paleolimbot commented on code in PR #241:
URL: https://github.com/apache/sedona-db/pull/241#discussion_r2465803431
##########
c/sedona-geos/src/st_buffer.rs:
##########
@@ -54,50 +67,73 @@ impl SedonaScalarKernel for STBuffer {
arg_types: &[SedonaType],
args: &[ColumnarValue],
) -> Result<ColumnarValue> {
- // Default params
- let params_builder = BufferParams::builder();
+ invoke_batch_impl(arg_types, args)
+ }
+}
- let params = params_builder
- .build()
- .map_err(|e| DataFusionError::External(Box::new(e)))?;
-
- // Extract the constant scalar value before looping over the input
geometries
- let distance: Option<f64>;
- let arg1 = args[1].cast_to(&DataType::Float64, None)?;
- if let ColumnarValue::Scalar(scalar_arg) = &arg1 {
- if scalar_arg.is_null() {
- distance = None;
- } else {
- distance = Some(f64::try_from(scalar_arg.clone())?);
- }
- } else {
- return Err(DataFusionError::Execution(format!(
- "Invalid distance: {:?}",
- args[1]
- )));
- }
+pub fn st_buffer_style_impl() -> ScalarKernelRef {
+ Arc::new(STBufferStyle {})
+}
+#[derive(Debug)]
+struct STBufferStyle {}
Review Comment:
It's a great point that we could use an optional matcher...I kind of like
the one kernel per combination of arguments but if the other way can be done
cleanly it's OK too.
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