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Posted to github@datafusion.apache.org by "Rafferty97 (via GitHub)" <gi...@apache.org> on 2024/07/28 05:23:45 UTC
[I] Remove unnecessary allocations in `struct` and `named_struct` [datafusion]
Rafferty97 opened a new issue, #11685:
URL: https://github.com/apache/datafusion/issues/11685
## Summary
Improve the performance of the `struct` and `named_struct` functions by eliminating unnecessary heap allocations.
## Detail
In the implementations of the `struct` and `named_struct` functions, the final `StructArray` is created using `StructArray::from` which internally unzips the provided `Vec<(FieldRef, ArrayRef)>>` into two separate vectors. It would therefore be more efficient to simply construct these two separate `Vec`s directly and pass these to `StructArray::new`, avoiding the allocation of the intermediate `Vec<(FieldRef, ArrayRef)>`.
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Re: [I] Remove unnecessary allocations in `struct` and `named_struct` [datafusion]
Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb closed issue #11685: Remove unnecessary allocations in `struct` and `named_struct`
URL: https://github.com/apache/datafusion/issues/11685
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