Dandandan commented on a change in pull request #9540:
URL: https://github.com/apache/arrow/pull/9540#discussion_r579840099
##########
File path: rust/arrow/src/ffi.rs
##########
@@ -193,11 +193,11 @@ fn to_datatype(format: &str) -> Result<DataType> {
"ttm" => DataType::Time32(TimeUnit::Millisecond),
"ttu" => DataType::Time64(TimeUnit::Microsecond),
"ttn" => DataType::Time64(TimeUnit::Nanosecond),
- _ => {
- return Err(ArrowError::CDataInterface(
- "The datatype \"{}\" is still not supported in Rust
implementation"
- .to_string(),
- ))
+ dt => {
+ return Err(ArrowError::CDataInterface(format!(
+ "The datatype \"{}\" is still not supported in Rust
implementation",
Review comment:
```suggestion
"The datatype \"{}\" is not supported in the Rust
implementation",
```
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