According to the manual there are 4 types of ETS tables: set – The table is a set table: one key, one object, no order among objects. This is the default
plane
setuid
office-scripts
xrdp
motionbuilder
suffix
globus-toolkit
ssl-certificate
uipagecontrol
messageui
poi-5.1
swiftui-datepicker
roundcube
security-certificate
google-cloud-monitoring
depth
mapper
launchpad
r-package
runtime-permissions
appsflyer
capturing-group
polymodel
svnignore
g1gc
record
mnemonics
type-families
xsb
auditwheel