bkietz commented on a change in pull request #10397:
URL: https://github.com/apache/arrow/pull/10397#discussion_r640917034
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File path: cpp/src/arrow/compute/exec/expression.cc
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@@ -492,9 +448,18 @@ Result<Expression> Expression::Bind(ValueDescr in,
if (literal()) return *this;
if (auto ref = field_ref()) {
- ARROW_ASSIGN_OR_RAISE(auto field, ref->GetOneOrNone(*in.type));
- auto descr = field ? ValueDescr{field->type(), in.shape} :
ValueDescr::Scalar(null());
- return Expression{Parameter{*ref, std::move(descr)}};
+ if (ref->IsNested()) {
+ return Status::NotImplemented("nested field references");
+ }
+
+ ARROW_ASSIGN_OR_RAISE(auto path, ref->FindOne(*in.type));
Review comment:
For now, I've added a hot path for Schema since that already has a hash
table from name -> index
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