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Re: Review for: MDEV-26938 Support descending indexes internally in InnoDB (server part)


Hi, Sergey!

Yes, that's basically how I fixed it. But only in key_rec_cmp(),
key_cmp() changes somehow weren't needed. Perhaps they'll be needed for
range optimizer though.

Please, use preview-10.8-MDEV-26938-desc-indexes for your range
optimizer work.

On Dec 11, Sergey Petrunia wrote:
> On Tue, Dec 07, 2021 at 07:01:45PM +0300, Sergey Petrunia wrote:
> > == Issue #1: ordered index scan is not handled in ha_partition ==
> I've hit this again when trying to get range optmizer to work. Please find the
> patch below. It follows MySQL-8's approach.
VP of MariaDB Server Engineering
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