alamb commented on code in PR #11962:
URL: https://github.com/apache/datafusion/pull/11962#discussion_r1717211609
##########
datafusion/functions/src/string/repeat.rs:
##########
@@ -87,18 +95,35 @@ fn repeat<T: OffsetSizeTrait>(args: &[ArrayRef]) ->
Result<ArrayRef> {
let result = string_array
.iter()
.zip(number_array.iter())
- .map(|(string, number)| match (string, number) {
- (Some(string), Some(number)) if number >= 0 => {
- Some(string.repeat(number as usize))
- }
- (Some(_), Some(_)) => Some("".to_string()),
- _ => None,
- })
+ .map(|(string, number)| repeat_common(string, number))
.collect::<GenericStringArray<T>>();
Ok(Arc::new(result) as ArrayRef)
}
+fn repeat_utf8view(args: &[ArrayRef]) -> Result<ArrayRef> {
+ let string_view_array = as_string_view_array(&args[0])?;
+ let number_array = as_int64_array(&args[1])?;
+
+ let result = string_view_array
+ .iter()
+ .zip(number_array.iter())
+ .map(|(string, number)| repeat_common(string, number))
+ .collect::<StringArray>();
+
+ Ok(Arc::new(result) as ArrayRef)
+}
+
+fn repeat_common(string: Option<&str>, number: Option<i64>) -> Option<String> {
Review Comment:
Thank you -- I filed https://github.com/apache/datafusion/issues/11990 to
track the idea
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