====== Heikki Linnakangas ======

Heikki is a long-time PostgreSQL developer and committer. He has worked
on many parts of PostgreSQL backend, authoring features such as
Two-Phase Commit and the new Free Space Map implementation in PostgreSQL
8.4.

Heikki has been employed by EnterpriseDB since 2006.

===== Welcome To WAL =====

An introduction to PostgreSQL Write-Ahead-Log. What is the Write-Ahead-Log? How does WAL recovery work? What does its internal structure look like?


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