* Rod Taylor ([EMAIL PROTECTED]) wrote: > On Thu, 2005-06-30 at 23:02 +0900, Satoshi Nagayasu wrote: > > > The TODO item is about counting all temporary files, not sorts in > > > particular. Or at least that's what I thought it meant. > > > > If the DBA have to improve the performance, > > DBA will need to know about: > > > > - Which SQL generate a disk sort? > > Good point. An EXPLAIN ANALYZE note about the disk usage for the sort > would be really nice.
I agree with this. It'd also be really nice to know when a sort is
going to be done on the disk vs. when the planner thinks there's enough
memory to do it in memory (or does that always turn it into a hash join
from a merge join?).
Thanks,
Stephen
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