alamb commented on code in PR #6441:
URL: https://github.com/apache/arrow-rs/pull/6441#discussion_r1773677323
##########
arrow-schema/src/lib.rs:
##########
@@ -42,6 +73,56 @@ pub struct SortOptions {
pub nulls_first: bool,
}
+impl Display for SortOptions {
+ fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ if self.descending {
+ write!(f, "DESC")?;
+ } else {
+ write!(f, "ASC")?;
+ }
+ if self.nulls_first {
+ write!(f, " NULLS FIRST")?;
+ } else {
+ write!(f, " NULLS LAST")?;
+ }
+ Ok(())
+ }
+}
+
+impl SortOptions {
+ /// Create a new `SortOptions` struct
+ pub fn new(descending: bool, nulls_first: bool) -> Self {
+ Self {
+ descending,
+ nulls_first,
+ }
+ }
+
+ /// Set this sort options to sort in descending order
+ pub fn desc(mut self) -> Self {
+ self.descending = true;
+ self
+ }
+
+ /// Set this sort options to sort in ascending order
+ pub fn asc(mut self) -> Self {
+ self.descending = false;
+ self
+ }
+
+ /// Set this sort options to sort descending if argument is true
+ pub fn with_descending(mut self, descending: bool) -> Self {
+ self.descending = descending;
+ self
+ }
+
+ /// Set this sort options to sort nulls first if argument is true
+ pub fn with_nulls_first(mut self, nulls_first: bool) -> Self {
Review Comment:
it is a good idea -- I will add it
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