PostgreSQL return select results AND add them to temporary table?
I think you can do this with a Postgres feature that allows data modification steps in CTEs. The more typical reason to use this feature is, say, to delete records for a table and then insert them into a log table. However, it can be adapted to this purpose. Here is one possible method (I don't have Postgres on hand to test this):
with q as ( <your query here> ), t as ( insert into temptable(pk) select pk from q )select *from q;Usually, you use the returning clause with the data modification queries in order to capture the data being modified.