Re: share lock error

7.4.3

And the records are gone from pg_locks, how much time after the deadlock
do I have before they are purged?

Terry Fielder
terry(at)greatgulfhomes(dot)com
Associate Director Software Development and Deployment
Great Gulf Homes / Ashton Woods Homes
Fax: (416) 441-9085

Tom Lane wrote:
> Terry Fielder <terry(at)ashtonwoodshomes(dot)com> writes:
>
>> I am getting this in my log file:
>> 2006-10-05 16:06:23 [6469] ERROR: deadlock detected
>> DETAIL: Process 6469 waits for ShareLock on transaction 668582701;
>> blocked by process 28763.
>> Process 28763 waits for ShareLock on transaction 668586325;
>> blocked by process 6469.
>>
>
>
>> I believe that the elements "a" and "b" are different tables.
>>
>
> Actually, what you're looking at there is a conflict on row-level locks
> being obtained in opposite orders. What PG version is this? If it's
> 8.1 you can identify the row in question from other entries in pg_locks,
> but if it's older then there's no easy way to find out.
>
> regards, tom lane
>
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