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select to_char(date_published, 'yyyymm') yo from blog group by yo;
date_published 是timestamp with time zone 类型数据
我用cast() 试了一下 , 可group_by 不知道如何使用
貌似只能用extract() 了
小伙看你根骨奇佳,潜力无限,来学PHP伐。
已解决 可以通过 func 直接调用数据库支持的函数或存储过程
yonth = db.func.to_char(ArticleModel.date_published, 'yyyymm').label('yonth') archive_list = ( db.session.query(yonth, db.func.count(1)).group_by('yonth').all() )
已解决
可以通过 func 直接调用数据库支持的函数或存储过程