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-rw-r--r--lib/mnesia/src/mnesia_index.erl9
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/mnesia/src/mnesia_index.erl b/lib/mnesia/src/mnesia_index.erl
index f9f3ce2ea4..11e729f565 100644
--- a/lib/mnesia/src/mnesia_index.erl
+++ b/lib/mnesia/src/mnesia_index.erl
@@ -301,7 +301,12 @@ make_ram_index(Tab, [Pos | Tail]) ->
add_ram_index(Tab, Pos) when is_integer(Pos) ->
verbose("Creating index for ~w ~n", [Tab]),
- Index = mnesia_monitor:mktab(mnesia_index, [bag, public]),
+ SetOrBag = val({Tab, setorbag}),
+ IndexType = case SetOrBag of
+ set -> duplicate_bag;
+ bag -> bag
+ end,
+ Index = mnesia_monitor:mktab(mnesia_index, [IndexType, public]),
Insert = fun(Rec, _Acc) ->
true = ?ets_insert(Index, {element(Pos, Rec), element(2, Rec)})
end,
@@ -309,7 +314,7 @@ add_ram_index(Tab, Pos) when is_integer(Pos) ->
true = ets:foldl(Insert, true, Tab),
mnesia_lib:db_fixtable(ram_copies, Tab, false),
mnesia_lib:set({Tab, {index, Pos}}, Index),
- add_index_info(Tab, val({Tab, setorbag}), {Pos, {ram, Index}});
+ add_index_info(Tab, SetOrBag, {Pos, {ram, Index}});
add_ram_index(_Tab, snmp) ->
ok.