File size consideration of file_fdw in PostgreSQL - Mailing list pgsql-general

From Xiaobo Gu
Subject File size consideration of file_fdw in PostgreSQL
Date
Msg-id CACOCgcn9ge48ShVzAX8DjY+SEEGrx+=-Jhc2V9WiWfwP+LSzXg@mail.gmail.com
Whole thread Raw
Responses Re: File size consideration of file_fdw in PostgreSQL  (Albe Laurenz <laurenz.albe@wien.gv.at>)
List pgsql-general
Hi,
 
We have very large files in size will be created as external tables in PostgreSQL via file_fdw, we have the following considerations:
1. Can file_fdw handle files with size large than the size of RAM in the server.
2. Will file_fdw scan the full file every time when the external table is queried, even we have "where" clause to narrow to a subset of rows , as the file_fdw doesn't have a server engine.
 
Can you help with this, thanks.
 
Xiaobo

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