Re: Revised Patch to allow multiple table locks in "Unison"
| От | Tom Lane |
|---|---|
| Тема | Re: Revised Patch to allow multiple table locks in "Unison" |
| Дата | |
| Msg-id | 12542.996782744@sss.pgh.pa.us обсуждение исходный текст |
| Ответ на | Re: Revised Patch to allow multiple table locks in "Unison" (Fernando Nasser <fnasser@cygnus.com>) |
| Ответы |
Re: Revised Patch to allow multiple table locks in "Unison"
|
| Список | pgsql-patches |
Fernando Nasser <fnasser@cygnus.com> writes:
> What about having the syntax
> LOCK a,b,c;
> now just as a shorthand for
> LOCK a;
> LOCK b;
> LOCK c;
> This would save typing and allow for Oracle compatibility.
This seems fine to me (and in fact I thought we'd already agreed to it).
Maybe some day we will get ambitious enough to make it do
parallel-locking, but for now we can get 80% of what we want with 0.8%
of the effort ;-)
> I wonder how we handle
> LOCK v;
> where "v" is a view.
regression=# create view v as select * from int4_tbl;
CREATE
regression=# lock table v;
ERROR: LOCK TABLE: v is not a table
> We should be locking all the base tables.
I consider that debatable. It hard-wires a rather constricted idea
of what the semantics of a view are.
regards, tom lane
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