On May 3, 2013 12:15 PM, "Yang Zhang" wrote:
> I have an `account` table with 5.3M rows, with primary key `id` of
> type `text` (and 600+ columns if that matters).
>
> I'm trying to create a `newaccount` table with the same schema but
> 600k newly imported rows, then insert all the old rows for w
Yang Zhang writes:
> The most obvious query doesn't work so hot due to repeated execution
> of the subplan:
> => explain insert into newaccount select * from account where id not
> in (select id from account);
Yeah. Try using a NOT EXISTS instead.
> This isn't a big deal as there's a straightf
I have an `account` table with 5.3M rows, with primary key `id` of
type `text` (and 600+ columns if that matters).
I'm trying to create a `newaccount` table with the same schema but
600k newly imported rows, then insert all the old rows for which `id`
isn't already in the set of newly updated rows
