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You can use an Apache Hive Metastore as the catalog for your Iceberg tables. You can use this catalog with RisingWave when creating an Iceberg SOURCE, SINK, or CONNECTION (for internal Iceberg tables).
Hive Metastore catalog is currently in the technical preview stage.
For a complete list of all catalog-related parameters, see the main Catalog configuration page.

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Example

To create a sink that uses a Hive Metastore catalog, set catalog.type to 'hive' and provide the catalog.uri for your metastore service. 
CREATE SINK my_hive_sink FROM my_mv WITH (
    connector = 'iceberg',
    type = 'upsert',
    primary_key = 'id',
    catalog.type = 'hive',
    catalog.uri = 'thrift://hive-metastore:9083',
    warehouse.path = 's3://my-bucket/warehouse/',
    s3.region = 'us-west-2',
    s3.access.key = '...',
    s3.secret.key = '...',
    database.name = 'my_db',
    table.name = 'my_table'
);