文章目录 问题1:Django数据库恢复问题2:null和blank的区别3.报错 django.db.utils.IntegrityError: (1062, “Duplicate entry ‘‘ for key ‘mobile‘“)4.报错 Refused to display ‘url‘ in a frame because it set ‘X-Frame-Options‘ to deny5.报错 RuntimeError: cryp…
Hive 查询优化
-- 本地
set mapreduce.framework.namelocal;
set hive.exec.mode.local.autotrue;
set mapperd.job.trackerlocal;
-- yarn
set mapreduce.framework.nameyarn;
set hive.exec.mode.local.autofalse;
set mapperd.job.trackeryarn-- 向量模式
set hive.vectori…