Re: this is in plain text (row level locks)

Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Tom Lane wrote:
>> This is actually an issue though. Row-level shared locks would be
>> really nice to have for foreign-key handling. Right now we have to
>> use X locks for those, and that leads to deadlocking problems for
>> applications.

> Is the plan to allow one backend to shared lock the row while others can
> read it but not modify it, or is the idea to actually allow multiple
> backends to record their shared status on the row?

Plan? We have no plan to fix this :-(. But clearly there has to be
some way to tell which backends hold read locks on a shared-locked row,
else you can't tell if they've all dropped the lock or not.

regards, tom lane