Room: PGDay at Hilton
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B-Trees are probably the most important access structures in databases and file systems, and everyone knows basic ideas about how B-Tree work. But after reading a few white papers about this topic it turns out that these "basics" are about 40 years old. Over the years so many techniques were proposed in order to improve efficiency in one cases, add functionality in others or even embrace new types of hardware.
In this talk, heavily inspired by Goetz Graefes articles, we will go through the most interesting of such techniques, see why they are so cool, what kind of use cases they address and how many of them did land in PostgreSQL or other databases.
The following slides have been made available for this session: