Marios Vodas <mvo...@gmail.com> writes: > If I'm not wrong, temporary tables stay in memory if they do not go over > temp_buffers limit (e.g. if temp_buffers is 2GB and the size of the table is > 300MB the table will remain in memory). > What if a column is variable length (e.g. text), how does this column stay > in-memory since it should be stored in TOAST?
Well, the toast table is also temp, so it'll get cached in temp_buffers as well, as long as it fits. > When I build a GiST index on a temporary table does the index stay in memory > as well? Same answer. Keep in mind that temp_buffers is per process, not global. Just as with work_mem, you need to be careful about setting it sky-high. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers