Remove BuiltInWindowFunction (LogicalPlans)
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There are actually several related "BuiltInWindowExpr" in physical-expr that need to be cleaned up as well (that are no longer related to BuiltInWindowExprs). We may also be able to remove a level of trait. |
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BuiltInWindowFunctionBuiltInWindowFunction (LogicalPlans)
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@alamb @buraksenn @Omega359 Pretty sure we can now clean up the old window docs, due to the nth_value migration being merged. Lemme see if I can do that really quick |
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Yes, we can -- I think that is tracked by |
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datafusion/expr/src/expr.rs
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| /// | ||
| /// In SQL, you can use: | ||
| /// - Actual window functions ([`WindowUDF`]) | ||
| /// - Noraml aggregate functions ([`AggregateUDF`]) |
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LGTM 👍. Thanks @alamb |
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Nov 14, 2024
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| /// Logical representation of a user-defined window function (UDWF) | ||
| /// A UDWF is different from a UDF in that it is stateful across batches. | ||
| /// Logical representation of a user-defined window function (UDWF). |
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I also threw in some drive by documentation improvements to sweeten the deal 🍯
| aggregate, | ||
| ) | ||
| } | ||
| // TODO: Ordering not supported for Window UDFs yet |
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ORDER BY is already supported as the order_by clause is passed to window_expr_from_aggregate_expr
datafusion/expr/src/expr.rs
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| /// | ||
| /// In SQL, you can use: | ||
| /// - Actual window functions ([`WindowUDF`]) | ||
| /// - Noraml aggregate functions ([`AggregateUDF`]) |
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Thanks @crepererum and @jcsherin for the reviews |
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Sep 23, 2025
* Remove BuiltInWindowFunction * fix docs * Fix typo (cherry picked from commit 75a27a8)
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Oct 2, 2025
* Remove BuiltInWindowFunction * fix docs * Fix typo (cherry picked from commit 75a27a8)
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Which issue does this PR close?
WindowFunctionInterface (remove built in list ofBuiltInWindowFunctions) #8709 🎉!!!nth_valuebuiltIn function to User Defined Window Function #13201Rationale for this change
@buraksen and @jcsherin ported the last window function over, so now we can remove the old BuiltInWindowFunction code
This was so tempting a cleanup that I had to give it a try (and I wanted to do some coding)
What changes are included in this PR?
Changes:
BuiltInWindowFunctionBuiltInWindowFunctionDefinition::BuiltInWindowFunctionAre these changes tested?
Yes, by existing CI