alamb commented on a change in pull request #1084:
URL: https://github.com/apache/arrow-rs/pull/1084#discussion_r774073239
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File path: arrow/src/compute/kernels/cast.rs
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@@ -1908,6 +1945,14 @@ mod tests {
use crate::{buffer::Buffer, util::display::array_value_to_string};
use num::traits::Pow;
+ #[test]
+ fn test_cast_decimal_to_decimal() {
+ let input_type = DataType::Decimal(20, 3);
+ let output_type = DataType::Decimal(20, 4);
+ assert!(can_cast_types(&input_type, &output_type));
+ // let array = vec![Some(1123456), Some(2123456), Some(3123456), None];
Review comment:
looks like we just need some tests here, and we'll be all set 👍
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