morrySnow commented on code in PR #67878:
URL: https://github.com/apache/doris/pull/67878#discussion_r4034410684
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/util/ExpressionUtils.java:
##########
@@ -1205,9 +1205,63 @@ public static boolean isInjective(Expression expression)
{
return expression instanceof Slot;
}
- // if the input is unique, the output of agg is unique, too
+ private static boolean isInjectiveAggArgument(Expression expression) {
+ if (expression instanceof Slot) {
+ return true;
+ }
+ if (!(expression instanceof Cast)) {
+ return false;
Review Comment:
do not support functions in this PR
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