englefly commented on code in PR #45310:
URL: https://github.com/apache/doris/pull/45310#discussion_r1883189291
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fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rules/RangeInference.java:
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@@ -130,10 +132,22 @@ private ValueDesc simplify(ExpressionRewriteContext
context,
Expression originExpr, List<Expression> predicates,
BinaryOperator<ValueDesc> op, boolean isAnd) {
+ boolean convertIsNullToEmptyValue = isAnd &&
predicates.stream().anyMatch(expr -> expr instanceof NullLiteral);
Review Comment:
it is better to check if predicates contains "isNull" and "null" literal.
if match, return EmtpyValue directly, and skip the for loop in line138-150
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rules/RangeInference.java:
##########
@@ -469,6 +486,9 @@ public ValueDesc union(ValueDesc other) {
@Override
public ValueDesc intersect(ValueDesc other) {
+ if (other instanceof EmptyValue) {
+ return other.intersect(this);
Review Comment:
why not return EmptyValue?
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