alamb commented on code in PR #15104:
URL: https://github.com/apache/datafusion/pull/15104#discussion_r1986315228
##########
datafusion/core/tests/dataframe/mod.rs:
##########
@@ -5673,3 +5673,43 @@ async fn test_fill_null_all_columns() -> Result<()> {
assert_batches_sorted_eq!(expected, &results);
Ok(())
}
+
+#[tokio::test]
+async fn test_sql_support_sql_to_view_types() -> Result<()> {
Review Comment:
Instead of adding rust based tests, could you please make these sqllogictest
based instead? sqllogictest is easier to maintain and run
The instructions are here
https://github.com/apache/datafusion/tree/main/datafusion/sqllogictest
Perhaps as a new test in
https://github.com/apache/datafusion/blob/main/datafusion/sqllogictest/test_files/ddl.slt
##########
datafusion/common/src/config.rs:
##########
@@ -252,6 +252,11 @@ config_namespace! {
/// string length and thus DataFusion can not enforce such limits.
pub support_varchar_with_length: bool, default = true
+ /// If true, permit `VARCHAR` default convert to `Utf8View` in the
logical plan.
+ /// If false, `VARCHAR` will be converted to `Utf8` in the logical
plan.
+ /// Default is false.
+ pub support_varchar_to_view_types: bool, default = false
Review Comment:
I recommend naming this slightly differently to make it clearer what it is
doing
```suggestion
/// If true, `VARCHAR` is mapped to `Utf8View` during SQL planning.
/// If false, `VARCHAR` is mappped to `Utf8` during SQL planning.
/// Default is false.
pub default_varchar_views: bool, default = false
```
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