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Create ArrayScalarBuilder for creating single element List arrays - #13623
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alamb
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December 2, 2024 19:50
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| count | ||
| } | ||
| /// Creates single element [`ListArray`], [`LargeListArray`] and |
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The idea is to pull the wrapping code into this structure so it remains consistent across list types
alamb
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December 2, 2024 20:31
| /// assert_eq!(list_arr.len(), 1); | ||
| /// ``` | ||
| #[derive(Debug, Clone)] | ||
| pub struct SingleRowArrayBuilder { |
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It seems this builder is for List, maybe name with SingleRowListArrayBuilder is more concise?
jayzhan211
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Dec 3, 2024
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Thanks @alamb |
alamb
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Dec 4, 2024
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Thank you @jayzhan211 |
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Which issue does this PR close?
Rationale for this change
There are a bewildering number of small free functions for performing the same basic thing: converting an array into a single row list array / scalar
This has also lead to subtle bugs such as #13481
Let's encapsulate that operation into a well documented structure
What changes are included in this PR?
ArrayScalarBuilderAre these changes tested?
Are there any user-facing changes?