On Wednesday, May 23, 2018, a <372660...@qq.com> wrote:
> Thank you very much.
>
> BTW, may I ask if I would like to do the opposite that copy csv file
> content into the first element, how should I do it??
>
> COPY B(Ay[1])
> from 'E:/products_199.csv' DELIMITER ',' CSV HEADER;
>
you cannot put "[1]" there. The csv file value has to be an array input
literal with only one element. i.e., something like: {(1,2)}
There is no first element as such when you are creating a new record.
There will be however many elelements to supply to the array input.
David J.
