XiangpengHao commented on code in PR #15827:
URL: https://github.com/apache/datafusion/pull/15827#discussion_r2056278172
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datafusion/functions-aggregate/src/min_max.rs:
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@@ -1854,9 +1866,31 @@ mod tests {
#[test]
fn test_get_min_max_return_type_coerce_dictionary() -> Result<()> {
let data_type =
- DataType::Dictionary(Box::new(DataType::Utf8),
Box::new(DataType::Int32));
+ DataType::Dictionary(Box::new(DataType::Int32),
Box::new(DataType::Utf8));
Review Comment:
I don't think Dict<Utf8, Int32> is a valid dictionary type, so I swapped the
key and value. Maybe we should do something to only allow
`ArrowDictionaryKeyType` as the key type, but it's not obvious how to enforce
it with the current enum
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