talatuyarer commented on code in PR #14245:
URL: https://github.com/apache/iceberg/pull/14245#discussion_r2609607212
##########
flink/v2.1/flink/src/main/java/org/apache/iceberg/flink/data/StructRowData.java:
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@@ -186,8 +186,31 @@ private BigDecimal getDecimalInternal(int pos) {
@Override
public TimestampData getTimestamp(int pos, int precision) {
- long timeLong = getLong(pos);
- return TimestampData.fromEpochMillis(timeLong / 1000, (int) (timeLong %
1000) * 1000);
+ if (precision == 9) {
+ // Nanosecond precision: get nanoseconds directly from struct
+ Object longVal = struct.get(pos, Object.class);
+ long nanos;
+ if (longVal instanceof Long) {
+ nanos = (long) longVal;
+ } else if (longVal instanceof OffsetDateTime) {
+ nanos = Duration.between(Instant.EPOCH, (OffsetDateTime)
longVal).toNanos();
+ } else if (longVal instanceof LocalDateTime) {
+ nanos =
+ Duration.between(Instant.EPOCH, ((LocalDateTime)
longVal).atOffset(ZoneOffset.UTC))
+ .toNanos();
+ } else {
+ throw new IllegalStateException(
+ "Unknown type for nanosecond timestamp field. Type name: "
+ + longVal.getClass().getName());
+ }
+ long mills = Math.floorDiv(nanos, 1_000_000);
+ int leftover = Math.floorMod(nanos, 1_000_000);
+ return TimestampData.fromEpochMillis(mills, leftover);
Review Comment:
Aligned with previous calculation style
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