wgtmac commented on code in PR #47524:
URL: https://github.com/apache/arrow/pull/47524#discussion_r2343308108
##########
cpp/src/arrow/csv/options.h:
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@@ -188,6 +188,12 @@ struct ARROW_EXPORT WriteOptions {
/// Whether to write an initial header line with column names
bool include_header = true;
+ /// \brief Quoting style of header
+ ///
+ /// If `quoting_header` is `QuotingStyle::None`, then only write quotes when
a column
+ /// name contains structural characters. Otherwise, always quote column
names.
+ QuotingStyle quoting_header = QuotingStyle::AllValid;
Review Comment:
I would recommend keeping the same semantics for both header and data. So in
short:
- `None` will never add quotes and throw for control characters.
- `Needed` and `AllValid` always add quotes except for null, as we regard
all header fields as string types.
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