rdblue commented on code in PR #11904:
URL: https://github.com/apache/iceberg/pull/11904#discussion_r1925907570


##########
parquet/src/main/java/org/apache/iceberg/data/parquet/BaseParquetWriter.java:
##########
@@ -190,33 +210,49 @@ public Optional<ParquetValueWriters.PrimitiveWriter<?>> 
visit(
     }
 
     @Override
-    public Optional<ParquetValueWriters.PrimitiveWriter<?>> visit(
+    public Optional<ParquetValueWriter<?>> visit(
         LogicalTypeAnnotation.DateLogicalTypeAnnotation dateType) {
-      return Optional.of(new DateWriter(desc));
+      ParquetValueWriter<?> dateWriter = dateWriter(desc);
+      if (dateWriter != null) {

Review Comment:
   There is no need to handle nulls here. A writer should always be returned by 
the factory methods.



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