Shengkai Fang created FLINK-28723: ------------------------------------- Summary: Support json format to serialize the MapData when its key is not STRING Key: FLINK-28723 URL: https://issues.apache.org/jira/browse/FLINK-28723 Project: Flink Issue Type: Sub-task Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile) Reporter: Shengkai Fang
Currently, the JSON format only supports serializing the Map when its key is STRING. We may convert the key to a JSON string. For example, we can convert the `MAP<ARRAY<INT>, ARRAY<INT>>` to the following string. {code:java} { "[1, 2, 3]": [ 1, 2, 3 ] } {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)