epgif commented on code in PR #9008:
URL: https://github.com/apache/iceberg/pull/9008#discussion_r1570983709


##########
api/src/main/java/org/apache/iceberg/expressions/ExpressionUtil.java:
##########
@@ -564,6 +575,7 @@ private static String sanitizeDate(int days, int today) {
     return "(date)";
   }
 
+  // TODO(epg): `now` is millisecond resolution; shouldn't this be too?

Review Comment:
   Done.



##########
api/src/main/java/org/apache/iceberg/expressions/Literals.java:
##########
@@ -515,6 +548,21 @@ public <T> Literal<T> to(Type type) {
             return (Literal<T>) new TimestampLiteral(timestampMicros);
           }
 
+        case TIMESTAMP_NANO:
+          if (((Types.TimestampNanoType) type).shouldAdjustToUTC()) {
+            long timestampNanos =
+                ChronoUnit.NANOS.between(
+                    EPOCH, OffsetDateTime.parse(value(), 
DateTimeFormatter.ISO_DATE_TIME));
+            return (Literal<T>) new TimestampNanoLiteral(timestampNanos);

Review Comment:
   Done.



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