huaxingao commented on code in PR #11419:
URL: https://github.com/apache/iceberg/pull/11419#discussion_r1836006381
##########
core/src/main/java/org/apache/iceberg/schema/UnionByNameVisitor.java:
##########
@@ -163,8 +164,7 @@ private void updateColumn(Types.NestedField field,
Types.NestedField existingFie
String fullName = partnerSchema.findColumnName(existingField.fieldId());
boolean needsOptionalUpdate = field.isOptional() &&
existingField.isRequired();
- boolean needsTypeUpdate =
- field.type().isPrimitiveType() &&
!field.type().equals(existingField.type());
+ boolean needsTypeUpdate = !compatibleType(field.type(),
existingField.type());
Review Comment:
Do we also need the `field.type().isPrimitiveType()` here?
```
boolean needsTypeUpdate = field.type().isPrimitiveType() &&
!compatibleType(field.type(), existingField.type());
```
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