Luiz Gonzaga da Mata <[EMAIL PROTECTED]> writes: > Although to have changed they sort_mem/work_mem it for 1 MB, it did not > use this area in available memory for the connection to make the > creation of the temporary table.
Why would you expect it to, and why would you think there is any advantage? A small, short-lived temp table will probably never actually be spilled to disk by the kernel (we never fsync them) so the actual performance improvement would be minimal. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match