mysql in/=any 带有子查询的运算符的奇怪行为

Question

我有以下查询:

select * from rootTable rt
where
  (select pk
   from someConfigTable
   where col1='someValue') = any(select confRef from t where t.r = rt.r)
and rt.pk = 123

(select pk from someConfigTable where col1='someValue') 返回一些数字 3456789 select confRef from t where t.r = rt.r 返回一些数字集合 3456789, 3456789 someConfigTable.pk 和 t.confRef 的类型为 bigint(20)

但由于某种原因查询没有返回任何行!

但是，当我用常量替换 (select pk from someConfigTable where col1='someValue') 时，它可以正常工作并返回一些行:

select * from rootTable rt
where 3456789 = any(select confRef from t where t.r = rt.r) and rt.pk = 123

问题是什么？？？

显示“%version%”等变量

# Variable_name, Value
innodb_version, 5.6.16
protocol_version, 10
slave_type_conversions, 
version, 5.6.16
version_comment, MySQL Community Server (GPL)
version_compile_machine, x86_64
version_compile_os, Win64

Answer 1

select * from rootTable rt
 where (select pk from someConfigTable where col1='someValue') in (select confRef from t          
  where t.r = rt.r) and rt.pk = 123

试试这个:)但我不能100%确定它会正常工作???