数据库系统工程师2004至2011年试题分析与解答- 电子书下载

基本文件流程错误 SQL 调试

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[ LANG ] /www/wwwroot/manboo.info/thinkphp/lang/zh-cn.php
[ ROUTE ] array ( 'rule' => 'book/<id>', 'route' => 'index/Search/resources', 'option' => array ( 'merge_rule_regex' => false, ), 'var' => array ( 'id' => '17059', ), )
[ HEADER ] array ( 'x-forwarded-proto' => 'https', 'cf-visitor' => '{"scheme":"https"}', 'cf-ipcountry' => 'US', 'cf-connecting-ip' => '216.73.216.60', 'cdn-loop' => 'cloudflare; loops=1', 'user-agent' => 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])', 'accept-encoding' => 'gzip, br', 'accept' => '*/*', 'cf-ray' => 'a0cfe22468e23524-CMH', 'x-forwarded-for' => '216.73.216.60', 'host' => 'manboo.info', 'content-length' => '', 'content-type' => '', )
[ PARAM ] array ( 'id' => '17059', )
[ DB ] INIT mysql
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[ VIEW ] /www/wwwroot/manboo.info/application/index/view/search/resource.html [ array ( 0 => 'site_title', 1 => 'site_keywords', 2 => 'site_description', 3 => 'icp_number', 4 => 'contact_info', 5 => 'email_address', 6 => 'wechat_qrcode_url', 7 => 'site_logo_url', 8 => 'footer_copyright', 9 => 'maintenance_mode', 10 => 'hot_keywords', 11 => 'cateGroup', 12 => 'data', 13 => 'relatedResources', 14 => 'relatedResources_cates', 15 => 'recentResources', ) ]

