2010YOUY01 commented on code in PR #11787:
URL: https://github.com/apache/datafusion/pull/11787#discussion_r1702475189
##########
datafusion/functions/src/string/starts_with.rs:
##########
@@ -52,14 +48,12 @@ impl Default for StartsWithFunc {
impl StartsWithFunc {
pub fn new() -> Self {
- use DataType::*;
Self {
signature: Signature::one_of(
vec![
- Exact(vec![Utf8, Utf8]),
- Exact(vec![Utf8, LargeUtf8]),
- Exact(vec![LargeUtf8, Utf8]),
- Exact(vec![LargeUtf8, LargeUtf8]),
+ Exact(vec![DataType::Utf8View, DataType::Utf8View]),
Review Comment:
```suggestion
// Planner attempts coercion to the target type
starting with the most preferred candidate.
// For example, given input `(Utf8View, Utf8)`, it first
tries coercing to `(Utf8View, Utf8View)`.
// If that fails, it proceeds to `(Utf8, Utf8)`.
Exact(vec![DataType::Utf8View, DataType::Utf8View]),
```
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