snuyanzin commented on a change in pull request #17542:
URL: https://github.com/apache/flink/pull/17542#discussion_r735575324



##########
File path: 
flink-formats/flink-parquet/src/main/java/org/apache/flink/formats/parquet/row/ParquetRowDataWriter.java
##########
@@ -126,13 +134,27 @@ private FieldWriter createWriter(LogicalType t, Type 
type) {
                     throw new UnsupportedOperationException("Unsupported type: 
" + type);
             }
         } else {
-            throw new IllegalArgumentException("Unsupported  data type: " + t);
+            GroupType groupType = type.asGroupType();
+            LogicalTypeAnnotation logicalType = 
type.getLogicalTypeAnnotation();
+
+            if (t instanceof ArrayType
+                    && logicalType instanceof 
LogicalTypeAnnotation.ListLogicalTypeAnnotation) {
+                return new ArrayWriter(((ArrayType) t).getElementType(), 
groupType);
+            } else if (t instanceof MapType
+                    && logicalType instanceof 
LogicalTypeAnnotation.MapLogicalTypeAnnotation) {
+                return new MapWriter(
+                        ((MapType) t).getKeyType(), ((MapType) 
t).getValueType(), groupType);
+            } else {
+                return new RowWriter(t, groupType);

Review comment:
       As far as I know there is also MultisetType, should it be treated here 
as Row?




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