[ DB ] CONNECT:[ UseTime:0.000376s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SHOW COLUMNS FROM `config` [ RunTime:0.000591s ]
[ SQL ] SELECT `value` FROM `config` WHERE `name` = 'maintenance_mode' LIMIT 1 [ RunTime:0.000320s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'config', 'partitions' => NULL, 'type' => 'const', 'possible_keys' => 'name', 'key' => 'name', 'key_len' => '1022', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => NULL, ) ]
[ DB ] CONNECT:[ UseTime:0.000628s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SHOW COLUMNS FROM `resources` [ RunTime:0.000869s ]
[ SQL ] SELECT * FROM `resources` WHERE `id` = 17059 LIMIT 1 [ RunTime:0.000513s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'const', 'possible_keys' => 'PRIMARY,id_2,id', 'key' => 'PRIMARY', 'key_len' => '8', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => NULL, ) ]
[ DB ] CONNECT:[ UseTime:0.000410s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT * FROM `resources` WHERE `jd_skuName` LIKE '%%' AND `id` <> 17059 LIMIT 10 [ RunTime:0.001844s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ALL', 'possible_keys' => 'PRIMARY,id_2,id', 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 49978, 'filtered' => 11.110000610351562, 'extra' => 'Using where', ) ]
[ DB ] CONNECT:[ UseTime:0.000532s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT * FROM `resources` WHERE `jd_cate3` = '计算机考试' AND `id` <> 17059 LIMIT 10 [ RunTime:0.001218s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'PRIMARY,id_2,id,jd_cate3', 'key' => 'jd_cate3', 'key_len' => '403', 'ref' => 'const', 'rows' => 1830, 'filtered' => 100.0, 'extra' => 'Using where', ) ]
[ DB ] CONNECT:[ UseTime:0.000503s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] UPDATE `resources` SET `views` = `views` + 1 WHERE `id` = 17059 [ RunTime:0.085630s ]
[ DB ] CONNECT:[ UseTime:0.000976s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SHOW COLUMNS FROM `keywords` [ RunTime:0.001185s ]
[ SQL ] SELECT * FROM `keywords` WHERE `is_audit` = 1 ORDER BY `search_count` DESC LIMIT 30 [ RunTime:0.000498s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'keywords', 'partitions' => NULL, 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 231, 'filtered' => 10.0, 'extra' => 'Using where; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000658s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT * FROM `resources` WHERE `id` <> 17059 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000716s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'index', 'possible_keys' => 'PRIMARY,id_2,id', 'key' => 'PRIMARY', 'key_len' => '8', 'ref' => NULL, 'rows' => 10, 'filtered' => 100.0, 'extra' => 'Using where', ) ]
[ DB ] CONNECT:[ UseTime:0.000523s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate2` FROM `resources` WHERE ( jd_cate2 <> "" ) ORDER BY `jd_cate2` ASC [ RunTime:0.002710s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'range', 'possible_keys' => 'jd_cate2', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => NULL, 'rows' => 64, 'filtered' => 100.0, 'extra' => 'Using where; Using index for group-by', ) ]
[ DB ] CONNECT:[ UseTime:0.000742s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '中小学教辅' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.003869s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 604, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000654s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '书法' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000812s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 6, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000402s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '二手书' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000914s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 28, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000372s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '传记' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000695s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 2, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000320s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '养生/保健' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000694s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 15, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000526s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '动漫' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001450s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 98, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000542s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '励志与成功' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.098308s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 10444, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.010274s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '医学' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001005s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 13, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000478s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '历史' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000736s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 27, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000376s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '哲学' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000646s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 18, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000295s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '国学/古籍' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000381s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 4, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000278s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '外语学习' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000953s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 106, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000337s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '大中专教材教辅' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000974s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 106, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000288s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '套装书' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000670s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 5, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000389s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '婚恋与两性' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000521s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 2, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000335s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '字典词典/工具书' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000429s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 2, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000237s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '学习用品' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000494s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 17, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000292s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '学历考试辅导' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000604s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 20, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000321s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '家教' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.008001s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1580, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000415s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '小说' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000858s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 44, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000451s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '工业技术' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000641s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 13, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000322s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '建筑' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000429s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000291s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '心理学' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001296s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 212, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000333s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '护理护具' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000406s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 2, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000244s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '政治/军事' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000508s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 24, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000686s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '教学/实验用品' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000500s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 19, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.006094s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '文创用品' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000790s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000583s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '文化' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000527s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 4, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.001383s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '文化用品' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000451s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 5, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000452s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '文学' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000651s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 33, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000662s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '旅游/地图' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000485s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 16, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000325s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '日文图书' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000386s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000401s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '早教/智能玩具' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000548s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000466s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '服务产品' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000547s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 2, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000384s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '本册纸签' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001455s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 162, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000427s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '杂志/期刊' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000765s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 37, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000468s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '棋牌麻将' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000634s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 5, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000845s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '法律' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000529s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 7, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000702s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '港台图书' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000737s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 9, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000739s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '电动车配件' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000704s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000354s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '电子与通信' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000614s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 7, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000557s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '白酒' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001006s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 4, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000426s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '益智玩具' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000659s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 32, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000321s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '社会科学' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000886s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 57, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000312s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '科学与自然' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000852s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 14, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000277s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '科普读物' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000803s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 58, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000317s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '积木拼插' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000434s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 2, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000317s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '童书' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.057432s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 12756, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.003347s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '管理' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001056s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 92, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000285s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '经济' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000973s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 99, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000642s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '绘图计算用品' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001226s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000562s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '考试' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.033733s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 6042, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000491s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '艺术' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000737s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.001011s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '计算机' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000663s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000345s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '计算机与互联网' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.085732s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 16380, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000582s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '身体护理' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000621s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000365s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '软件' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000488s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 1, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000602s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '运动/健身' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001018s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 2, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000386s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '进口原版' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000573s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 10, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000469s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '金融与投资' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.001818s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 661, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000520s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '青少年素质培养' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000492s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 5, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000304s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '青春文学' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000513s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 50, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]
[ DB ] CONNECT:[ UseTime:0.000264s ] mysql:host=127.0.0.1;port=3306;dbname=manboo_infoac;charset=utf8mb4
[ SQL ] SELECT DISTINCT `jd_cate3` FROM `resources` WHERE `jd_cate2` = '音乐' AND ( jd_cate3 <> "" ) ORDER BY `jd_cate3` ASC [ RunTime:0.000491s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'resources', 'partitions' => NULL, 'type' => 'ref', 'possible_keys' => 'jd_cate2,jd_cate3', 'key' => 'jd_cate2', 'key_len' => '403', 'ref' => 'const', 'rows' => 3, 'filtered' => 100.0, 'extra' => 'Using index condition; Using where; Using temporary; Using filesort', ) ]

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