[RFC] Apache Arrow Flight SQL adapter for PostgreSQL performance

[Sutou Kouhei <ko...@clear-code.com>]

Hi,

I'm implementing Apache Arrow Flight SQL adapter for
PostgreSQL based on the architecture described at
https://github.com/kou/arrow/blob/flight-sql-postgresql/flight-sql-postgresql.md
.

I've implemented minimal features to confirm whether the
architecture works. The minimal features means:

  * only one connection is accepted
  * integer is only supported

I measured performance of the implementation:
https://github.com/apache/arrow-flight-sql-postgresql/pull/28

If you're familiar with PostgreSQL or Flight SQL, could you
give me your comments for the result? You can use the pull
request or this thread for your comments. I want to use them
to determine whether the current architecture is reasonable
or not.


Thanks,
-- 
kou