[elephant-devel] More from Postmodern

[Leslie P. Polzer]

I noticed two apparently minor errors with PM:

First:

2008-03-01 19:47:18 CET ERROR:  prepared statement "TREE32FIRST" already exists
2008-03-01 19:47:18 CET ERROR:  current transaction is aborted, commands ignored until end
 of transaction block

Second:

2008-03-01 20:42:35 CET ERROR:  duplicate key violates unique constraint "slots_qi_key"
2008-03-01 20:42:35 CET CONTEXT:  SQL statement "INSERT INTO slots (qi, value) VALUES (
$1 ,  $2 )"
        PL/pgSQL function "ins_upd_slots" line 9 at SQL statement

Both of them might be the result of a race condition.

Also, PM's persistent slot reader will raise an UNBOUND-SLOT exception
instead of calling SLOT-UNBOUND. I believe the standard permits
not calling SLOT-UNBOUND when a slot is not bound, but it's
counter-intuitive anyway since that's the behaviour for STANDARD-CLASS
and there doesn't really seem to be any reason not to emulate this
behaviour.

  Leslie