Using ETS Select To Form An Intersection

Posted by Ruhi on Stack Overflow See other posts from Stack Overflow or by Ruhi
Published on 2010-04-27T22:15:30Z Indexed on 2010/04/28 0:33 UTC
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erlang

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ets

|

set

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intersection

i have the following ets structure:

SomeTable = ets:new(sometable, [bag]).
ets:insert(SomeTable, [
                        {set1,item1},
                        {set1,item2},
                        {set1,item3},
                        {set2,item1},
                        {set2,item2},
                        {set2,item4}]).

i want to get intersection of set1 and set2 using ets:select and fun2ms, result will be [item1, item2].

i spent hours and hours trying to accomplist it with ets:select and fun2ms with no success. can you help me out using ets:select and fun2ms?

thanks for all answers!

ps: i know about sets module, but i have to use ets and this exact data structure.

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