How to improve DuckDB performance on Parquet

Wed, 22 Jan 2025 00:00:00 +0000

Last week, we ran ClickBench on Postgres and ranked in the top 10. We showed that Postgres can be extended with pg_mooncake to support serious analytics workloads.

In the announcement, we got a lot of questions on how pg_mooncake outperforms DuckDB on Parquet files even though internally, it embeds DuckDB in Postgres and stores data in Parquet format.

See also the discussion on X / Twitter.

The best part: pg_mooncake does not modify DuckDB at all…

Clickbench says Postgres is a great analytics database

Tue, 14 Jan 2025 00:00:00 +0000

TL;DR: We spent a few months optimizing PostgreSQL and made it to the Top 10 on ClickBench, a benchmark typically dominated by specialized analytics databases.

What’s more, all compute is within Postgres, and all tables are managed directly by PostgreSQL—it’s not a simple wrapper. This is the story of pg_mooncake.

What Is ClickBench?

ClickBench is the definitive benchmark for real-time analytics databases, originally designed to showcase the performance of ClickHouse. It evaluates databases on their ability to handle real-world analytics workloads, including high-volume table scans and complex aggregations.

benchmark on Mooncake

How to improve DuckDB performance on Parquet

Clickbench says Postgres is a great analytics database

What Is ClickBench?