apache / apache/arrow-rs

Support All Types in make_builder

Open
#3,434 2 comments 1 reaction 0 assignees View on GitHub
enhancement
Dominant language
Rust
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Forks
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Avg merge
2d 18h
Merged PRs (30d)
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Description

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**

`make_builder` currently only supports s subset of the available data types, it would be good to add support for

* ListArray
* LargeListArray
* Decimal256Array
* UnionArray
* DictionaryArray

This can likely make use of the new `downcast_primitive` macros.

**Describe the solution you'd like**

**Describe alternatives you've considered**

**Additional context**

Contributor guide

Open the contributing guide

Research direction

Start at the make_builder implementation and inspect the new downcast_primitive macros mentioned in the issue. Trace how existing data types are handled, then verify that ListArray, LargeListArray, Decimal256Array, UnionArray, and DictionaryArray are supported and covered by the project's relevant tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
data-engineering
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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