etseidl commented on code in PR #6828:
URL: https://github.com/apache/arrow-rs/pull/6828#discussion_r1868304989
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parquet/src/file/properties.rs:
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@@ -287,15 +287,22 @@ impl WriterProperties {
self.statistics_truncate_length
}
- /// Returns `coerce_types` boolean
+ /// Returns whether `coerce_types` is enabled (defaults to `false`).
///
/// Some Arrow types do not have a corresponding Parquet logical type.
/// Affected Arrow data types include `Date64`, `Timestamp` and `Interval`.
- /// Writers have the option to coerce these into native Parquet types. Type
- /// coercion allows for meaningful representations that do not require
- /// downstream readers to consider the embedded Arrow schema. However, type
+ /// Also, for [`List`] and [`Map`] types, Parquet expects certain schema
elements
Review Comment:
Should most of this verbiage move to `set_coerce_types` on the builder?
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