On 16/12/2021, at 2:43 PM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote: > Of course what this function is actually returning is numeric[]. > There is some code such as array_out that will look at the > element type OID embedded in the array value, and do the right > thing. But other code will believe the function's declared > result type, and that sort of code will go wrong. (Hand slap to face!) Oh my, thank you for spotting that, this has been driving me to distraction, thinking I was doing something wrong with memory contexts or anything other than that copy/paste error. > Alternatively you can declare one set of polymorphic > functions and aggregates, in which case you'll need to closely > study the stuff about the finalfunc_extra option [2]. Thanks for the tips, I have been eyeing that documentation. — m@
