From: Oleg Kozlovski on
Hi all!

I have a quite complicated query, which uses 4 or 5 common table
expressions and produces about 155000 rows. But recently it started to
consume the disc space at alarming rate. Investigations shows that it
is due to the SYSTEM TEMPORARY TABLESPACE with the page size 8K.
Dropping this TS solves the problem, query works fine (having only one
TS with 4K, created by default). But I need the bigger TS for other
queries.

What could cause this? It worked fine before, both TS exist for a
quite long time...