viirya commented on code in PR #307:
URL: https://github.com/apache/datafusion-comet/pull/307#discussion_r1576969288
##########
core/src/execution/datafusion/expressions/cast.rs:
##########
@@ -103,10 +126,78 @@ impl Cast {
(DataType::LargeUtf8, DataType::Boolean) => {
Self::spark_cast_utf8_to_boolean::<i64>(&array,
self.eval_mode)?
}
- _ => cast_with_options(&array, to_type, &CAST_OPTIONS)?,
+ (
+ DataType::Utf8,
+ DataType::Int8 | DataType::Int16 | DataType::Int32 |
DataType::Int64,
+ ) => Self::spark_cast_string_to_integral(to_type, &array,
self.eval_mode)?,
+ (
+ DataType::Dictionary(key_type, value_type),
+ DataType::Int8 | DataType::Int16 | DataType::Int32 |
DataType::Int64,
+ ) if key_type.as_ref() == &DataType::Int32
Review Comment:
Except for that any operator or expression during execution produce a
dictionary with keys other than Int32 type. But for that I think it should be
considered a bug for us to fix because I don't think it makes sense to change
dictionary key type.
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