danny0405 commented on code in PR #7801:
URL: https://github.com/apache/hudi/pull/7801#discussion_r1091455210
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hudi-flink-datasource/hudi-flink/src/main/java/org/apache/hudi/source/stats/ExpressionEvaluator.java:
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@@ -282,6 +286,9 @@ public static LessThan getInstance() {
@Override
public boolean eval() {
+ if (this.val == null) {
+ return false;
+ }
Review Comment:
Can we pre-process these NULLs before entering specific evaluators?
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