pg_lake: Postgres as a lakehouse | POSETTE: An Event for Postgres 2026
pg_lake, an open-source extension turning Postgres into a lakehouse, now sits at the core of Snowflake's Postgres service.
“pg_lake essentially brings this technology into Postgres.”
Marco Slot introduced pg_lake, an Apache-licensed Postgres extension (announced November) that connects Postgres to data lakes via Iceberg and Parquet, delegating analytical queries to DuckDB for speed. Originally built at Crunchy Data, which Snowflake acquired, pg_lake became open source and a core part of Snowflake's Postgres service. It's a notable data-infrastructure development but carries limited direct AI-industry signal.