'Marko Kreen' wrote:
>
> On Wed, Nov 15, 2000 at 02:42:24PM +0100, Zeugswetter Andreas SB wrote:
> >
> > > > We need the 7.0 style for compatibility with other DB's. Postgres was
> > > > "the" pioneer in this area, but similar functionality is now available in other DB's.
> > >
> > > Could you explain? PostgreSQL cant be compatible in C level, why
> > > the SQL compatibility? (I mean the LANGUAGE 'C' specifically)
> >
> > C code compatible with Informix:
> >
> > int32 intadd (int32 a, int32 b)
> > {
> > return a + b;
> > }
> >
> > This is the same code that was standard in PostgreSQL 7.0
>
> Hmm, I have not actually researched if 7.1 supports 7.0 'C' code
> or not. Butthe 'newC' is anyway incompatible with 'C'. So:
>
> * CREATE FUNCTION .. AS 'foo.so', .. LANGUAGE 'C';
>
> creates the old¬ 'C', 7.0 and ifnormix compatible funtion.
>
> And it is documented as deprecated, for-compatibility.
>
> * CREATE FUNCTION .. FROM LIBRARY 'foo.so.2' ..{name in .so}
> [WITH VERSION abi_ver]
> {the actual syntax needs polishing}
>
> creates by default the newC style fn's
> but WITH VERSION 0 (e.g.) you can create the old style
> functions too.
>
> Comments?
I generally like the idea, but I am working on a text index/search
project that will rely heavily on C interfacing with Postgres.
I'm not sure what "NewC" is, nor do I understand what problem it is
attempting to fix.
--
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