"surabhi.ahuja" <surabhi.ahuja@iiitb.ac.in> writes:
> I was using Postgres 8.0.0
> I have upgraded it to Postgres 8.1.5
> I have seen that the delete performance has degraded considerably.
Did you remember to re-ANALYZE your tables after transferring your database?
If so, what does EXPLAIN ANALYZE show for the slow delete?
regards, tom lane