Re: Why is AccessShareLock held until end of transaction?

On 11 March 2014 03:41, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Joe Conway <mail(at)joeconway(dot)com> writes:
>> I am probably missing something obvious, but why does the
>> AccessShareLock remain held on a table after a SELECT statement is
>> complete when in a transaction block?
>
> *Any* lock acquired by user command is held till end of transaction;
> AccessShareLock isn't special.
>
> In general, releasing early would increase the risk of undesirable
> behaviors such as tables changing definition mid-transaction.

I thought "good question" at first, but the workaround is simple...
just don't use multi-step transactions, submit each request as a
separate transaction.

--
Simon Riggs http://www.2ndQuadrant.com/
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