WIP docs(python): Add expression composability to PySpark comparison #21473
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ritchie46
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Feb 26, 2025
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| In PySpark however this is not allowed, as `shift`/`lag` is not a scalar (i.e. elementwise) |
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I believe spark only allows reductions (looking at the code example you provided).
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| In PySpark however this is not allowed, as `shift`/`lag` is not a scalar (i.e. elementwise) | |
| In PySpark however this is not allowed, as `shift`/`lag` is not a scalar (i.e. reduction) |
ritchie46
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Feb 26, 2025
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| ### Example 3: Composing expressions | ||
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| Polars allow you compose expressions quite liberally. For example, if you want to find the rolling |
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Writing Narwhals has really made me appreciate how good Polars and its API is 😄 🙌
EDIT: checking this, will update shortly