u9700\u8981\u7279\u5b9a\u7684\u6b0a\u9650\u3002\u5982\u679c\u4f60\u6c92\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u66f4\u6539\u67d0\u500b\u53c3\u6578\uff0c\u5247\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u8acb\u6aa2\u67e5\u4f60\u7684\u7528\u6236\u89d2\u8272\u548c\u6b0a\u9650\u8a2d\u7f6e\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-sklAJPNAaJ\">\u9060\u7a0b\u8655\u7406<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528\u96f2\u670d\u52d9\u6216\u9060\u7a0b\u4f3a\u670d\u5668\u6642\uff0c\u53ef\u80fd\u9700\u8981\u9060\u7a0b\u8655\u7406\u6b64\u932f\u8aa4\u3002\u78ba\u4fdd\u4f60\u6709\u9069\u7576\u7684\u8a2a\u554f\u6b0a\u9650\uff0c\u4e26\u4e14\u53ef\u4ee5\u901a\u904e SSH \u6216\u5176\u4ed6\u9060\u7a0b\u7ba1\u7406\u5de5\u5177\u9032\u884c\u64cd\u4f5c\u3002\u4f7f\u7528 <code>psql<\/code> \u547d\u4ee4\u884c\u5de5\u5177\u53ef\u4ee5\u65b9\u4fbf\u5730\u9032\u884c\u53c3\u6578\u8a2d\u7f6e\u548c\u67e5\u8a62\u3002<\/p>\n<pre><code>psql -h your_remote_host -U your_user -d your_database\nSET work_mem = '64MB';\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sklAJPNAaJ\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u7684 <code>55P02<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u5728\u4e0d\u5141\u8a31\u7684\u4e0a\u4e0b\u6587\u4e2d\u5617\u8a66\u66f4\u6539\u904b\u884c\u6642\u53c3\u6578\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u78ba\u8a8d\u4e0a\u4e0b\u6587\u3001\u4f7f\u7528\u6b63\u78ba\u7684\u547d\u4ee4\u4ee5\u53ca\u6aa2\u67e5\u6b0a\u9650\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5728\u8655\u7406\u9060\u7a0b\u4f3a\u670d\u5668\u6642\uff0c\u78ba\u4fdd\u6709\u9069\u7576\u7684\u8a2a\u554f\u6b0a\u9650\u548c\u5de5\u5177\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u53ef\u4ee5\u63d0\u4f9b\u66f4\u597d\u7684\u652f\u6301\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a PostgreSQL 55P02 \u932f\u8aa4\uff0c\u7121\u6cd5\u66f4\u6539\u904b\u884c\u6642\u53c3\u6578\u7684\u6545\u969c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u9060\u7a0b\u8655\u7406\u548c\u4fee\u5fa9\u65b9\u6848\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-96858","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96858","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=96858"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96858\/revisions"}],"predecessor-version":[{"id":96859,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96858\/revisions\/96859"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}