Re: [HACKERS] Re: [GENERAL] drop/rename table and transactions

Vadim Mikheev <vadim@krs.ru>

From: Vadim Mikheev <vadim@krs.ru>
To: Hiroshi Inoue <Inoue@tpf.co.jp>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, PostgreSQL Developers List <hackers@postgresql.org>
Date: 1999-12-01T10:49:47Z
Lists: pgsql-hackers
Hiroshi Inoue wrote:
> 
> > >
> > > If there's no objection,I would change UnlockRelation() to not release
> > > the specified lock except AccessShareLock.
> >
> > Why don't remove this call from improper places?
> > I would try to find all calls and understand why
> > they made...
> >
> 
> I was surprized that few people really want DDL commands inside transactions.
> Are there any reasons to releasing lock before end of transaction except
> that long term lock for system tuples is not preferable ?
> 
> I think that UnlockRelation() is unnecessary fundamentally.
> Mine is the simplest way to achieve this.
> If there's no problem,I am glad to remove UnlockRelation() calls.

There are! I finally found where I used UnlockRelation() -
in execUtils.c:ExecCloseIndices(). Please read comments in
ExecOpenIndices() where LockRelation() is called...

Vadim