On 2022-Mar-17, Alvaro Herrera wrote:
> I'll see what to do about Instrumentation->nfiltered{1,2,3} that was
> complained about by Andres upthread. Maybe some additional macros will
> help.
This turns out not to be as simple as I expected, mostly because we want
to keep Instrumentation as a node-agnostic struct. Things are already a
bit wonky with nfiltered/nfiltered2, and the addition of nfiltered3
makes things a lot uglier, and my impulse of using a union to separate
what is used for scans/joins vs. what is used for MERGE results in an
even more node-specific definition rather than the other way around.
Looking at the history I came across this older thread where this was
discussed
https://postgr.es/m/20180409215851.idwc75ct2bzi6tea@alvherre.pgsql
particularly this message from Robert,
https://www.postgresql.org/message-id/CA%2BTgmoaE3R6%3DV0G6zbht2L_LE%2BTsuYuSTPJXjLW%2B9_tpMGubZQ%40mail.gmail.com
I'll keep looking at this in the coming days, see if I can come up with
something sensible.
--
Álvaro Herrera 39°49'30"S 73°17'W — https://www.EnterpriseDB.com/
Y una voz del caos me habló y me dijo
"Sonríe y sé feliz, podría ser peor".
Y sonreí. Y fui feliz.
Y fue peor.