GreptimeTeam/greptimedb
The open-source observability database. One columnar engine for metrics, logs, and traces, on object storage.
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.
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Latest capture 2026-10-21 10:53
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The open-source observability database. One columnar engine for metrics, logs, and traces, on object storage.
Postgres rewritten in Rust, now faster than Postgres and Clickhouse
DriftDB - An experimental append-only database with built-in time travel. Query any point in history, guaranteed data integrity, and immutable audit trails. Written in Rust.
A lightweight, high-performance embedded key-value database written in Zig, featuring B-tree indexing, Write-Ahead Logging (WAL) for durability, and ACID transactions.
AST-native PostgreSQL toolkit: typed queries to wire protocol, with built-in RLS tenant isolation.
Columnar storage extension for Postgres built as a foreign data wrapper. Check out https://github.com/citusdata/citus for a modernized columnar storage implementation built as a table access method.