Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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None
Description
The VectorKernel class currently has two constructors for kernels that only a KernelSignature and an ArrayKernelExec - one with just the two arugments, and one with default argument values.
Trying to use them results in an ambiguous call error like this:
/home/zagto/Code/arrow/cpp/src/arrow/compute/kernels/vector_run_length_encode.cc: In function 'void arrow::compute::internal::Register
{{VectorRunLengthEncode(arrow::compute::FunctionRegistry*)': }}
/home/zagto/Code/arrow/cpp/src/arrow/compute/kernels/vector_run_length_encode.cc:137:34: error: call of overloaded 'VectorKernel(std::
shared_ptr<arrow::compute::KernelSignature>&, std::function<arrow::Status(arrow::compute::KernelContext*, const arrow::compute::ExecBa
{{tch&, arrow::Datum*)>&)' is ambiguous }}
{{ 137 | VectorKernel kernel(sig, exec); }}
{{ | ^ }}
{{In file included from /home/zagto/Code/arrow/cpp/src/arrow/compute/function.h:27, }}
{{ from /home/zagto/Code/arrow/cpp/src/arrow/compute/api_vector.h:23, }}
{{ from /home/zagto/Code/arrow/cpp/src/arrow/compute/kernels/vector_run_length_encode.cc:1: }}
/home/zagto/Code/arrow/cpp/src/arrow/compute/kernel.h:616:3: note: candidate: 'arrow::compute::VectorKernel::VectorKernel(std::shared_
{{ptr<arrow::compute::KernelSignature>, arrow::compute::ArrayKernelExec, arrow::compute::KernelInit, arrow::compute::VectorFinalize)' }}
{{ 616 | VectorKernel(std::shared_ptr<KernelSignature> sig, ArrayKernelExec exec, }}
{{ | ^~~~~~~~~~~~ }}
/home/zagto/Code/arrow/cpp/src/arrow/compute/kernel.h:607:3: note: candidate: 'arrow::compute::VectorKernel::VectorKernel(std::shared_
{{ptr<arrow::compute::KernelSignature>, arrow::compute::ArrayKernelExec)' }}
{{ 607 | VectorKernel(std::shared_ptr<KernelSignature> sig, ArrayKernelExec exec) }}
| ^~~~~~~~~~~~
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