szehon-ho commented on code in PR #7132:
URL: https://github.com/apache/iceberg/pull/7132#discussion_r1146647169
##########
api/src/main/java/org/apache/iceberg/expressions/StrictMetricsEvaluator.java:
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@@ -489,5 +500,32 @@ private boolean containsNaNsOnly(Integer id) {
&& valueCounts != null
&& nanCounts.get(id).equals(valueCounts.get(id));
}
+
+ private boolean supportsEvaluate(int fieldId) {
+ Boolean evaluable = canEvaluate.get(fieldId);
+ if (evaluable != null) {
+ return evaluable;
+ }
+
+ evaluable = true;
+ // Cannot evaluate on complex types or repeated primitive types.
+ if (!schema.findType(fieldId).isPrimitiveType()) {
+ evaluable = false;
+ } else {
+ Integer parent = idToParent.get(fieldId);
+ while (parent != null) {
+ Type type = schema.findType(parent);
+ if (type.isListType() || type.isMapType()) {
+ evaluable = false;
Review Comment:
So you are skipping if list/map type, but allowing struct, if I understand?
I think it makes sense to me, as I feel we have nested column stats. but
definitely like @rdblue @RussellSpitzer @aokolnychyi to have a sanity check
here on the overall direction.
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