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sio/csvio: fix missing field output - #7483
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The CSV writer emits "none" for a missing field like the one in
{a:none::(int64|none)}. Emit an empty string instead.
mattnibs
reviewed
Oct 15, 2026
| flags: -f csv | ||
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| input: | | ||
| {none:none::(int64|none)} |
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Maybe add an option none as well?
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| {none:none::(int64|none)} | |
| {none:none::(int64|none)} | |
| {none:none::option(int64)} |
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Busted! An option none still prints as "none" (actually as "none::") because super.Value.Under doesn't deoption. I was going to do that in another PR.
mattnibs
approved these changes
Oct 15, 2026
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The CSV writer emits "none" for a missing field like the one in {a:none::(int64|none)}. Emit an empty string instead.
Fixes #7443.