I think "best_inner_indexscan()" in the following comment in tidpath.c
is obsolete.
* There is currently no special support for joins involving CTID; in
* particular nothing corresponding to best_inner_indexscan(). Since it's
* not very useful to store TIDs of one table in another table, there
* doesn't seem to be enough use-case to justify adding a lot of code
* for that.
How about s/best_inner_indexscan()/parameterized scans/?
Best regards,
Etsuro Fujita