lidavidm commented on a change in pull request #11466:
URL: https://github.com/apache/arrow/pull/11466#discussion_r741081106
##########
File path: cpp/src/arrow/compute/exec/expression.cc
##########
@@ -394,14 +394,13 @@ Result<Expression> BindImpl(Expression expr, const
TypeOrSchema& in,
if (expr.literal()) return expr;
if (auto ref = expr.field_ref()) {
- if (ref->IsNested()) {
- return Status::NotImplemented("nested field references");
- }
-
ARROW_ASSIGN_OR_RAISE(auto path, ref->FindOne(in));
auto bound = *expr.parameter();
- bound.index = path[0];
+ bound.indices.resize(path.indices().size());
+ for (size_t i = 0; i < path.indices().size(); ++i) {
+ bound.indices[i] = path.indices()[i];
+ }
Review comment:
```
/usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/stl_algobase.h:378:46:
error: no type named 'value_type' in
'std::iterator_traits<arrow::internal::StaticVectorImpl<int, 2,
arrow::internal::SmallVectorStorage<int, 2> > >'
typedef typename iterator_traits<_OI>::value_type _ValueTypeO;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
/usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/stl_algobase.h:422:23:
note: in instantiation of function template specialization
'std::__copy_move_a<false, const int *, arrow::internal::StaticVectorImpl<int,
2, arrow::internal::SmallVectorStorage<int, 2> > >' requested here
return _OI(std::__copy_move_a<_IsMove>(std::__niter_base(__first),
^
/usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/stl_algobase.h:454:20:
note: in instantiation of function template specialization
'std::__copy_move_a2<false, __gnu_cxx::__normal_iterator<const int *,
std::vector<int, std::allocator<int> > >,
arrow::internal::StaticVectorImpl<int, 2,
arrow::internal::SmallVectorStorage<int, 2> > >' requested here
return (std::__copy_move_a2<__is_move_iterator<_II>::__value>
^
/home/lidavidm/Code/upstream/arrow-13987/cpp/src/arrow/compute/exec/expression.cc:401:10:
note: in instantiation of function template specialization
'std::copy<__gnu_cxx::__normal_iterator<const int *, std::vector<int,
std::allocator<int> > >, arrow::internal::StaticVectorImpl<int, 2,
arrow::internal::SmallVectorStorage<int, 2> > >' requested here
std::copy(path.indices().begin(), path.indices().end(), bound.indices);
^
/home/lidavidm/Code/upstream/arrow-13987/cpp/src/arrow/compute/exec/expression.cc:424:10:
note: in instantiation of function template specialization
'arrow::compute::(anonymous namespace)::BindImpl<arrow::DataType>' requested
here
return BindImpl(*this, *in.type, in.shape, exec_context);
^
```
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