mindhash opened a new pull request #7014:
URL: https://github.com/apache/arrow/pull/7014


   Hello team,
   This minor change makes newBuilder() public to reduce verbosity in upstream. 
   
   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. 
   
   
   


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