[C++] Potential issue in CompareColumnsToRows on AVX2 platforms when row table contains more than 2^31 rows #43046
Description
Describe the bug, including details regarding any error messages, version, and platform.
See this TODO:
arrow/cpp/src/arrow/compute/row/compare_internal_avx2.cc
Lines 239 to 240 in e635cc2
When the right row ids in irow_right are bigger than 2^31 (0x80000000) - and that's very possible - the AVX2 gather intrinsic may have the same issue as #41813 (comment).
Constructing tests to verify that, and fix followed if necessary.
Component(s)
C++