stevenzwu commented on code in PR #13699:
URL: https://github.com/apache/iceberg/pull/13699#discussion_r2283621660
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arrow/src/main/java/org/apache/iceberg/arrow/ArrowSchemaUtil.java:
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@@ -51,94 +54,134 @@ private ArrowSchemaUtil() {}
public static Schema convert(final org.apache.iceberg.Schema schema) {
ImmutableList.Builder<Field> fields = ImmutableList.builder();
- for (NestedField f : schema.columns()) {
- fields.add(convert(f));
+ for (NestedField field : schema.columns()) {
Review Comment:
nit: Why not call `TypeUtil.visit` on the schema directly like other
visitors? it essentially pushes the for loop inside the visitor, which is
needed for nested struct anyway.
e.g. Spark
```
public static StructType convert(Schema schema) {
return (StructType) TypeUtil.visit(schema, new TypeToSparkType());
}
```
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