lidavidm commented on code in PR #36231:
URL: https://github.com/apache/arrow/pull/36231#discussion_r1238755160
##########
cpp/src/arrow/compute/kernels/scalar_arithmetic.cc:
##########
@@ -640,6 +642,17 @@ struct ArithmeticFunction : ScalarFunction {
ReplaceTypes(type, types);
}
}
+
+ if (name_ == "multiply_checked") {
+ // MultiplyChecked requires the same type for both operands, therefore
we can't
+ // easily make kernels for integers other than int64, so we just cast
integers to
+ // int64
+ if ((*types)[0].id() == Type::DURATION &&
is_integer((*types)[1].id())) {
+ ReplaceTypes(int64(), &(*types)[1], 1);
+ } else if ((*types)[1].id() == Type::DURATION &&
is_integer((*types)[0].id())) {
+ ReplaceTypes(int64(), &(*types)[0], 1);
+ }
+ }
Review Comment:
I don't remember any, but it's been quite a while since I worked with Acero.
##########
cpp/src/arrow/compute/kernels/scalar_arithmetic.cc:
##########
@@ -640,6 +642,17 @@ struct ArithmeticFunction : ScalarFunction {
ReplaceTypes(type, types);
}
}
+
+ if (name_ == "multiply_checked") {
+ // MultiplyChecked requires the same type for both operands, therefore
we can't
+ // easily make kernels for integers other than int64, so we just cast
integers to
+ // int64
+ if ((*types)[0].id() == Type::DURATION &&
is_integer((*types)[1].id())) {
+ ReplaceTypes(int64(), &(*types)[1], 1);
+ } else if ((*types)[1].id() == Type::DURATION &&
is_integer((*types)[0].id())) {
+ ReplaceTypes(int64(), &(*types)[0], 1);
+ }
+ }
Review Comment:
I think we can leave it as-is.
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