rok commented on a change in pull request #12136:
URL: https://github.com/apache/arrow/pull/12136#discussion_r791770325
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File path: cpp/src/arrow/compute/kernels/codegen_internal.cc
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@@ -109,6 +109,39 @@ void ReplaceNullWithOtherType(ValueDescr* first, size_t
count) {
}
}
+void ReplaceTemporalTypes(const TimeUnit::type unit, std::vector<ValueDescr>*
descrs) {
+ auto* end = descrs->data() + descrs->size();
+ const std::string* timezone = nullptr;
+
+ for (auto* it = descrs->data(); it != end; it++) {
+ switch (it->type->id()) {
+ case Type::TIMESTAMP: {
+ const auto& ty = checked_cast<const TimestampType&>(*it->type);
+ timezone = &ty.timezone();
+ if (timezone) {
+ it->type = timestamp(unit, *timezone);
+ } else {
+ it->type = timestamp(unit);
+ }
+ continue;
+ }
+ case Type::TIME32:
+ case Type::TIME64:
+ case Type::DURATION: {
+ it->type = duration(unit);
+ continue;
+ }
+ case Type::DATE32:
+ case Type::DATE64: {
+ it->type = timestamp(unit);
Review comment:
Yeah this is for arithmetic purposes.
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