It would be nice to be able to have the files in the docker-entrypoint-initdb.d in any directory structure and have only a few files in the root of the directory, then use \ir inside them.
This line prevents one from doing that

*.sql)    echo "$0: running $f"; "${psql[@]}" < "$f"; echo ;;

If it's changed to

*.sql)    echo "$0: running $f"; "${psql[@]}" -f "$f"; echo ;;

then everything works.

I can submit a PR, i just need to know do you need all the entrypoints files for all versions modified or is there a process that the one at the top is copied everywhere?