因为它未包含在aggregate funct或GROUP BY中”Expression #1 of SELECT list is not in GROUP BY claus...
整条sql执行下来只需要32s。 测试效果 Polardb in-list优化后在tpch100G数据集上比原生方式提升11.5倍,又因为Polardb支持并行查询,32并行度模式下提升上百倍。 总结 原理上讲polardb做完IN-list 转换为Join-list后,能得到如下俩方面提升 IN-list 里面的常量都经过物化去重,基数可能会有不小的下降,这取决于重复值。
MongoDB 中Aggregate使用与相关限制 代码InstitutionID 是非统计字段 db.getCollection('6117Decartes').aggregate( [ { $group : {...( [ { $group : { _id : "$author", books: { $push: "$title" } } } ] ); 可能出现的问题:分组内存使用超过限制时错误...id 字段是必须要的,如果不指定字段...
mysql5.7执行sql语句报错:In aggregated query without GROUP BY, expression #1 of SELECT list contains nonagg... ERROR 1055 (42000): Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregate ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause a...
1.查看.sql_mode配置 select@@global.sql_mode; 2.查看返回信息是否包含ONLY_FULL_GROUP_BY ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION; 3.去掉ONLY_FULL_GROUP_BY ,其他参数不变,执行即可 SETGLOBAL sql_mode=‘STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION’; ...
SQL Error:An aggregate may not appear in the set list of an UPDATE statement.,原来sql语句: update[dbo].[TableA] setColumnA=Count(*) from[dbo].[TableB]改后: update[dbo].[TableA] setColumnA=tmpTable.ColumnB from( selectCount(*)asColumnB from[db
only_full_group_by这个 sql_mode 的唯一要求,就是所有的select 字段必须在 group by 字段中,否则必须出现在 SQL Aggregate 函数中,反过来却是非必须的 假设我们有下面一张表employee CREATETABLEIFNOTEXISTS`employee`(`id`INTUNSIGNEDAUTO_INCREMENT,`name`VARCHAR(64)NOTNULL,`depart`VARCHAR(128)NOTNULL,`depart...
ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregate,程序员大本营,技术文章内容聚合第一站。
8.00.194 if SQL Server 2000 with no service pack applied 8.00.384 if SQL Server 2000 Service Pack 1 Please note that the workarounds described in these articles are provided for information only. You do not need to implement these workarounds if you have the updated software. ...
8.00.194 if SQL Server 2000 with no service pack applied 8.00.384 if SQL Server 2000 Service Pack 1 Please note that the workarounds described in these articles are provided for information only. You do not need to implement these workarounds if you have the updated software. ...