alamb commented on code in PR #18360:
URL: https://github.com/apache/datafusion/pull/18360#discussion_r2504036359
##########
datafusion/functions/src/datetime/date_trunc.rs:
##########
@@ -493,6 +515,21 @@ fn general_date_trunc_array_fine_granularity<T:
ArrowTimestampType>(
}
}
+/// Applies the unary operation in place if possible, or cloning the array if
not
+fn try_unary_mut_or_clone<F>(
+ array: PrimitiveArray<Int64Type>,
+ op: F,
+) -> Result<PrimitiveArray<Int64Type>>
+where
+ F: Fn(i64) -> Result<i64>,
Review Comment:
- I filed https://github.com/apache/arrow-rs/issues/8808 to track this idea
-
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