milesgranger commented on code in PR #14106:
URL: https://github.com/apache/arrow/pull/14106#discussion_r972979934
##########
cpp/src/arrow/compute/kernels/scalar_cast_numeric.cc:
##########
@@ -769,6 +770,36 @@ std::vector<std::shared_ptr<CastFunction>>
GetNumericCasts() {
return functions;
}
+
+Status CastToExtension(KernelContext* ctx, const ExecSpan& batch, ExecResult*
out) {
+ const CastOptions& options = checked_cast<const
CastState*>(ctx->state())->options;
+ DCHECK(batch[0].is_array());
+ std::shared_ptr<Array> array = batch[0].array.ToArray();
+ std::shared_ptr<Array> result;
+
+ auto out_ty = GetExtensionType("arrow.py_integer_type")->storage_type();
+ RETURN_NOT_OK(Cast(*array, out_ty, options,
+ ctx->exec_context())
+ .Value(&result));
+
+ ExtensionArray extension(options.to_type.GetSharedPtr(), result);
+ out->value = std::move(extension.data());
+ return Status::OK();
+}
Review Comment:
Disregard. Knew as soon as I reached out for help, I'd find a better way. 😆
Found I could just static cast the `options.to_type.type` to get a
`ExtensionType`
(https://github.com/apache/arrow/pull/14106/commits/6c05a1d620dbaea44e2db4520acb16330332df9a)
Apologies for the noise. :)
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