Github user hyunsik commented on a diff in the pull request:
https://github.com/apache/tajo/pull/874#discussion_r46516484
--- Diff:
tajo-plan/src/main/java/org/apache/tajo/plan/logical/ProjectionNode.java ---
@@ -64,8 +65,13 @@ public void setTargets(List<Target> targets) {
public List<Target> getTargets() {
return this.targets;
}
-
- public void setChild(LogicalNode subNode) {
+
+ @Override
+ public Stream<Target> targets() {
--- End diff --
This is because we still need List allowing access elements by index in
some codes.
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