fix compilation lazy + string (#2914)

pola-rs · Mar 16, 2022 · 43f7e39 · 43f7e39
1 parent f071601
commit 43f7e39
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/polars/polars-lazy/src/dsl/string.rs b/polars/polars-lazy/src/dsl/string.rs
@@ -86,6 +86,7 @@ impl StringNameSpace {
     }
 
     /// Split the string by a substring.
+    // Split exactly `n` times by a given substring. The resulting dtype is `List<Utf8>`.
     pub fn split(self, by: &str) -> Expr {
         let by = by.to_string();
 
@@ -110,6 +111,8 @@ impl StringNameSpace {
             .with_fmt("str.split")
     }
 
+    #[cfg(feature = "dtype-struct")]
+    // Split exactly `n` times by a given substring. The resulting dtype is [`DataType::Struct`].
     pub fn split_exact(self, by: &str, n: usize) -> Expr {
         let by = by.to_string();
 
@@ -159,6 +162,9 @@ impl StringNameSpace {
             .with_fmt("str.split_exact")
     }
 
+    #[cfg(feature = "dtype-struct")]
+    // Split exactly `n` times by a given substring and keep the substring.
+    // The resulting dtype is [`DataType::Struct`].
     pub fn split_exact_inclusive(self, by: &str, n: usize) -> Expr {
         let by = by.to_string();
 
@@ -208,7 +214,8 @@ impl StringNameSpace {
             .with_fmt("str.split_exact")
     }
 
-    /// Split the string by a substring.
+    /// Split the string by a substring and keep the substring.
+    // Split exactly `n` times by a given substring. The resulting dtype is `List<Utf8>`.
     pub fn split_inclusive(self, by: &str) -> Expr {
         let by = by.to_string();