datalake_fdw: Iceberg read/write MVP

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•Last updated Oct 3, 2026

Iceberg lake tables that can be written and read from SQL against a real catalog: contrib/datalake_fdw data path and contrib/datalake_agent. Tracking issue lists the PRs.

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[Tracking] datalake_fdw: Iceberg data path and the metadata agent
apache/cloudberry#2008 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: storage I/O over object storage (S3)
apache/cloudberry#2009 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_agent: the gRPC contract (proto files)
apache/cloudberry#2010 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_agent: service framework (Java)
apache/cloudberry#2011 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: the agent engine client (meta/engine_agent)
apache/cloudberry#2012 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_agent: Iceberg operations by metadata location
apache/cloudberry#2013 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: Builtin catalog
apache/cloudberry#2014 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_agent: Polaris (REST) catalog
apache/cloudberry#2015 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_agent: Hive Metastore catalog
apache/cloudberry#2016 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_agent: Hadoop (filesystem) catalog
apache/cloudberry#2017 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: write path — INSERT to data files and a committed snapshot
apache/cloudberry#2018 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: read path — planned fragments, CustomScan, projection and pruning
apache/cloudberry#2019 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: merge-on-read and DML
apache/cloudberry#2020 · opened on Sep 16, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: NUMERIC/DECIMAL in the Parquet format layer
apache/cloudberry#1988 · opened on Sep 12, 2026 · datalake_fdw: Iceberg read/write MVP
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datalake_fdw: Iceberg name mapping for data files without field ids
apache/cloudberry#1989 · opened on Sep 12, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_fdw: timestamp columns in units other than microseconds
apache/cloudberry#1990 · opened on Sep 12, 2026 · datalake_fdw: Iceberg read/write MVP
datalake_agent: the gRPC contract between the extension and the agent
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#2071 opened Oct 3, 2026 · Updated Oct 3, 2026Draft

Issues