Обсуждение: convert an Insert Into... select from... to use COPY ?

Hi All;


I have an sql stmt that runs:

insert into x
( a.col1, a.col2, a.col3,b.col1,b.col2)
select blah,blah,blah
...
from giant_table a,
     even_bigger_table b
where.....

I wonder, could I convert this to use COPY into the table (x) instead of the
select stmt?



Thanks in advance

Kevin Kempter <kevink@consistentstate.com> writes:
> I have an sql stmt that runs:

> insert into x
> ( a.col1, a.col2, a.col3,b.col1,b.col2)
> select blah,blah,blah
> ...
> from giant_table a,
>      even_bigger_table b
> where.....

> I wonder, could I convert this to use COPY into the table (x) instead of the
> select stmt?

Why would you want to?  It's certain to be far slower.

            regards, tom lane