Per recent discussion on pgadmin-support ("index only scans are not shown graphically"),
JFO> Insert JFO> Update JFO> Delete JFO> Foreign Scan JFO> Index Only Scan JFO> BitmapAnd JFO> BitmapOr JFO> Values Scan (shows up as a Seq Scan) JFO> LockRows + Merge Append.
Please note, that besides 10 new icons there are two icons for existing nodes in the attachment, Bitmap Heap Scan and Bitmap Index Scan. I've changed them for unity with BitmapOr, BitmapAnd, which hopefully will result in an intuitive understanding of the concept by users. But I was thinking of bitmap index scans as an analogue for Oracle's bitmap indexes. Then I've read explanations by Tom Lane http://www.postgresql.org/message-id/12553.1135634231@sss.pgh.pa.us and it appears that Postgres doesn't build literally a chain of 0's and 1's, but an array of tuple pointers. Nevertheless, if it is possible, I'd like these two icons to be committed too. You decide :)
Indeed, they look great. I'm more reserved on the index only scan pic, but it's way better than what we have now :)