Re: Fix for RENAME - Mailing list pgsql-hackers

Seems Vadim's new storage manager for 7.2 would be the way to go.

I think he is going to have everything in one file.

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> > -----Original Message-----
> > From: Bruce Momjian [mailto:pgman@candle.pha.pa.us]
> > 
> > Can someone comment on this?
> >
> 
> It seems to me that we have to reach some consensus in
> order to get a standard transactional control mechanism
> to change the allocation of table files. Probably we would
> have to separate things into 2 parts.
>  
> 1) Where to allocate tables --  we would need some encapsulation
>     like tablespace.  It would be better to be handled differently by
>     each storage manager. Note that tablespace is only an encap-
>     sulation and doesn't necessarily mean that of Oracle.
> 2) Where tables are allocated --  only specific strorage manager
>     knows the meaing and everything would be treated internally.
> 
> Under current (file per table) storage manager,#1 isn't necessarily
> needed for the implementaion of #2 and Ross has already tried it.
> If we could get some consensus on the future direction of 1)2),
> we would be able to apply his implementation.
> 
> Regards.
> 
> Hiroshi Inoue
> Inoue@tpf.co.jp
>  
> > 
> > [ Charset ISO-8859-1 unsupported, converting... ]
> > > > -----Original Message-----
> > > > From: Bruce Momjian [mailto:pgman@candle.pha.pa.us]
> > > > 
> > > > > I'm now inclined to introduce a new system relation to store
> > > > > the physical path name. It could also have table(data)space
> > > > > information in the (near ?) future. 
> > > > > It seems better to separate it from pg_class because table(data?)
> > > > > space may change the concept of table allocation.
> > > > 
> > > > Why not just put it in pg_class?
> > > >
> > > 
> > > Not sure,it's only my feeling.
> > > Comments please,everyone.
> > > 
> > > We have taken a practical way which doesn't break file per table
> > > assumption in this thread and it wouldn't so difficult  to implement.
> > > In fact Ross has already tried it.
> > > 
> > > However there was a discussion about data(table)space for
> > > months ago and currently a new discussion is there.
> > > Judging from the previous discussion,I can't expect so much
> > > that it could get a practical consensus(How many opinions there
> > > were). We can make a practical step toward future by encapsulating
> > > the information of table allocation. Separating table alloc info from
> > > pg_class seems one of the way. 
> > > There may be more essential things for encapsulation. 
> > > 
> > > Comments ?
> > > 
> > > Regards.
> > > 
> > > Hiroshi Inoue
> > > Inoue@tpf.co.jp
> > > 
> > > 
> > 
> > 
> > -- 
> >   Bruce Momjian                        |  http://www.op.net/~candle
> >   pgman@candle.pha.pa.us               |  (610) 853-3000
> >   +  If your life is a hard drive,     |  830 Blythe Avenue
> >   +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026
> > 
> > 
> 


--  Bruce Momjian                        |  http://www.op.net/~candle pgman@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026