lidavidm commented on a change in pull request #11466:
URL: https://github.com/apache/arrow/pull/11466#discussion_r741076570
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File path: cpp/src/arrow/compute/exec/expression.cc
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@@ -512,7 +511,31 @@ Result<Datum> ExecuteScalarExpression(const Expression&
expr, const ExecBatch& i
return MakeNullScalar(null());
}
- const Datum& field = input[param->index];
+ Datum field = input[param->indices[0]];
+ for (auto it = param->indices.begin() + 1; it != param->indices.end();
++it) {
Review comment:
It skips the first index and I don't think it'd be clearer overall to
avoid the explicit iterator.
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