Re: BUG #17994: Invalidating relcache corrupts tupDesc inside ExecEvalFieldStoreDeForm()

Andrew Dunstan <andrew@dunslane.net> writes:

On 2023-06-29 Th 15:25, Tom Lane wrote:

Maybe we should bite the bullet and provide
invalidation based on a pg_type inval callback.

Yeah, Robert has just convinced me, so I'll do it like that. It doesn't 
look too hard.

Oh, I have a better idea.  We're only going to need all this for
pass-by-ref types, right?  

Yes, the value we get back for byval types isn't a pointer that might disappear.

Why not make the hash key be the value
itself?  Wrap it in a bytea perhaps to avoid needing a bespoke
hash function.
			

Not sure I understand.

cheers

andrew

--
Andrew Dunstan
EDB: https://www.enterprisedb.com