refactor: improve display formatting for Union#8529
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alamb merged 7 commits intoapache:mainfrom Oct 4, 2025
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Weijun-H
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martin-g
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Oct 2, 2025
| format!("{type_id:?}: {maybe_nullable}{data_type}{metadata_str}") | ||
| }) | ||
| .collect::<Vec<_>>() | ||
| .join(", "); |
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Would it be better to use ; as a separator ?
This way the , used to separate the metadata won't confuse the readers.
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After some investigation, I think we should continue using commas to separate different fields, following the DuckDB SQL style. For metadata, since it is displayed with brackets, it should not be too confusing.
alamb
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Oct 4, 2025
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Which issue does this PR close?
DisplayforDataType#8351Rationale for this change
Support more human readable display in
UnionWhat changes are included in this PR?
Are these changes tested?
Yes
Are there any user-facing changes?
No