[erlang-questions] ets:match_delete
Tobias
tobias.rodaebel@REDACTED
Tue Jun 7 17:43:49 CEST 2011
Hi Roberto,
have you tried
N = ets:select_delete(test, [{{'$1', '$2', '$3', '$4'}, [{'>', '$2', 2}], [true]}]),
instead?
Cheers,
Tobias
On Jun 7, 2011, at 5:33 PM, Roberto Ostinelli wrote:
> dear list,
>
> i'm trying to match delete elements from an ETS table which have one of the tuple elements greater than 2.
>
> start() ->
> ets:new(test, [named_table, set, protected]),
> ets:insert(test, {a, 1, true, true}),
> ets:insert(test, {b, 2, true, true}),
> ets:insert(test, {c, 3, true, true}),
> ets:insert(test, {d, 2, true, true}),
> ets:insert(test, {e, 1, true, true}),
> ets:match_delete(test, [{['_', '$1', '_', '_'], [{'>', '$1', 2}], []}]),
> Result = ets:tab2list(test),
> ets:delete(test),
> Result.
>
> this however does return the whole table.
>
> any hints on what i'm doing wrong?
>
> r.
> _______________________________________________
> erlang-questions mailing list
> erlang-questions@REDACTED
> http://erlang.org/mailman/listinfo/erlang-questions
More information about the erlang-questions
mailing list