Dear all, i was reading the postgres docs concerning the Database Physical Storage. I found that the information present there is not enough to satisfy my curiosity. Are there any documentation out there that describes in more details the Database Physical Storage of potgres ? In the Page Layout details, it is specified that a page is usually 8KB each. Does the page here means a file system block ? Can the page size in postgres be different from the file system block size ? Thanks for any help, Najib. ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend