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new df30f85172 Minor: Clarify usecase for `LogicalPlan::recompute_schema`
(#10443)
df30f85172 is described below
commit df30f85172452eafb8b09767089faf6749970fce
Author: Andrew Lamb <[email protected]>
AuthorDate: Sat May 11 06:33:23 2024 -0400
Minor: Clarify usecase for `LogicalPlan::recompute_schema` (#10443)
---
datafusion/expr/src/logical_plan/plan.rs | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/datafusion/expr/src/logical_plan/plan.rs
b/datafusion/expr/src/logical_plan/plan.rs
index 7dca12f793..9832b69f84 100644
--- a/datafusion/expr/src/logical_plan/plan.rs
+++ b/datafusion/expr/src/logical_plan/plan.rs
@@ -479,6 +479,11 @@ impl LogicalPlan {
/// expressions. For example [`LogicalPlan::Filter`] schema is always the
/// same as its input schema.
///
+ /// This is useful after modifying a plans `Expr`s (or input plans) via
+ /// methods such as [Self::map_children] and [Self::map_expressions].
Unlike
+ /// [Self::with_new_exprs], this method does not require a new set of
+ /// expressions or inputs plans.
+ ///
/// # Return value
/// Returns an error if there is some issue recomputing the schema.
///
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