xudong963 commented on code in PR #16290:
URL: https://github.com/apache/datafusion/pull/16290#discussion_r2139721916
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datafusion/common/src/config.rs:
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@@ -264,6 +264,11 @@ config_namespace! {
/// Default is false.
pub map_varchar_to_utf8view: bool, default = true
+ /// If true, `CHAR` and `Text` and `String` is mapped to `Utf8View`
during SQL planning.
+ /// If false, `CHAR` and `Text` and `String` is mapped to `Utf8`
during SQL planning.
+ /// Default is true.
+ pub map_char_to_utf8view: bool, default = true
+
Review Comment:
How about:
```
/// If true, string types (VARCHAR, CHAR, Text, and String) are mapped to
`Utf8View` during SQL planning.
/// If false, they are mapped to `Utf8`.
/// Default is true.
pub map_string_types_to_utf8view: bool, default = true
```
Also cc @alamb
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