paleolimbot commented on code in PR #8801:
URL: https://github.com/apache/arrow-rs/pull/8801#discussion_r2501443214
##########
parquet-geospatial/src/types.rs:
##########
@@ -0,0 +1,87 @@
+use arrow_schema::{Schema, SchemaBuilder, extension::ExtensionType};
+
+use crate::crs::Crs;
+
+pub struct Geometry {
+ crs: Crs,
+}
+
+impl Geometry {
Review Comment:
It may help to have just one `struct Wkb { crs: Crs, edges: String }` that
implements `ExtensionType`. Then the `try_extension_type::<Wkb>()` below will
parse the edges for us and let us choose geometry or geography for the Parquet
type.
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