RussellSpitzer commented on code in PR #15977:
URL: https://github.com/apache/iceberg/pull/15977#discussion_r3175290116
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api/src/main/java/org/apache/iceberg/types/Types.java:
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@@ -878,22 +878,25 @@ private NestedField(
this.name = name;
this.type = type;
this.doc = doc;
- this.initialDefault = castDefault(initialDefault, type);
- this.writeDefault = castDefault(writeDefault, type);
+ this.initialDefault = initDefault(isOptional, initialDefault, type);
+ this.writeDefault = initDefault(isOptional, writeDefault, type);
}
- private static Literal<?> castDefault(Literal<?> defaultValue, Type type) {
- if (type.isNestedType() && defaultValue != null) {
+ private static Literal<?> initDefault(boolean isOptional, Literal<?>
defaultValue, Type type) {
+ if (defaultValue == null) {
+ return null;
+ } else if (defaultValue.equals(Literal.ofNull())) {
+ Preconditions.checkArgument(isOptional, "Cannot use null default for
required field");
Review Comment:
Oh we don't have the name, I guess just keep the type for now and let's
followup and improve this to also use the field name.
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