Michael Renner <michael.ren...@amd.co.at> writes:
> I've written a simple tool to generate traffic on a database [1], which 
> did about 30 TX/inserts per second to a table. Upon inspecting the data 
> in the table, I noticed the expected grouping of tuples which came from 
> a single backend to matching pages [2]. The strange part was that the 
> pages weren't completely filled but the backends seemed to jump 
> arbitrarily from one page to the next [3]. For the table in question 
> this resulted in about 10% wasted space.

Which table would that be?  The trigger-driven updates to "auction",
in particular, would certainly guarantee some amount of "wasted" space.

                        regards, tom lane

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