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[Data][Docs] Add reference to parquet predicate pushdown #47881

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Oct 3, 2024
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[Data][Docs] Add reference to parquet predicate pushdown #47881

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Add reference to parquet predicate pushdown
pcmoritz Oct 2, 2024
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Update python/ray/data/dataset.py
pcmoritz Oct 2, 2024
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5 changes: 5 additions & 0 deletions python/ray/data/dataset.py
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Expand Up @@ -995,6 +995,11 @@ def filter(
:meth:`Dataset.map_batches` might be faster. You can implement filter by
dropping rows.

.. tip::
If you are using parquet and the filter is a simple predicate, you might
be able to speed it up by using filter pushdown, see
:ref:`Parquet row pruning <parquet_row_pruning>`.
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Examples:

>>> import ray
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