yutannihilation commented on code in PR #498:
URL: https://github.com/apache/sedona-db/pull/498#discussion_r2671318483
##########
rust/sedona-functions/src/st_geomfromwkt.rs:
##########
@@ -147,8 +149,139 @@ fn invoke_scalar(wkt_bytes: &str, builder: &mut
BinaryBuilder) -> Result<()> {
.map_err(|err| DataFusionError::Internal(format!("WKB write error:
{err}")))
}
+/// ST_GeomFromEWKT() UDF implementation
+///
+/// An implementation of EWKT reading using GeoRust's wkt crate.
+pub fn st_geomfromewkt_udf() -> SedonaScalarUDF {
+ let doc = Documentation::builder(
+ DOC_SECTION_OTHER,
+ "Construct a Geometry from EWKT",
+ "ST_GeomFromEWKT (Ewkt: String)",
+ )
+ .with_argument(
+ "EWKT",
+ "string: Extended well-known text representation of the geometry",
+ )
+ .with_sql_example("SELECT ST_GeomFromEWKT('SRID=4326;POINT(40.7128
-74.0060)')")
+ .build();
+
+ SedonaScalarUDF::new(
+ "st_geomfromewkt",
+ vec![Arc::new(STGeoFromEWKT {})],
+ Volatility::Immutable,
+ Some(doc),
+ )
+}
+
+#[derive(Debug)]
+struct STGeoFromEWKT {
+ // TODO
+ // engine: Option<Arc<dyn CrsEngine + Send + Sync>>,
Review Comment:
Oh, thanks. Then, I remove this. I noticed engine is currently unused, but
wondered if this is somehow useful for testing.
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