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  1. Apache Arrow
  2. ARROW-7314

[Python] Compiler warning in pyarrow

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      Saw this while building a wheel locally

      -- Running cmake --build for pyarrow
      cmake --build . --config release -- -j3
      [23/24] Building CXX object CMakeFiles/lib.dir/lib.cpp.o
      lib.cpp: In function ‘PyObject* __pyx_pf_7pyarrow_3lib_90union(PyObject*, PyObject*, PyObject*, PyObject*)’:
      lib.cpp:37184:29: warning: comparison of integer expressions of different signedness: ‘Py_ssize_t’ {aka ‘long int’} and ‘std::vector<std::shared_ptr<arrow::Field> >::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
           __pyx_t_2 = ((__pyx_t_6 != __pyx_v_c_fields.size()) != 0);
                         ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
      

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            jorisvandenbossche Joris Van den Bossche Assign to me
            npr Neal Richardson
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