Don't realise lazy coords in netcdf save. #4397
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pp-mo
commented
Nov 3, 2021
pp-mo
commented
Nov 3, 2021
pp-mo
commented
Nov 3, 2021
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🚀 Pull Request
Description
Performance testing revealed that the recent changes to stream all lazy data in netcdf saves didn't quite fix the problem of realising lazy coordinates, as intended
I.E. nc-save is still loading all lazy aux-coords into memory.
So this fixes that, and adds a test to ensure the behaviour.
Consult Iris pull request check list