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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/07/11 09:20:32 UTC

[GitHub] [arrow-rs] liukun4515 commented on a diff in pull request #2000: Add `Decimal256Builder` and `Decimal256Array`; Decimal arrays now implement `BasicDecimalArray` trait

liukun4515 commented on code in PR #2000:
URL: https://github.com/apache/arrow-rs/pull/2000#discussion_r917719589


##########
arrow/src/array/builder/decimal_builder.rs:
##########
@@ -42,8 +44,18 @@ pub struct DecimalBuilder {
     value_validation: bool,
 }
 
+/// Array Builder for [`Decimal256Array`]
+///
+/// See [`Decimal256Array`] for example.
+#[derive(Debug)]
+pub struct Decimal256Builder {
+    builder: FixedSizeListBuilder<UInt8Builder>,

Review Comment:
   I also confused about that we use the the `FixedSizeListBuilder` to store decimal data in the decimal builder.



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