Re: CLUSTER ALL syntax

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От Alvaro Herrera
Тема Re: CLUSTER ALL syntax
Дата
Msg-id 20021118013140.GA19069@dcc.uchile.cl
обсуждение исходный текст
Ответ на Re: CLUSTER ALL syntax  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: CLUSTER ALL syntax  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Sun, Nov 17, 2002 at 06:43:38PM -0500, Bruce Momjian wrote:
> Tom Lane wrote:
> > Bruce Momjian <pgman@candle.pha.pa.us> writes:

> > > And what about REINDEX?  That seems to have a different syntax from the
> > > other two.  Seems there should be some consistency.
> > 
> > We don't have a REINDEX ALL, and I'm not in a hurry to invent one.
> > (Especially, I'd not want to see Alvaro spending time on that instead
> > of fixing the underlying btree-compaction problem ;-))
> 
> My point for REINDEX was a little different.  The man pages shows:
> 
>     REINDEX { DATABASE | TABLE | INDEX } <replaceable
>         class="PARAMETER">name</replaceable> [ FORCE ]
> 
> where we don't have ALL but we do have DATABASE.  Do we need that
> tri-valued secodn field for reindex because you can reindex a table _or_
> and index, and hence DATABASE makes sense?  I am just asking.

REINDEX DATABASE is for system indexes only, it's not the same that one
would think of REINDEX alone (which is all indexes on all tables, isn't
it?).

What I don't understand is what are the parameters in the
ReindexDatabase function for.  For example, the boolean all is always
false in tcop/utility.c (and there are no other places that the function
is called).  Also, the database name is checked to be equal to a
"constant" value, the database name that the standalone backend is
connected to.  Why are those useful?

-- 
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"No renuncies a nada. No te aferres a nada"


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