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数据库系统原理（04735）
关系代数表达式优化的启发式规则有：尽早地执行_______和投影操作，避免直接做笛卡尔积。
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数据库系统原理
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请求信息 : 2026-08-17 10:49:52 HTTP/2.0 GET : web.20230611.cn/index/question/detail/id/63600.html
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[ BEHAVIOR ] Run Closure @app_init [ RunTime:0.000026s ]
[ CACHE ] INIT File
[ BEHAVIOR ] Run \addons\alioss\Alioss @app_init [ RunTime:0.000520s ]
[ BEHAVIOR ] Run Closure @app_init [ RunTime:0.000544s ]
[ BEHAVIOR ] Run app\common\behavior\Common @app_init [ RunTime:0.000184s ]
[ LANG ] /www/wwwroot/learn/thinker/admin/thinkphp/lang/zh-cn.php
[ BEHAVIOR ] Run app\common\behavior\Common @app_dispatch [ RunTime:0.000023s ]
[ ROUTE ] array ( 'type' => 'module', 'module' => array ( 0 => 'index', 1 => 'question', 2 => 'detail', ), )
[ HEADER ] array ( 'accept-encoding' => 'gzip, br, zstd, deflate', 'user-agent' => 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)', 'accept' => '*/*', 'host' => 'web.20230611.cn', 'content-length' => '', 'content-type' => '', )
[ PARAM ] array ( 'id' => '63600', )
[ LANG ] /www/wwwroot/learn/thinker/admin/public/../application/index/lang/zh-cn.php
[ BEHAVIOR ] Run app\common\behavior\Common @module_init [ RunTime:0.000194s ]
[ BEHAVIOR ] Run \addons\alioss\Alioss @module_init [ RunTime:0.000141s ]
[ BEHAVIOR ] Run \addons\user\User @upload_config_checklogin [ RunTime:0.000035s ]
[ BEHAVIOR ] Run \addons\alioss\Alioss @upload_config_init [ RunTime:0.000115s ]
[ BEHAVIOR ] Run \addons\summernote\Summernote @config_init [ RunTime:0.000139s ]
[ RUN ] app\index\controller\Question->detail[ /www/wwwroot/learn/thinker/admin/application/index/controller/Question.php ]
[ DB ] INIT mysql
[ VIEW ] /www/wwwroot/learn/thinker/admin/public/../application/index/view/question/detail.html [ array ( 0 => 'user', 1 => 'site', 2 => 'config', 3 => 'question', 4 => 'relatedQuestions', ) ]
0.094875s
