feat: Export is_dense public (#8544)

Weijun-H · web-flow · commit cbf8045e2f74 · 2025-10-03T12:22:55.000-04:00
# Which issue does this PR close? - Closes #8503 # Rationale for this change # What changes are included in this PR? # Are these changes tested? # Are there any user-facing changes?
diff --git a/arrow-array/src/array/union_array.rs b/arrow-array/src/array/union_array.rs
@@ -312,7 +312,7 @@ impl UnionArray {
     }
 
     /// Returns whether the `UnionArray` is dense (or sparse if `false`).
-    fn is_dense(&self) -> bool {
+    pub fn is_dense(&self) -> bool {
         match self.data_type() {
             DataType::Union(_, mode) => mode == &UnionMode::Dense,
             _ => unreachable!("Union array's data type is not a union!"),

Original file line number	Diff line number	Diff line change
`@@ -312,7 +312,7 @@ impl UnionArray {`
`312`	`312`	`}`
`313`	`313`
`314`	`314`	/// Returns whether the `UnionArray` is dense (or sparse if `false`).
`315`		`- fn is_dense(&self) -> bool {`
	`315`	`+ pub fn is_dense(&self) -> bool {`
`316`	`316`	`match self.data_type() {`
`317`	`317`	`DataType::Union(_, mode) => mode == &UnionMode::Dense,`
`318`	`318`	`_ => unreachable!("Union array's data type is not a union!"),`