I plan to extend over time the part 'Tutorial' by an additional chapter
with an overview about key design decisions and basic features. The
typical audience should consist of persons with limited pre-knowledge in
database systems and some interest in PostgreSQL. In the attachment you
find a patch for the first sub-chapter. Subsequent sub-chapters should
be: MVCC, transactions, VACUUM, backup, replication, ... - mostly with
the focus on the PostgreSQL implementation and not on generic topics
like b-trees.