adonis0147 commented on code in PR #11299:
URL: https://github.com/apache/doris/pull/11299#discussion_r934132006
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/TernaryExpression.java:
##########
@@ -23,17 +23,4 @@
* Interface for all expression that have three children.
*/
public interface TernaryExpression extends TernaryNode<Expression, Expression,
Expression, Expression> {
-
-
- default Expression first() {
- return child(0);
- }
-
- default Expression second() {
- return child(1);
- }
-
- default Expression third() {
- return child(2);
- }
}
Review Comment:
I seems that all classes implement the interface `TernaryExpression` return
`Expression` object when they call `first`, `second` and `third` method. The
`CHILD_TYPE` in `TernaryNode` infers to `Expression`.
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