Re: Hash support for row types

On Tue, Oct 20, 2020 at 11:10 AM Peter Eisentraut
<peter.eisentraut@2ndquadrant.com> wrote:
> On 2020-10-20 01:32, Andres Freund wrote:
> > How does this deal with row types with a field that doesn't have a hash
> > function? Erroring out at runtime could cause queries that used to
> > succeed, e.g. because all fields have btree ops, to fail, if we just have
> > a generic unconditionally present hash opclass?  Is that an OK
> > "regression"?
>
> Good point.  There is actually code in the type cache that is supposed
> to handle that, so I'll need to adjust that.

Do we need to worry about what happens if somebody modifies the
opclass/opfamily definitions?

-- 
Robert Haas
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