pvary commented on code in PR #17644:
URL: https://github.com/apache/iceberg/pull/17644#discussion_r4002706130
##########
flink/v1.20/flink/src/main/java/org/apache/iceberg/flink/data/AvroWithFlinkSchemaVisitor.java:
##########
@@ -51,12 +55,21 @@ protected LogicalType arrayElementType(LogicalType
arrayType) {
@Override
protected LogicalType mapKeyType(LogicalType mapType) {
Preconditions.checkArgument(isMapType(mapType), "Invalid map: %s is not a
map", mapType);
+ if (mapType instanceof MultisetType) {
+ return ((MultisetType) mapType).getElementType();
+ }
+
return ((MapType) mapType).getKeyType();
}
@Override
protected LogicalType mapValueType(LogicalType mapType) {
Preconditions.checkArgument(isMapType(mapType), "Invalid map: %s is not a
map", mapType);
Review Comment:
Shall we update the error message?
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