| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
| Cc: | Paul Matthews <plm(at)netspace(dot)net(dot)au>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Geometric Elimination |
| Date: | 2009-08-21 14:41:06 |
| Message-ID: | 3726.1250865666@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Martijn van Oosterhout <kleptog(at)svana(dot)org> writes:
> If you want index support, you need to go the whole way, and setup an
> appropriate operator class for (box,point).
No, I think he's doing the right thing by adding these cross-type
operators "loose" in the opfamily. An operator class is the subset
of an opfamily that's *essential* to the functioning of an index
on a particular datatype, and cross-type ops almost by definition
are not that. I suspect the missing piece is to add cases to the
relevant consistent() function(s).
regards, tom lane
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