liurenjie1024 commented on code in PR #79:
URL: https://github.com/apache/iceberg-rust/pull/79#discussion_r1420028918
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crates/iceberg/src/spec/transform.rs:
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@@ -126,17 +126,20 @@ pub enum Transform {
impl Transform {
/// Get the return type of transform given the input type.
/// Returns `None` if it can't be transformed.
- pub fn result_type(&self, input_type: &Type) -> Option<Type> {
+ pub fn result_type(&self, input_type: &Type) -> Result<Type> {
Review Comment:
They have different meaning. When return `Option`, it acts more like a check
to say if this transform can be applied, and whether it's an error is up to
user. But their difference seems negligible. cc @Xuanwo @JanKaul @Fokko What do
you think?
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