feat(sql/join): add nested-loop join example #1
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This patch adds a nested-loop `join` operator impl that runs on real `TPC-H` data. The bench runs a join using `Pandas` and `PyTorch` API's and compares the results. To run: ```shell (iree-torch.venv) $ export PYTHONPATH=`pwd`/python:$PYTHONPATH (iree-torch.venv) $ python examples/join.py ```
This patch attempts to lower the `join` operator through the `iree-torch` lowering pipeline(s). We fail on the following error in `torch-mlir` currently. ```text Exception: Lowering TorchScript IR -> Torch Backend IR failed with the following diagnostics: error: operand types should have the same type as the list contained type note: see current operation: %14 = "torch.prim.ListConstruct"(%12, %13) : (!torch.vtensor<[1],si64>, !torch.vtensor<[2],si64>) -> !torch.list<vtensor<[1],si64>> ``` IR can be viewed here: https://gist.github.com/bsarden-rivos/fab295529094243a17182b9f37945c1b
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joinoperator through theiree-torchlowering pipeline(s). We fail on the following error in
torch-mlircurrently.
IR can be viewed here:
https://gist.github.com/bsarden-rivos/fab295529094243a17182b9f37945c1b