ritchie46 commented on a change in pull request #9379:
URL: https://github.com/apache/arrow/pull/9379#discussion_r567402067
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File path: rust/arrow/src/csv/writer.rs
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@@ -76,6 +76,7 @@ use crate::{array::*, util::serialization::lexical_to_string};
const DEFAULT_DATE_FORMAT: &str = "%F";
const DEFAULT_TIME_FORMAT: &str = "%T";
const DEFAULT_TIMESTAMP_FORMAT: &str = "%FT%H:%M:%S.%9f";
+const DEFAULT_DATETIME_FORMAT: &str = "%+"; // ISO 8601 / RFC 3339
date & time format.
Review comment:
Yes, good point. This seems overly expensive indeed.
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