Re: psycopg2 open file for reading

From: Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
To: "Shulgin, Oleksandr" <oleksandr(dot)shulgin(at)zalando(dot)de>
Cc: Dan Sawyer <dansawyer(at)earthlink(dot)net>, psycopg(at)postgresql(dot)org
Subject: Re: psycopg2 open file for reading
Date: 2015-10-28 14:55:43
Message-ID: 5630E1EF.1000002@aklaver.com
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On 10/28/2015 07:42 AM, Shulgin, Oleksandr wrote:
> On Wed, Oct 28, 2015 at 3:35 PM, Adrian Klaver
> <adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>> wrote:
>
>
> The cheat is to read the on disk file and write it into an in memory
> file and then use that with STDIN. Something like:
>
> sql_copy = "COPY " + self.pg_tbl_name
> sql_copy += " FROM STDIN WITH CSV DELIMITER '\t'"
> cur_copy.copy_expert(sql_copy, mem_file)
>
>
> And you don't actually need a "memory file", any object implementing
> "read" method, such as a normal fie object should just work:
>
> file=open('1.txt', 'r')
> cur_copy.copy_expert(sql_copy, file)

Hmm, I was over thinking this. Thanks for the simplification.

>
> --
> Alex
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com

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