rdblue commented on code in PR #5601:
URL: https://github.com/apache/iceberg/pull/5601#discussion_r961850449
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api/src/main/java/org/apache/iceberg/transforms/Timestamps.java:
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@@ -27,48 +27,72 @@
import org.apache.iceberg.expressions.Expression;
import org.apache.iceberg.expressions.Expressions;
import org.apache.iceberg.expressions.UnboundPredicate;
+import org.apache.iceberg.relocated.com.google.common.base.Preconditions;
import org.apache.iceberg.types.Type;
import org.apache.iceberg.types.Types;
+import org.apache.iceberg.util.SerializableFunction;
enum Timestamps implements Transform<Long, Integer> {
YEAR(ChronoUnit.YEARS, "year"),
MONTH(ChronoUnit.MONTHS, "month"),
DAY(ChronoUnit.DAYS, "day"),
HOUR(ChronoUnit.HOURS, "hour");
+ static class Apply implements SerializableFunction<Long, Integer> {
+ private final ChronoUnit granularity;
+
+ Apply(ChronoUnit granularity) {
+ this.granularity = granularity;
+ }
+
+ @Override
+ public Integer apply(Long timestampMicros) {
+ if (timestampMicros == null) {
+ return null;
+ }
+
+ if (timestampMicros >= 0) {
+ OffsetDateTime timestamp =
+ Instant.ofEpochSecond(
+ Math.floorDiv(timestampMicros, 1_000_000),
+ Math.floorMod(timestampMicros, 1_000_000) * 1000)
+ .atOffset(ZoneOffset.UTC);
+ return (int) granularity.between(EPOCH, timestamp);
+ } else {
+ // add 1 micro to the value to account for the case where there is
exactly 1 unit between
+ // the
Review Comment:
Fixed.
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