[WIP] C++ implementation of TPCH query 3#650

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beckernick wants to merge 7 commits intorapidsai:mainfrom

beckernick:q3-cpp

Commits on Nov 9, 2025

WIP q3 cpp
beckernick
committed

Commits on Nov 10, 2025

Commits on Nov 11, 2025

getting incorrect results with one MPI rank, but query finishes. getting msg not ready errors with two ranks
beckernick
committed
fix customer/orders key comment
beckernick
committed

Commits on Nov 13, 2025

still not working, but correct group by keys in the final output
beckernick
committed