Re: query option in COPY postgres

On 11/06/2015 02:54 PM, masyaf wrote:
> Can you give any details about that?
>

I am assuming you are referring to COPY FROM a program.

Take a look at the docs:

http://www.postgresql.org/docs/9.4/interactive/sql-copy.html

"When PROGRAM is specified, the server executes the given command and 
reads from the standard output of the program, or writes to the standard 
input of the program. The command must be specified from the viewpoint 
of the server, and be executable by the PostgreSQL user. When STDIN or 
STDOUT is specified, data is transmitted via the connection between the 
client and the server."

In my case I would write the program in Python and output CSV. Every 
time I do that though, I just go ahead and use the copy_from() method of 
the psycopg2 cursor and never get to the above.

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Adrian Klaver
adrian.klaver@aklaver.com