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Re: Regression test fails v9.2.4

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>> [regression tests have different plans or row orderings]

>> It seems that the problem only occurs when configuring the make
>> with these settings :
>> 
>> --with-libraries=/lib64 --with-blocksize=2 --with-wal-blocksize=2

>> is this problem common, i.e. the expected results files need to
>> be changed ... ?

>I don't find it too surprising that a different page size could
>cause different plans to be chosen or different row orderings. 
>After verifying that the differences are benign, you could add
>alternative "expected" files for your build environment.

>I can't help being a little curious why you are overriding these
>defaults.

Thanks Kevin, we made the changes for query performance reasons. Our schema is such that the changes above make enough of an impact to make it worthwhile.

I think we're now looking at a two-phase validation process; an initial regression test on any new version we take then a further check using our settings. I guess it's actually more useful that we must now inspect the results since it might help us to squeeze even more performance boosts out of Postgresql.

All the best, John



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