[ARROW-8563] [Go] Minor change to make newBuilder public

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: Go
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/24730
• Assignee: Amol Umbarkar
• Reporter: Amol Umbarkar
• Created: 23/Apr/20 05:20
• Updated: 11/Jan/23 08:01
• Resolved: 24/Jun/20 21:21

Description

This minor change makes newBuilder() public to reduce verbosity for downstream.

To give you example, I am working on a parquet read / write into Arrow Record batch where the parquet data types are mapped to Arrow data types.
My Repo: https://github.com/mindhash/arrow-parquet-go

In such cases, it will be nice to have a builder API (newBuilder) be generic to accept a data type and return a respective array. 

I am looking at a similar situation for JSON reader. I think this change will make the builder API much easier for upstream as well as internal packages.

Issue Links

• links to: GitHub Pull Request #7014