Github user tragicjun commented on a diff in the pull request:
https://github.com/apache/flink/pull/6082#discussion_r193137905
--- Diff:
flink-formats/flink-avro/src/main/java/org/apache/flink/formats/avro/typeutils/AvroRecordClassConverter.java
---
@@ -73,9 +75,37 @@ private AvroRecordClassConverter() {
final GenericTypeInfo<?> genericTypeInfo =
(GenericTypeInfo<?>) extracted;
if (genericTypeInfo.getTypeClass() == Utf8.class) {
return BasicTypeInfo.STRING_TYPE_INFO;
+ } else if (genericTypeInfo.getTypeClass() == Map.class)
{
+ // avro map key is always string
+ return Types.MAP(Types.STRING,
+
convertPrimitiveType(schema.getValueType().getType()));
--- End diff --
if the value is not primitive, say another record, how could we get the
**TypeInformation extracted**? One solution is to get full class name of the
map value type and then use reflection to get the class type of it and pass the
class type to **convert(Class<T> avroClass)**. Any better idea?
---
