摘要:
2500万条数据测试select count(id) as total from content where status=1; 49秒钟,cpu暴涨select id from content where status=1; 30秒钟左右select count(id) as total from content where status=1 and sort=1 and ifphoto = 1 and ifattr=1 48秒钟,cpu暴涨20%select id as total from content where status=1 and sort=1 and ifphoto ... 阅读全文