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Convert nanos to timstamptz #38016

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Merged
ahmedabu98 merged 1 commit into from
Mar 31, 2026
+5 −2
Merged

Convert nanos to timstamptz #38016

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7 changes: 5 additions & 2 deletions sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/IcebergUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.ZoneOffset;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
Expand Down Expand Up @@ -430,9 +431,11 @@ private static Object getIcebergTimestampValue(Object beamValue, boolean shouldA
// timestamptz
if (shouldAdjustToUtc) {
if (beamValue instanceof java.time.Instant) { // MicrosInstant
OffsetDateTime epoch = java.time.Instant.ofEpochSecond(0).atOffset(ZoneOffset.UTC);
java.time.Instant instant = (java.time.Instant) beamValue;
return DateTimeUtil.timestamptzFromNanos(
TimeUnit.SECONDS.toNanos(instant.getEpochSecond()) + instant.getNano());
long nanosFromEpoch =
TimeUnit.SECONDS.toNanos(instant.getEpochSecond()) + instant.getNano();
return ChronoUnit.NANOS.addTo(epoch, nanosFromEpoch);
} else if (beamValue instanceof LocalDateTime) { // SqlTypes.DATETIME
return OffsetDateTime.of((LocalDateTime) beamValue, ZoneOffset.UTC);
} else if (beamValue instanceof Instant) { // FieldType.DATETIME
Expand Down
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