libenchao commented on a change in pull request #13634:
URL: https://github.com/apache/flink/pull/13634#discussion_r509839080
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File path:
flink-formats/flink-avro/src/main/java/org/apache/flink/formats/avro/AvroToRowDataConverters.java
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@@ -178,7 +178,7 @@ private static AvroToRowDataConverter
createArrayConverter(ArrayType arrayType)
private static AvroToRowDataConverter createMapConverter(LogicalType
type) {
final AvroToRowDataConverter keyConverter =
createConverter(DataTypes.STRING().getLogicalType());
Review comment:
key can also be `null`?
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