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Deep dives on transaction log processing, Change Data Capture, and the infrastructure that moves data in real time.

Fundamentals·14 min read·Jul 6, 2026

What is Transaction Log Processing (and Why It Matters)

Every database writes a transaction log. Learn what transaction log processing is, how it works, and why it powers modern real-time data pipelines.

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Fundamentals·12 min read

PostgreSQL WAL: How It Works

Learn how PostgreSQL's Write-Ahead Log works, from WAL records and full-page writes to checkpoints, replication slots, and monitoring queries.

PostgreSQL·WAL·DataEngineering

Jul 15, 2026

Fundamentals·9 min read

What is Change Data Capture (CDC)?

Change Data Capture streams database changes to downstream systems in near real time. Learn how CDC works, the three approaches, and when to use each.

DataEngineering·CDC·Streaming

Jul 12, 2026

Fundamentals·8 min read

What is a Transaction Log? WAL, Binlog, and Oplog Explained

Transaction logs power crash recovery, replication, and CDC. Learn how PostgreSQL WAL, MySQL binlog, and MongoDB oplog work and how they differ.

DataEngineering·PostgreSQL·MySQL

Jul 9, 2026

Deploy once. Forget the pipeline exists.

Your data arrives where it needs to be, in order, with delivery guarantees — and your team never thinks about it again.

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