spaces-X opened a new issue #3897:
URL: https://github.com/apache/incubator-doris/issues/3897
In Analyzer #registerColumnRef
We got warning like this:
```
/*
* Now, we only support the columns in the subquery to associate the
outer query columns in parent level.
* If the level of the association exceeds one level, the associated
columns in subquery could not be resolved.
* For example:
* Select k1 from table a where k1=(select k1 from table b where
k1=(select k1 from table c where a.k1=k1));
* The inner subquery: select k1 from table c where a.k1=k1;
* There is a associated column (a.k1) which belongs to the outer
query appears in the inner subquery.
* This column could not be resolved because doris can only resolved
the parent column instead of grandpa.
* The exception of this query like that: Unknown column 'k1' in 'a'
*/
```
Does the problem exist in branch 11 ?
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