bkietz commented on a change in pull request #9294:
URL: https://github.com/apache/arrow/pull/9294#discussion_r571194770
##########
File path: cpp/src/arrow/compute/kernels/scalar_cast_internal.cc
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@@ -149,17 +149,13 @@ void CastNumberToNumberUnsafe(Type::type in_type,
Type::type out_type, const Dat
// ----------------------------------------------------------------------
void UnpackDictionary(KernelContext* ctx, const ExecBatch& batch, Datum* out) {
- if (out->is_scalar()) {
- KERNEL_ASSIGN_OR_RAISE(*out, ctx,
-
batch[0].scalar_as<DictionaryScalar>().GetEncodedValue());
- return;
- }
+ DCHECK(out->is_array());
DictionaryArray dict_arr(batch[0].array());
const CastOptions& options = checked_cast<const
CastState&>(*ctx->state()).options;
const auto& dict_type = *dict_arr.dictionary()->type();
- if (!dict_type.Equals(options.to_type)) {
+ if (!dict_type.Equals(options.to_type) && !CanCast(dict_type,
*options.to_type)) {
Review comment:
https://issues.apache.org/jira/browse/ARROW-11509
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