On 5/2/06, Tom Lane <[EMAIL PROTECTED]> wrote:
"Ian Burrell" <[EMAIL PROTECTED]> writes:
> We recently upgraded to PostgreSQL 8.1 from 7.4 and a few queries are
> having performance problems and running for very long times. The
> commonality seems to be Post
We recently upgraded to PostgreSQL 8.1 from 7.4 and a few queries are
having performance problems and running for very long times. The
commonality seems to be PostgreSQL 8.1 is choosing to use a nested
loop join because it estimates there will be only be a single row.
There are really thousands o