"Peter Bauer" <[EMAIL PROTECTED]> writes:
> we have a theory for the root of all evil which causes a reproducable
> deadlock which is not detected by Postgre:

> The DELETE statement contains a select which waits for a sharelock
> (according to pg_locks and pg_stat_activity) on rows locked by the
> UPDATE statement. The UPDATE itself waits to get a lock for some rows
> which are exclusively locked by the DELETE statement (got from its
> sub-SELECT).

> What do you think about this theory?

Not much.  It's been years since anyone found a bug in the deadlock
detector; if you want us to believe you have an undetected deadlock,
you'll need more evidence than an unsupported assertion.

                        regards, tom lane

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