https://bugs.freedesktop.org/show_bug.cgi?id=54898

Michael Meeks <[email protected]> changed:

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--- Comment #8 from Michael Meeks <[email protected]> ---
> Rainer/Michael: Bernard Nicoulaud (in cc of this bugtracker) sent me an
> email telling me that he was astonished that 3.6.3 was considered as
> enough stable and useable in production whereas there's still this bug.

By production you mean some big enterprise ? they'd want to contract L3 support
to get their bugs fixed to their timeline I imagine.

> I must recognize he's quite right. Indeed, it's not a matter of an error
> message but that some results are wrong and it's easy not to notice it.
> What do you think?

Clearly we need a fix and a unit test so it never comes back; patches very much
appreciated. Until then - I CC Kohei who may have some ideas - it's been a MAB
for nearly a month I guess.

The Pivot code is rather tricky, tangled and there are is no shortage of bugs
that give wrong results in any given version of it for the last many years - we
are slowly moving the bugs around, fixing them - and stopping known ones coming
back with unit tests. Help from anyone doing QA earlier in the cycle to catch
such things earlier is much appreciated.

Expanding our PivotTable unit tests is also not a terribly hard thing to do -
cf.

http://cgit.freedesktop.org/libreoffice/core/tree/sc/qa/unit/ucalc.cxx#n1698

Might be nice if end-users could do that themselves; then again - the request
to extend the calc unit tests fell didn't yield much. We essentially need
complicated scenarios with minimal data (ie. small) test sheets as .ods files,
with verified correct / matching .csv files (one per sheet) that we can drop
into here:

http://cgit.freedesktop.org/libreoffice/core/tree/sc/qa/unit/data/ods
vs.
http://cgit.freedesktop.org/libreoffice/core/tree/sc/qa/unit/data/contentCSV

Perhaps we could do that for pivot-table corner-cases too: there are a lot of
them. Help much appreciated.

Anyhow - sorry for the new bug - no doubt it is a side-effect of fixing another
bug.

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