[python] support chunk shuffle for append table#8064
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Hi @steFaiz Thanks for the contribution! Maybe just implementing shuffle in Pytorch Paimon Dataset in this PR? And document it. |
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Purpose
This PR will close: #8010
I tested a data-evolution table of 100,000,000 records, several structured columns and a blob column.
The result is as below:
I directly test reading tables on dfs, it costs a lot to plan i.e. generate 1 million DataSplits and shuffle them. This is because generating 1 million objects in Python is heavy. This will be completed within several hundred of millisecond is Java.
Next step I'll try to add shuffle and buffered shuffle for Pytorch Paimon Dataset.
Tests
See Unit Tests