jmao-denver commented on issue #406:
URL: https://github.com/apache/arrow-adbc/issues/406#issuecomment-1419451929

   @lidavidm I know very little of Postgres (libpq in particular) but I found 
this in the doc.
   
https://www.postgresql.org/docs/current/app-psql.html#:~:text=For%20%5Ccopy%20...%20from,to%20pstdout.
   
   My question is even though psql doesn't print the COPY count command status, 
could libpq still return it somehow?
   
   I have also read through c/driver/postgresql/statement.cc and believe that 
'loading everything into arrow arrays up front' is a viable solution with not 
much performance penalty if any at all. 


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