rtpsw commented on code in PR #14682:
URL: https://github.com/apache/arrow/pull/14682#discussion_r1029175533
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python/pyarrow/src/arrow/python/udf.cc:
##########
@@ -105,21 +167,109 @@ Status RegisterScalarFunction(PyObject* user_function,
ScalarUdfWrapperCallback
}
compute::OutputType output_type(options.output_type);
auto udf_data = std::make_shared<PythonUdf>(
- wrapper, std::make_shared<OwnedRefNoGIL>(user_function),
options.output_type);
+ std::make_shared<OwnedRefNoGIL>(user_function), wrapper,
options.output_type);
compute::ScalarKernel kernel(
compute::KernelSignature::Make(std::move(input_types),
std::move(output_type),
options.arity.is_varargs),
- PythonUdfExec);
+ PythonUdfExec, kernel_init);
kernel.data = std::move(udf_data);
kernel.mem_allocation = compute::MemAllocation::NO_PREALLOCATE;
kernel.null_handling = compute::NullHandling::COMPUTED_NO_PREALLOCATE;
RETURN_NOT_OK(scalar_func->AddKernel(std::move(kernel)));
- auto registry = compute::GetFunctionRegistry();
+ if (registry == NULLPTR) {
+ registry = compute::GetFunctionRegistry();
+ }
RETURN_NOT_OK(registry->AddFunction(std::move(scalar_func)));
return Status::OK();
}
+} // namespace
+
+Status RegisterScalarFunction(PyObject* user_function,
ScalarUdfWrapperCallback wrapper,
+ const ScalarUdfOptions& options,
+ compute::FunctionRegistry* registry) {
+ return RegisterScalarLikeFunction(
+ user_function,
+
PythonScalarUdfKernelInit{std::make_shared<OwnedRefNoGIL>(user_function)},
wrapper,
+ options, registry);
+}
+
+Status RegisterTabularFunction(PyObject* user_function,
ScalarUdfWrapperCallback wrapper,
+ const ScalarUdfOptions& options,
+ compute::FunctionRegistry* registry) {
+ if (options.arity.num_args != 0 || options.arity.is_varargs) {
+ return Status::Invalid("tabular function must have no arguments");
+ }
+ return RegisterScalarLikeFunction(
Review Comment:
I'm not sure what you mean; I don't see `out_type` here.
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