Hi, we'd like to know how disk pages map to disk blocks. In particular, looking at the code it seems that one page can be built on several disk blocks while in the first lines of bufpage.h it is said that "a postgres disk page is an abstraction layered on top of *a* postgres disk block". As a matter of fact, it looks quite reasonable to have more than a block per page. We've also found out that a postgres buffer contains exactly one disk block, but we'd like to understand how pages, blocks and buffers relate to each other.
Thank you very much for your help! regards, alice and lorena ______________________________________________________________________ Yahoo! Cellulari: loghi, suonerie, picture message per il tuo telefonino http://it.yahoo.com/mail_it/foot/?http://it.mobile.yahoo.com/index2002.html ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster