Re: DROP VIEW lasts forever

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От Chris Browne
Тема Re: DROP VIEW lasts forever
Дата
Msg-id 60r6jtkc7t.fsf@dba2.int.libertyrms.com
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Ответ на DROP VIEW lasts forever  ("Christian Rengstl" <Christian.Rengstl@klinik.uni-regensburg.de>)
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Christian.Rengstl@klinik.uni-regensburg.de ("Christian Rengstl") writes:
> Whenever I try dropping a view using DROP VIEW myschema.myview the
> query runs forever. The last time I tried was ten minutes ago and the
> query is still running even though the view queries just data of one
> single table with around 5 fields.
> What could be the reason?
>
> By the way, I'm using psql 8.2

Chances are that the problem was that some connection had a lock on
the VIEW.

As a rule, when something "takes forever" when there is no reasonable
reason for it to be expected to run for a long time (e.g. - where
you're doing a cross join of two tables that each have a billion
tuples), it is entirely likely that you have run afoul of some locks,
and you can expect that NOTHING will happen until such time as
whatever is holding onto the locks lets go of them.
--
output = reverse("gro.mca" "@" "enworbbc")
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