h.b.furuseth@usit.uio.no wrote:

I wrote:

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(...) A fix with a format change would be to put the padding byte in front of the sub-page instead of at the end.

Sounds fine to me. back-mdb only uses even-sized keys with DUPSORT, so this change has no impact on OpenLDAP. And most likely no one else has hit this situation yet otherwise they'd be crashing.

Ignore next paragraph:

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One fix with a format change could be that the data item gets uneven size too, with a padding byte in front of the sub-page.

Because that's repeated as the 2nd alternative after this one:

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The most general way would be to do that in all nodes with uneven- sized key and even-sized data: