Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/1009#discussion_r61831279
--- Diff:
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/CommonJoinExec.java
---
@@ -145,7 +145,7 @@ public JoinNode getPlan() {
* @return True if an input tuple is matched to the left join filter
*/
protected boolean leftFiltered(Tuple left) {
- return leftJoinFilter != null && !leftJoinFilter.eval(left).asBool();
+ return leftJoinFilter != null && !leftJoinFilter.eval(left).isTrue();
--- End diff --
No, asBool() incurs an invalid cast exception. Please refer to
https://en.wikipedia.org/wiki/Three-valued_logic.
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