Hi,
There is one more book, PostgreSQL: Introduction and Concepts.
It was available as a PDF, cuz it was a collaboratively "debugged" book by the Pg community. They used to release versions of the PDF after errors are corrected / updated. The PDF is no longer available from them after the book get published with dead tree. The good news is, I have the PDF which I believe to be the one just before the book went pressed. (ie, pretty much IS the book)
I wanted to upload to somewhere in openacs.org but I couldn't find a appropriate place. Perhaps I can hand it to a senior member and put it on this site for the community's benefit? The PDF is 2.55 MB.
Sincerely,