FYI the SearchSysCacheTupleCopy call that I was objecting to was in
function has_inheritors. Looks like you clearly are on the right track
with the patch. There is some tricky code in there, and it looks pretty
good.
>
> Attached is a patch for the ONLY inheritance
> functionality...
>
> *) It includes a SET compatibility mode.
> *) The overhead for non-inheritance has
> been cut down to 30 microseconds (on a pc).
> *) It needs an initdb.
>
> Comments welcome.
>
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