Re: [HACKERS] Allow pg_dump to dump sequences using NO_MAXVALUE - Mailing list pgsql-patches

From Bruce Momjian
Subject Re: [HACKERS] Allow pg_dump to dump sequences using NO_MAXVALUE
Date
Msg-id 200303200518.h2K5I9e29802@candle.pha.pa.us
Whole thread Raw
In response to Re: [HACKERS] Allow pg_dump to dump sequences using NO_MAXVALUE  (Rod Taylor <rbt@rbt.ca>)
List pgsql-patches
Patch applied.  Thanks.

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Rod Taylor wrote:
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> On Sun, 2003-02-23 at 09:05, Gavin Sherry wrote:
> > On 23 Feb 2003, Rod Taylor wrote:
> >
> > > - Move SEQ_MAXVALUE, SEQ_MINVALUE definitions to sequence.h
> > >
> > > - Add check in pg_dump to see if the value returned is the max /min
> > > values and replace with NO MAXVALUE, NO MINVALUE.
> > >
> > > - Change START and INCREMENT to use START WITH and INCREMENT BY syntax.
> > > This makes it a touch easier to port to other databases with sequences
> > > (Oracle).  PostgreSQL supports both syntaxes already.
> >
> > +       char            bufm[100],
> > +                               bufx[100];
> >
> > This seems to be an arbitary size. Why not set it to the actual maximum
> > length?
> >
> > Also:
> >
> > +       snprintf(bufm, 100, INT64_FORMAT, SEQ_MINVALUE);
> > +       snprintf(bufx, 100, INT64_FORMAT, SEQ_MAXVALUE);
> >
> > sizeof(bufm), sizeof(bufx) is probably the more
> > maintenance-friendly/standard way to do it.
>
> I changed the code to use sizeof - but will wait for a response from
> Peter before changing the size.  It's consistent throughout the sequence
> code to be 100 for this purpose.
>
> http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/commands/sequence.c.diff?r1=1.85&r2=1.86
>
> --
> Rod Taylor <rbt@rbt.ca>
>
> PGP Key: http://www.rbt.ca/rbtpub.asc

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