[Feature Request]: Map Type supported in the JsonToRow Transformer

[DanielMorales9]

What would you like to happen?

I am currently running workloads that ingest data into Iceberg tables, where some nested fields are stored as Map types. We found this approach offers better read performance compared to using simple JSON strings. However, as I consider migrating to Apache Beam, I noticed that the JsonToRow transformation does not support deserializing Map types from JSON data. Is there a way to enable this functionality?

Issue Priority

Priority: 2 (default / most feature requests should be filed as P2)

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