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This thread explains Observability 2.0, a shift from pre-aggregated metrics to storing wide events with all fields, enabling ad-hoc queries at read time. It highlights the urgency for AI agent observability and how GreptimeDB supports this model.
A deep dive into how VictoriaLogs stores logs in a columnar layout, covering ingestion, stream identity, and compression.
F3 is a next-generation open-source data file format that uses embedded WebAssembly decoders for interoperability and extensibility, addressing limitations of legacy formats like Parquet. It is currently a research prototype from a paper published in ACM.
This article explains how TimescaleDB's hypercore engine achieves up to 98% compression for time-series data using columnar storage and specialized algorithms like delta encoding and Gorilla XOR, and contrasts it with PostgreSQL's TOAST.
DeltaX is an Apache-licensed PostgreSQL extension providing compression and columnar storage for time-series data, offering a fast alternative to TimescaleDB or ClickHouse while keeping data in PostgreSQL.
The article reframes columnar storage as an extreme form of database normalization, showing how splitting attributes into position-aligned arrays mirrors normalized tables joined on an implicit ordinal primary key.