Heikki Linnakangas <[EMAIL PROTECTED]> writes:
>> Hmm. There seems to be something wrong in the free space calculation in 
>> the algorithm for choosing the right split location. I'll dig deeper, 
>> unless someone beats me to it..

> I think I found it. The page splitting code didn't take into account 
> that when the new item is the first one on the right page, it also 
> becomes the high key of the left page. The fact that this test case 
> triggered it in 32 bit machines and not on 64 bit machines was a 
> coincidence.

> Patch attached.

Patch applied.  I tried Joe's example with the maximum and minimum
possible fillfactors, and saw no failure, which may or may not prove
a lot.  Are you still concerned about the PageGetFreeSpace issue?

                        regards, tom lane

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