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Catalog typeDocs / exampleComments
REST – LakekeeperLINK[Officially Supported] Rust-native catalog with optimistic locking; Helm chart available for K8s.
REST - UnityLINK[Supported and tested] Unity Catalog (Databricks) with Personal Access Token authentication.
REST – GravitinoLINK[Supported, Yet to be tested] Uses standard Iceberg REST; Gravitino adds multi-cloud routing.
REST – NessieLINK[Supported, Yet to be tested] Time-travel branches/tags; supply nessie.endpoint in destination.json.
REST – PolarisLINK[Supported, Yet to be tested]
Hive MetastoreHive catalog configClassic HMS; good fit for on-prem Hadoop or EMR.
JDBC Catalog (Postgres/MySQL)JDBC catalog sampleStores Iceberg metadata in an RDBMS(Postgres); easiest to spin up locally with Postgres.
AWS Glue CatalogGlue catalog IAM & configBest choice on AWS; lets Athena, EMR, and Redshift query the same tables instantly.
Azure PurviewNot Planned, submit a request
BigLake MetastoreNot Planned, submit a request

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