BUG #2013: Assertion Failure

The following bug has been logged online:

Bug reference:      2013
Logged by:          Joel Stevenson
Email address:      joelstevenson@mac.com
PostgreSQL version: 8.1b3
Operating system:   RHEL 3
Description:        Assertion Failure
Details:

TRAP: FailedAssertion("!(!(tp.t_data->t_infomask & 0x0800))", File:
"heapam.c", Line: 1410)

This occured during a nightly mainentance run which sets the transaction
isolation level to SERIALIZABLE, moves records from 3 highly active tables
to 3 storage tables by creating a temp table and selecting candidate record
ids into it, then using that list via sub-select for the move ala "insert
into blah_storage (f1, f2, f3) select f1, f2, f3 from blah_active where f1
in (select f1 from move_records_tmp)"

After the move a VACUUM FULL ANALYZE is issued.  It appears from the logs
written by the maintenace script that the assertion failure occured during
the vacuum.

I will install RC1 and see if it can be reproduced.