Cryptic error messages with too long filenames on Windows about tiledb HOT 4 OPEN

@teo-tsirpanis Can you take a look? I know you've looked into long filenames before.

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@rouault can you try changing the path to filename = "z:\\\\" + ('X' * 190)? I suspect that our URI handling logic thought the filename was a relative path, and something went wrong in the meantime.

A prerequisite to enable support for long paths is to unify the path handling logic and remove the Windows-specific code, using something like https://uriparser.github.io/ for all platforms. It's not very hard to do but there will inevitably be behavior breaking changes in edge cases (see #4921 (comment) for a recently noticed difference between platforms).

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can you try changing the path to filename = "z:\\\\" + ('X' * 190)?

I've tried that (and \\ also), and same error message

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@rouault We are going to figure out/implement the right fix ASAP. Thanks for reporting the issue!

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