kalamdb/koldstore

Open research project exploring tiered storage for PostgreSQL application tables—keep active rows in Postgres, move history to Parquet, and query both through the original table.

5 stars 1 forks 5 watchers Rust Apache License 2.0

cold-storage database datalake multi-tenant-database object-storage parquet postgresql-extension tiered-storage

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1 Open Issue Need Help Last updated: Aug 13, 2026

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Design: durable data branches for isolated DML, diff, merge, and discard about 1 month ago

enhancement good first issue

kalamdb/koldstore

Open research project exploring tiered storage for PostgreSQL application tables—keep active rows in Postgres, move history to Parquet, and query both through the original table.

Rust

#cold-storage#database#datalake#multi-tenant-database#object-storage#parquet#postgresql-extension#tiered-storage