[hotfix][table-planner] Use equals instead of '==' to compare digests…

… in FlinkCalcMergeRule This closes #26108
apache · Feb 5, 2025 · c3c7f0c · c3c7f0c
1 parent ac4f595
commit c3c7f0c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/...r/src/main/java/org/apache/flink/table/planner/plan/rules/logical/FlinkCalcMergeRule.java b/...r/src/main/java/org/apache/flink/table/planner/plan/rules/logical/FlinkCalcMergeRule.java
@@ -77,7 +77,7 @@ public void onMatch(RelOptRuleCall call) {
         Calc bottomCalc = call.rel(1);
 
         Calc newCalc = FlinkRelUtil.merge(topCalc, bottomCalc);
-        if (newCalc.getDigest() == bottomCalc.getDigest()) {
+        if (newCalc.getDigest().equals(bottomCalc.getDigest())) {
             // newCalc is equivalent to bottomCalc,
             // which means that topCalc
             // must be trivial. Take it out of the game.