jun-he commented on a change in pull request #1981:
URL: https://github.com/apache/iceberg/pull/1981#discussion_r552936378
##########
File path: api/src/main/java/org/apache/iceberg/transforms/Timestamps.java
##########
@@ -52,12 +52,23 @@ public Integer apply(Long timestampMicros) {
return null;
}
- // discards fractional seconds, not needed for calculation
- OffsetDateTime timestamp = Instant
- .ofEpochSecond(timestampMicros / 1_000_000)
- .atOffset(ZoneOffset.UTC);
-
- return (int) granularity.between(EPOCH, timestamp);
+ if (timestampMicros >= 0) {
+ OffsetDateTime timestamp = Instant
+ .ofEpochSecond(
+ Math.floorDiv(timestampMicros, 1_000_000),
+ Math.floorMod(timestampMicros, 1_000_000) * 1000)
Review comment:
nit: extract `1_000_000` and `1000` to be a constant with meaningful
name or use predefined ones in java library.
##########
File path: api/src/main/java/org/apache/iceberg/transforms/Dates.java
##########
@@ -99,11 +107,24 @@ public boolean satisfiesOrderOf(Transform<?, ?> other) {
if (pred.isUnaryPredicate()) {
return Expressions.predicate(pred.op(), fieldName);
+
} else if (pred.isLiteralPredicate()) {
- return ProjectionUtil.truncateInteger(fieldName,
pred.asLiteralPredicate(), this);
+ UnboundPredicate<Integer> projected =
ProjectionUtil.truncateInteger(fieldName, pred.asLiteralPredicate(), this);
+ if (this != DAY) {
Review comment:
Seems the same logic (`if (condition) {return...} return ...`) appears
multiple times, can it be included inside a method, e.g. just embed it in the
method defined in `ProjectionUtil`?
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