mbrobbel opened a new pull request, #5821:
URL: https://github.com/apache/arrow-rs/pull/5821
# Rationale for this change
I want to add support to the `parquet` crate, so that
[parquet::arrow::arrow_to_parquet_schema](https://docs.rs/parquet/latest/parquet/arrow/fn.arrow_to_parquet_schema.html)
and
[parquet::arrow::parquet_to_arrow_schema](https://docs.rs/parquet/latest/parquet/arrow/fn.parquet_to_arrow_schema.html)
can roundtrip the canonical [`uuid` extension
type](https://arrow.apache.org/docs/dev/format/CanonicalExtensions.html#uuid).
It seems the `PrimitiveTypeBuilder` was missing a length (16) check for the
`uuid` logical type. This PR adds the check, following the pattern used for
other logical types that have a length requirement.
# What changes are included in this PR?
Adds a check for the length of a `PhysicalType::FIXED_LEN_BYTE_ARRAY` when
it's annotated with `LogicalType::Uuid`.
# Are there any user-facing changes?
The builder now returns an error if the length is not 16 when trying to
annotate a `PhysicalType::FIXED_LEN_BYTE_ARRAY` with `LogicalType::Uuid`.
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