ajwerner commented on code in PR #6845:
URL: https://github.com/apache/arrow-rs/pull/6845#discussion_r1873555322
##########
arrow-array/src/builder/struct_builder.rs:
##########
@@ -291,29 +290,38 @@ pub fn make_builder(datatype: &DataType, capacity: usize)
-> Box<dyn ArrayBuilde
t => panic!("The field of Map data type {t:?} should has a child
Struct field"),
},
DataType::Struct(fields) =>
Box::new(StructBuilder::from_fields(fields.clone(), capacity)),
- DataType::Dictionary(key_type, value_type) if **key_type ==
DataType::Int32 => {
- match &**value_type {
- DataType::Utf8 => {
- let dict_builder: StringDictionaryBuilder<Int32Type> =
- StringDictionaryBuilder::with_capacity(capacity, 256,
1024);
- Box::new(dict_builder)
- }
- DataType::LargeUtf8 => {
- let dict_builder: LargeStringDictionaryBuilder<Int32Type> =
- LargeStringDictionaryBuilder::with_capacity(capacity,
256, 1024);
- Box::new(dict_builder)
- }
- DataType::Binary => {
- let dict_builder: BinaryDictionaryBuilder<Int32Type> =
- BinaryDictionaryBuilder::with_capacity(capacity, 256,
1024);
- Box::new(dict_builder)
- }
- DataType::LargeBinary => {
- let dict_builder: LargeBinaryDictionaryBuilder<Int32Type> =
- LargeBinaryDictionaryBuilder::with_capacity(capacity,
256, 1024);
- Box::new(dict_builder)
- }
- t => panic!("Unsupported dictionary value type {t:?} is not
currently supported"),
+ DataType::Dictionary(key_type, value_type) if matches!(**key_type,
DataType::Int8 | DataType::Int32 ) => {
Review Comment:
Heh, I had originally typed it with all of them and backtracked when I read
the thread in the initial PR that introduced this code that was concerned with
code bloat. Done.
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