match_delete and fun2ms

[Max Lapshin]

Is it possible to delete entries from ets, basing on fun2ms spec?


Spec = ets:fun2ms(fun(#video_frame{dts = TS} ) when TS < Limit ->
   true
end),
Count = ets:select_count(Frames, Spec),
ets:match_delete(Frames, Spec)

This code shows me increasing Count, but doesn't delete anything.