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chore: Fix typos in comments #20157

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Merged
Jefffrey merged 1 commit into from
Feb 5, 2026
+2 −2
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chore: Fix typos in comments #20157

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4 changes: 2 additions & 2 deletions datafusion/sql/src/utils.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -374,7 +374,7 @@ pub(crate) fn rewrite_recursive_unnests_bottom_up(
pub const UNNEST_PLACEHOLDER: &str = "__unnest_placeholder";

/*
This is only usedful when used with transform down up
This is only useful when used with transform down up
A full example of how the transformation works:
*/
struct RecursiveUnnestRewriter<'a> {
Expand Down Expand Up @@ -496,7 +496,7 @@ impl TreeNodeRewriter for RecursiveUnnestRewriter<'_> {
type Node = Expr;

/// This downward traversal needs to keep track of:
/// - Whether or not some unnest expr has been visited from the top util the current node
/// - Whether or not some unnest expr has been visited from the top until the current node
/// - If some unnest expr has been visited, maintain a stack of such information, this
/// is used to detect if some recursive unnest expr exists (e.g **unnest(unnest(unnest(3d column))))**
fn f_down(&mut self, expr: Expr) -> Result<Transformed<Expr>> {
Expand Down