Re: Automate copy - Postgres 9.2

2016-06-09 12:13 GMT+12:00 John R Pierce <pierce(at)hogranch(dot)com>:

> On 6/8/2016 4:24 PM, Patrick B wrote:
>
>
> I need to do a file backup for each account_id.
>
> Example:
>
> COPY (SELECT * FROM backup_table WHERE id = 1112 AND status = 1) TO '/var/lib/pgsql/1112.sql';
>
>
> COPY generates CSV and similar formats, not .sql. only pg_dump, the
> command line utility, outputs .SQL
>
> begin
>
> FOR crtRow in execute 'select account_id from backup_table WHERE
> migrated = 1 AND account_id = '|| $1
>
>
> LOOP
>
> COPY
>
> (SELECT * FROM gorfs.WBP_4868_backup_table_BLOBS WHERE migrated =
> 1 AND account_id = crtRow.account_id)
>
> TO '/var/lib/pgsql/gorfs_backup/%s.sql';
>
> end loop;
>
> return integer;
>
> end
>
> try...
>
>
> begin
>
> FOR crtRow in
> select account_id from backup_table WHERE migrated = 1 AND
> account_id in $1
>
> LOOP
>
> COPY
>
> (SELECT * FROM gorfs.WBP_4868_backup_table_BLOBS WHERE migrated =
> 1 AND account_id = crtRow.account_id)
>
> TO '/var/lib/pgsql/gorfs_backup/' || crtRow.account_id || '.csv';
>
> end loop;
>
> return integer;
>
> end
>
>
> but you can't exactly return 'integer' if its a list of values, so I'm not
> sure what it is you want to return from this function...
>
>
>
> --
> john r pierce, recycling bits in santa cruz
>
>

CREATE or REPLACE FUNCTION function(integer)

RETURNS void AS $$

declare

crtRow record;

begin

FOR crtRow in EXECUTE 'select DISTINCT(account_id) from backup_table
WHERE migrated = 1 AND account_id IN '|| $1

LOOP

COPY

(SELECT * FROM backup_table WHERE migrated = 1 AND account_id =
crtRow.account_id)

TO '/var/lib/pgsql/' || crtrow.account_id || '.csv';

end loop;

end

$$ language 'plpgsql';

ERROR:

ERROR: syntax error at or near "||"
> LINE 12: TO '/var/lib/pgsql/' || crtrow.account_id |...