Sh-Zh-7 commented on code in PR #172:
URL: https://github.com/apache/tsfile/pull/172#discussion_r1673470769
##########
java/tsfile/src/main/java/org/apache/tsfile/read/filter/operator/ValueFilterOperators.java:
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@@ -765,7 +771,89 @@ public ValueIn(ByteBuffer buffer) {
@Override
public boolean valueSatisfy(Object value) {
- return candidates.contains(value);
+ return candidates.contains((T) value);
+ }
+
+ @Override
+ public boolean canSkip(IMetadata metadata) {
+ Optional<Statistics<? extends Serializable>> statistics =
+ metadata.getMeasurementStatistics(measurementIndex);
+
+ // All values are null, but candidates do not contain null
+ if ((!statistics.isPresent() || isAllNulls(statistics.get())) &&
!candidates.contains(null)) {
+ return true;
+ }
+
+ // All values are not null, but candidate is one null value
+ if (metadata.hasNullValue(measurementIndex)
+ && candidates.size() == 1
+ && candidates.contains(null)) {
+ return true;
+ }
+
+ if (statistics.isPresent()) {
+ T valuesMin = (T) statistics.get().getMinValue();
+ T valuesMax = (T) statistics.get().getMaxValue();
+ // All values are same
+ if (valuesMin == valuesMax) {
+ for (T val : candidates) {
+ if (valuesMin == val) {
Review Comment:
Fixed.
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