DonnyZone commented on a change in pull request #1532: [CALCITE-3448]
AggregateOnProjectToAggregateUnifyRule ignores Project…
URL: https://github.com/apache/calcite/pull/1532#discussion_r339512369
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File path: core/src/main/java/org/apache/calcite/util/mapping/Mappings.java
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@@ -434,7 +434,9 @@ public static boolean keepsOrdering(TargetMapping mapping)
{
if (target != -1 && target < prevTarget) {
return false;
}
- prevTarget = target;
+ if (target != -1) {
Review comment:
Maybe we can combine two `if` clause together?
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