Jeff Janes <jeff(dot)janes(at)gmail(dot)com> writes:
> What if something like this was made to work?
> select '{"3":5}'::jsonb operator("pg_catalog"."?") '3';
> (Where the double quotes around the ? would be tolerated, which they
> currently are not)
> Is there a reason it can't be made to work?
It could be made to work, I'm sure, but I fail to see why any user
would prefer to write that over ?? or \? or {?} or pretty much any
of the other notations that've been suggested. It's ten times as
many keystrokes ...
regards, tom lane