Re: COPY with a variable path

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От Raymond O'Donnell
Тема Re: COPY with a variable path
Дата
Msg-id 492F2C5B.4010608@iol.ie
обсуждение исходный текст
Ответ на COPY with a variable path  (Bill Todd <pg@dbginc.com>)
Список pgsql-general
On 27/11/2008 23:09, Bill Todd wrote:
> Raymond O'Donnell wrote:

>> You could write a pl/pgsql function which constructs the query as a
>> string and then runs it with EXECUTE.

>>
> According to the PostgreSQL help file EXECUTE is used to execute a
> prepared statement. I tried that but when I call PREPARE with COPY as
> the statement I get an error. Are you saying that I can also use EXECUTE as

Sorry, Bill, I wasn't clear enough - I was suggesting writing a pl/pgsql
function something like this (not tested):

  create function do_copy(path text) returns void
  as
  $$
  begin
    execute 'copy your_table from ' || filepath;
    return;
  end;
  $$
  language plpgsql;


EXECUTE in pl/pgsql is different from the version you refer to
above....here it is in the docs:

http://www.postgresql.org/docs/8.3/static/plpgsql-statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN

Ray.

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Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland
rod@iol.ie
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