Re: App very unresponsive while performing simple update

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Tom Lane <tgl@xxxxxxxxxxxxx> writes:

> Greg Stark <gsstark@xxxxxxx> writes:
>
> > Except I don't think this is taking an exclusive lock at all. The original
> > post had the deadlock detection fire on a SharedLock.
> 
> Yeah, but it was a ShareLock on a transaction ID, which is the trace
> of something doing XactLockTableWait, which is only done if we're
> blocking on a locked or updated-but-uncommitted row.

Oops, didn't see this before I sent my last message. Brendan, in case it's not
clear, in case of a conflict between my explanation and Tom's listen to Tom.

:)


-- 
greg



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