pgsql-bugs@postgresql.org writes:
> The attached sql crashed Postgres 7.0.2 on a debian linux system
> (intel), using the packages 7.0.2-6.
I get
FATAL 1: btree: failed to add item to the page in _bt_sort (2)
pqReadData() -- backend closed the channel unexpectedly.
This probably means the backend terminated abnormally
before or while processing the request.
Is that the same thing you see?
The script does not seem to trigger the failure in current sources,
so I suspect the equal-keys changes I made awhile back fixed it.
But I will dig into the crash and make sure. Many thanks for providing
a self-contained test case!
regards, tom lane