Re: [dev] Performance regression: fiona.transform much slower since GDAL 3


Hi Sean,

thanks for putting my mail in the right place!

The sqlite version should not be a problem as we have sqlite 3.33

It seems that the performance issue indeed was with initializing the
transformer over and over again. I get much better results with

I will test this fix in our real-life code and get back to you if I run
into troubles.

Thank you!
Best, Stefan

On Fri, 2020-10-09 at 12:24 -0600, Sean Gillies wrote:
Hi Stefan,

I'm cross-posting this over to The dev list is
for project planning and design discussions.

Is it possible you are running into the issue with older sqlite
described in

On Fri, Oct 9, 2020 at 4:53 AM <> wrote:
Hello everyone,

I kindly request your comments/answers to this gis.SE question,
where I
have detailed my issue:

If you do not have an account there, but still know an answer,
contact me directly via e-mail.

Thank you for your attention!

Best, Stefan

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