hkpeaks opened a new issue, #35688:
URL: https://github.com/apache/arrow/issues/35688

   ### Describe the usage question you have. Please include as many useful 
details as  possible.
   
   
   Based on current testing my Golang dataframe project which is achieving 
outstanding performance when data source is csv file. Next step I want to 
implement parquet file format when it become very popular. After a basic 
reserach in this topic, I still not clear to approach how to implement Parquet 
using your golang library as there are little code sample I can find in the 
community. My need is simple, I have built a in-memory and streaming engine 
which is using simple data structure which is bytearray similar to csv, I 
developed a set of algorithm to support byte-to-byte conversion directly for 
ETL functons Read/Write file, Distinct, GroupBy, JoinTable and Select 
column/row. Also solve JoinTable for billion of row using 32GB memory.
   
   My requirement to support Parquet format is simple. I need to know how to 
read bytearray of particular columns of Parquet format.  After I can read, of 
course need to know how to write.
   
   Today I have published the pre-release 64-bit runtime for Windows/Linux of 
my project @ https://github.com/hkpeaks/peaks-consolidation/releases
   
   ### Component(s)
   
   Go


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