Luca Ferrari <fluca1978@infinito.it> writes:
> apologize if this is a trivial question but I'd like to understand what values
> are stored in the RelOptInfo->reltargetlist or, better, how I can check such
> values in the information schema to understand what they refer to. I've tried
> to look in the pg_attribute table but I was not able to find a match. In other
> words, how can I check what is the oid of the listcell pointing to in the
> database schema?
That list doesn't contain OIDs ... it contains Var nodes.
regards, tom lane