Re: Index name different from constraint name

* Bruce Momjian (pgman(at)candle(dot)pha(dot)pa(dot)us) wrote:
> Added to TODO:
>
> o Have ALTER INDEX update the name of a constraint using that index
> o Allow ALTER TABLE RENAME CONSTRAINT

More like:
Add ALTER TABLE RENAME CONSTRAINT; implicitly rename linked indexes also

Is there much dependency on constraint names? If not, it'd seem like
implementing this would be pretty straight-forward. For some reason, I
thought there was some dependency on constraint names, but I can't
remember what...

Thanks,

Stephen

> ---------------------------------------------------------------------------
>
> Tom Lane wrote:
> > Stephen Frost <sfrost(at)snowman(dot)net> writes:
> > > * Tom Lane (tgl(at)sss(dot)pgh(dot)pa(dot)us) wrote:
> > >> Arguably we should forbid ALTER INDEX RENAME on an index that belongs to
> > >> a constraint, and make you rename the constraint instead (and have that
> > >> implicitly change the index name too).
> >
> > > That would work too, though I don't think you can just rename a
> > > constraint.
> >
> > Yeah, we'd need to add syntax for that, but it seems useful anyway.
> >
> > Plan B would be to make the ALTER INDEX RENAME update the associated
> > constraint too, but that doesn't give you a facility to rename
> > constraints of other types.
> >
> > Anyway, point is that I think we should force the index and constraint
> > names to track each other, rather than complicating matters by
> > supporting the situation where they are different.
> >
> > regards, tom lane
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 9: In versions below 8.0, the planner will ignore your desire to
> > choose an index scan if your joining column's datatypes do not
> > match
> >
>
> --
> Bruce Momjian | http://candle.pha.pa.us
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