How can I insert the return of DELETE into INSERT in postgresql?
I am trying to delete a row from one table and insert it with some additional data into another. I know this can be done in two separate commands, one to delete and another to insert into the new table. However I am trying to combine them and it is not working, this is my query so far:
insert into b (one,two,num) values delete from a where id = 1 returning one, two, 5;
When running that I get the following error:
ERROR: syntax error at or near "delete"
Can anyone point out how to accomplish this, or is there a better way? or is it not possible?
Answer
You cannot do this before PostgreSQL 9.1, which is not yet released. And then the syntax would be
WITH foo AS (DELETE FROM a WHERE id = 1 RETURNING one, two, 5)
INSERT INTO b (one, two, num) SELECT * FROM foo;