viirya commented on code in PR #3502:
URL: https://github.com/apache/arrow-rs/pull/3502#discussion_r1068496667
##########
arrow-string/src/like.rs:
##########
@@ -533,6 +626,111 @@ where
Ok(BooleanArray::from(data))
}
+/// Perform SQL `STARTSWITH(left, right)` operation on [`StringArray`] /
[`LargeStringArray`].
+pub fn starts_with_utf8<OffsetSize: OffsetSizeTrait>(
+ left: &GenericStringArray<OffsetSize>,
+ right: &GenericStringArray<OffsetSize>,
+) -> Result<BooleanArray, ArrowError> {
+ starts_with(left, right)
+}
+
+#[inline]
+fn starts_with<'a, S: ArrayAccessor<Item = &'a str>>(
+ left: S,
+ right: S,
+) -> Result<BooleanArray, ArrowError> {
+ compare_op(left, right, |l, r| l.starts_with(r))
+}
+
+#[inline]
+fn starts_with_scalar<'a, L: ArrayAccessor<Item = &'a str>>(
+ left: L,
+ right: &str,
+) -> Result<BooleanArray, ArrowError> {
+ compare_op_scalar(left, |item| item.starts_with(right))
+}
+
+/// Perform SQL `STARTSWITH(left, right)` operation on [`StringArray`] /
+/// [`LargeStringArray`] and a scalar.
+///
+/// See the documentation on [`like_utf8`] for more details.
Review Comment:
`starts_with_utf8` doesn't have this `See ...`. Does
`starts_with_utf8_scalar` need it?
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