stephen farrell <sfarrell(at)almaden(dot)ibm(dot)com> writes:
> I'm having a problem with a queyr like: INSERT INTO FACT (x,x,x,x,x,x)
> SELECT a.key,b.key,c.key,d.key,e.key,f.key from x,a,b,c,d,e,f where x=a
> and x=b .... -- postgres7.4 is running out of memory. I'm not sure
> why this would happen -- does it buffer the subselect before doing the
> insert?
What does EXPLAIN show for the query? And we need to see the exact
query and table definitions, not abstractions.
regards, tom lane