ClickHouse has a solid Iceberg integration. It has an Iceberg table function[0] and Iceberg table engine[1] for interacting with Iceberg data stored in s3, gcs, azure, hadoop etc.

[0] https://clickhouse.com/docs/en/sql-reference/table-functions...

[1] https://clickhouse.com/docs/en/engines/table-engines/integra...