BlakeOrth opened a new pull request, #8943:
URL: https://github.com/apache/arrow-rs/pull/8943
# Which issue does this PR close?
This does not fully close, but is an initial component of:
- https://github.com/apache/arrow-rs/issues/8717
# Rationale for this change
To keep PR size digestible, this implements the bi-directional extension
type metadata parsing for Parquet geospatial arrays. An actual array type that
allows users to easily interact with the data can come as a follow-on PR.
# What changes are included in this PR?
- Implements the ExtensionType for Parquet geospatial logical types
- Adds GeoArrow compatible Metadata type to hold geospatial metadata
- Adds basic tests around geospatial metadata serialization/deserialization
- Integrates geospatial logical type parsing into schema extensions
# Are these changes tested?
Yes. Targeted unit tests for the metadata and associated parsing have been
implemented. Higher level tests that show a full round-trip to and from arrays
can be included in the array implementation PR.
# Are there any user-facing changes?
Yes. All new public items have been documented, and no API breaking changes
have been made.
##
cc @alamb @paleolimbot @kylebarron
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