[Data] [2/n] - Update Project operator to use Expressions#57855
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alexeykudinkin merged 1 commit intoray-project:masterfrom Oct 22, 2025
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This pull request is a significant and positive refactoring that updates the Project operator to use a more general and powerful expression-based API. This simplifies the logical plan and enables more robust optimizations, as shown by the rewrite of the projection pushdown rule. The addition of comprehensive tests for the new expression logic is also a great improvement. I've found one critical issue with the count() implementation and a couple of medium-severity suggestions for performance and code style.
python/ray/data/_internal/planner/plan_expression/expression_evaluator.py
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python/ray/data/_internal/planner/plan_expression/expression_evaluator.py
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python/ray/data/_internal/planner/plan_expression/expression_visitors.py
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alexeykudinkin
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Oct 22, 2025
Signed-off-by: Goutam <goutam@anyscale.com>
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[Data] [2/n] - Update Project operator to use Expressions (ray-project#57855)
landscapepainter
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Nov 17, 2025
…t#57855) > Thank you for contributing to Ray! 🚀 > Please review the [Ray Contribution Guide](https://docs.ray.io/en/master/ray-contribute/getting-involved.html) before opening a pull request. ## Description 1. Add visitors for collecting column names from all expressions and renaming names across the tree. 2. Use expressions for rename_columns, with_column, select_columns and remove cols and cols_rename in Project 3. Modify Projection Pushdown to work with combinations of the above operators correctly ## Related issues Closes ray-project#56878, ray-project#57700 ## Additional information > Optional: Add implementation details, API changes, usage examples, screenshots, etc. Signed-off-by: Goutam <goutam@anyscale.com>
Aydin-ab
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Nov 19, 2025
…t#57855) > Thank you for contributing to Ray! 🚀 > Please review the [Ray Contribution Guide](https://docs.ray.io/en/master/ray-contribute/getting-involved.html) before opening a pull request. ## Description 1. Add visitors for collecting column names from all expressions and renaming names across the tree. 2. Use expressions for rename_columns, with_column, select_columns and remove cols and cols_rename in Project 3. Modify Projection Pushdown to work with combinations of the above operators correctly ## Related issues Closes ray-project#56878, ray-project#57700 ## Additional information > Optional: Add implementation details, API changes, usage examples, screenshots, etc. Signed-off-by: Goutam <goutam@anyscale.com> Signed-off-by: Aydin Abiar <aydin@anyscale.com>
Future-Outlier
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Dec 7, 2025
…t#57855) > Thank you for contributing to Ray! 🚀 > Please review the [Ray Contribution Guide](https://docs.ray.io/en/master/ray-contribute/getting-involved.html) before opening a pull request. ## Description 1. Add visitors for collecting column names from all expressions and renaming names across the tree. 2. Use expressions for rename_columns, with_column, select_columns and remove cols and cols_rename in Project 3. Modify Projection Pushdown to work with combinations of the above operators correctly ## Related issues Closes ray-project#56878, ray-project#57700 ## Additional information > Optional: Add implementation details, API changes, usage examples, screenshots, etc. Signed-off-by: Goutam <goutam@anyscale.com> Signed-off-by: Future-Outlier <eric901201@gmail.com>
Blaze-DSP
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Dec 18, 2025
…t#57855) > Thank you for contributing to Ray! 🚀 > Please review the [Ray Contribution Guide](https://docs.ray.io/en/master/ray-contribute/getting-involved.html) before opening a pull request. ## Description 1. Add visitors for collecting column names from all expressions and renaming names across the tree. 2. Use expressions for rename_columns, with_column, select_columns and remove cols and cols_rename in Project 3. Modify Projection Pushdown to work with combinations of the above operators correctly ## Related issues Closes ray-project#56878, ray-project#57700 ## Additional information > Optional: Add implementation details, API changes, usage examples, screenshots, etc. Signed-off-by: Goutam <goutam@anyscale.com>
peterxcli
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Feb 25, 2026
…t#57855) > Thank you for contributing to Ray! 🚀 > Please review the [Ray Contribution Guide](https://docs.ray.io/en/master/ray-contribute/getting-involved.html) before opening a pull request. ## Description 1. Add visitors for collecting column names from all expressions and renaming names across the tree. 2. Use expressions for rename_columns, with_column, select_columns and remove cols and cols_rename in Project 3. Modify Projection Pushdown to work with combinations of the above operators correctly ## Related issues Closes ray-project#56878, ray-project#57700 ## Additional information > Optional: Add implementation details, API changes, usage examples, screenshots, etc. Signed-off-by: Goutam <goutam@anyscale.com> Signed-off-by: peterxcli <peterxcli@gmail.com>
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Related issues
Closes #56878, #57700
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