lidavidm commented on a change in pull request #12378:
URL: https://github.com/apache/arrow/pull/12378#discussion_r802784096
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File path: cpp/src/arrow/compute/kernels/scalar_arithmetic.cc
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@@ -2536,12 +2536,31 @@ void RegisterScalarArithmetic(FunctionRegistry*
registry) {
// ----------------------------------------------------------------------
auto add = MakeArithmeticFunction<Add>("add", &add_doc);
AddDecimalBinaryKernels<Add>("add", add.get());
+
+ // Add add(timestamp, duration) -> timestamp
+ for (auto unit : TimeUnit::values()) {
+ InputType in_type(match::TimestampTypeUnit(unit));
+ auto exec = ScalarBinary<TimestampType, DurationType, TimestampType,
Add>::Exec;
Review comment:
TimestampType and DurationType are both int64_t underneath, is it
possible to reuse the existing Exec method? (i.e. does
`ArithmeticExecFromOp<ScalarBinary, Add>(Type::INT64)` work here?)
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