From a1ffa283be2302c7e744a38407be21f83d504b8a Mon Sep 17 00:00:00 2001
From: Kyle Barron <kyle@developmentseed.org>
Date: Mon, 25 Nov 2024 16:05:09 -0500
Subject: [PATCH] Unknown type native array

---
 rust/geoarrow/src/array/mod.rs           |  1 +
 rust/geoarrow/src/array/unknown/array.rs | 14 ++++++++++++++
 rust/geoarrow/src/array/unknown/mod.rs   |  1 +
 rust/geoarrow/src/datatypes.rs           |  4 ++++
 4 files changed, 20 insertions(+)
 create mode 100644 rust/geoarrow/src/array/unknown/array.rs
 create mode 100644 rust/geoarrow/src/array/unknown/mod.rs

diff --git a/rust/geoarrow/src/array/mod.rs b/rust/geoarrow/src/array/mod.rs
index adc3e8e5..0f6ed35d 100644
--- a/rust/geoarrow/src/array/mod.rs
+++ b/rust/geoarrow/src/array/mod.rs
@@ -40,6 +40,7 @@ pub(crate) mod offset_builder;
 pub(crate) mod point;
 pub(crate) mod polygon;
 pub(crate) mod rect;
+pub(crate) mod unknown;
 pub(crate) mod util;
 pub(crate) mod wkt;
 
diff --git a/rust/geoarrow/src/array/unknown/array.rs b/rust/geoarrow/src/array/unknown/array.rs
new file mode 100644
index 00000000..0592e77b
--- /dev/null
+++ b/rust/geoarrow/src/array/unknown/array.rs
@@ -0,0 +1,14 @@
+use std::sync::Arc;
+
+use crate::array::metadata::ArrayMetadata;
+use crate::array::MixedGeometryArray;
+use crate::datatypes::NativeType;
+
+pub struct UnknownGeometryArray {
+    data_type: NativeType,
+
+    pub(crate) metadata: Arc<ArrayMetadata>,
+
+    xy: MixedGeometryArray,
+    xyz: MixedGeometryArray,
+}
diff --git a/rust/geoarrow/src/array/unknown/mod.rs b/rust/geoarrow/src/array/unknown/mod.rs
new file mode 100644
index 00000000..8be78299
--- /dev/null
+++ b/rust/geoarrow/src/array/unknown/mod.rs
@@ -0,0 +1 @@
+pub(crate) mod array;
diff --git a/rust/geoarrow/src/datatypes.rs b/rust/geoarrow/src/datatypes.rs
index a7969a7b..8d25441d 100644
--- a/rust/geoarrow/src/datatypes.rs
+++ b/rust/geoarrow/src/datatypes.rs
@@ -127,6 +127,10 @@ pub enum NativeType {
     /// Represents a [RectArray][crate::array::RectArray] or
     /// [ChunkedRectArray][crate::chunked_array::ChunkedRectArray].
     Rect(Dimension),
+
+    /// Represents a [UnknownGeometryArray][crate::array::UnknownGeometryArray] or
+    /// [ChunkedUnknownGeometryArray][crate::chunked_array::ChunkedUnknownGeometryArray].
+    Unknown(CoordType),
 }
 
 /// A type enum representing "serialized" GeoArrow geometry types.