liukun4515 commented on a change in pull request #1603:
URL: https://github.com/apache/arrow-datafusion/pull/1603#discussion_r786701728
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File path: datafusion/src/physical_plan/expressions/cast.rs
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@@ -269,6 +269,168 @@ mod tests {
}};
}
+ fn create_decimal_array(
+ array: &[i128],
+ precision: usize,
+ scale: usize,
+ ) -> Result<DecimalArray> {
+ let mut decimal_builder = DecimalBuilder::new(array.len(), precision,
scale);
+ for value in array {
+ decimal_builder.append_value(*value)?
+ }
+ decimal_builder.append_null()?;
+ Ok(decimal_builder.finish())
+ }
+
+ #[test]
+ fn test_cast_decimal_to_decimal() -> Result<()> {
+ let array: Vec<i128> = vec![1234, 2222, 3, 4000, 5000];
+ let decimal_array = create_decimal_array(&array, 10, 3)?;
+ generic_decimal_to_other_test_cast!(
+ decimal_array,
+ DataType::Decimal(10, 3),
+ DecimalArray,
+ DataType::Decimal(20, 6),
+ vec![
+ Some(1234_000_i128),
+ Some(2222_000_i128),
+ Some(3_000_i128),
+ Some(4000_000_i128),
+ Some(5000_000_i128),
+ None,
+ ],
+ DEFAULT_DATAFUSION_CAST_OPTIONS
+ );
+
+ let decimal_array = create_decimal_array(&array, 10, 3)?;
+ generic_decimal_to_other_test_cast!(
+ decimal_array,
+ DataType::Decimal(10, 3),
+ DecimalArray,
+ DataType::Decimal(10, 2),
+ vec![
+ Some(123_i128),
+ Some(222_i128),
+ Some(0_i128),
+ Some(400_i128),
+ Some(500_i128),
+ None,
+ ],
+ DEFAULT_DATAFUSION_CAST_OPTIONS
+ );
+
+ Ok(())
+ }
+
+ #[test]
+ fn test_cast_decimal_to_numeric() -> Result<()> {
Review comment:
move test to here
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