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0595-Fix-erroneous-aborts-when-using-index-plug...
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File 0595-Fix-erroneous-aborts-when-using-index-plugins-ERL-55.patch of Package erlang
From fabd7fc883834982417219d4ace57e257e5f9892 Mon Sep 17 00:00:00 2001 From: Ulf Wiger <ulf@feuerlabs.com> Date: Tue, 30 Jan 2018 08:10:05 +0100 Subject: [PATCH] Fix erroneous aborts when using index plugins (ERL-556) - first stab at fixing index_[read|match_object] w plugins - do not include index plugins at match ops - add index_plugin_test_suite - Increase ix plugin test coverage + bug fix --- lib/mnesia/src/mnesia.erl | 74 +++++++- lib/mnesia/src/mnesia_index.erl | 44 +++-- lib/mnesia/test/Makefile | 3 +- lib/mnesia/test/mnesia_SUITE.erl | 3 +- lib/mnesia/test/mnesia_index_plugin_test.erl | 261 +++++++++++++++++++++++++++ lib/mnesia/test/mt.erl | 1 + 6 files changed, 360 insertions(+), 26 deletions(-) create mode 100644 lib/mnesia/test/mnesia_index_plugin_test.erl diff --git a/lib/mnesia/src/mnesia.erl b/lib/mnesia/src/mnesia.erl index 77afb8250c..02bc884e36 100644 --- a/lib/mnesia/src/mnesia.erl +++ b/lib/mnesia/src/mnesia.erl @@ -160,7 +160,7 @@ {'sync_transaction', Retries::non_neg_integer()}. -type table() :: atom(). -type storage_type() :: 'ram_copies' | 'disc_copies' | 'disc_only_copies'. --type index_attr() :: atom() | non_neg_integer(). +-type index_attr() :: atom() | non_neg_integer() | {atom()}. -type write_locks() :: 'write' | 'sticky_write'. -type read_locks() :: 'read'. -type lock_kind() :: write_locks() | read_locks(). @@ -1277,6 +1277,14 @@ match_object(Tid, Ts, Tab, Pat, LockKind) match_object(_Tid, _Ts, Tab, Pat, _LockKind) -> abort({bad_type, Tab, Pat}). +add_written_index(Store, Pos, Tab, Key, Objs) when is_integer(Pos) -> + Pat = setelement(Pos, val({Tab, wild_pattern}), Key), + add_written_match(Store, Pat, Tab, Objs); +add_written_index(Store, Pos, Tab, Key, Objs) when is_tuple(Pos) -> + IxF = mnesia_index:index_vals_f(val({Tab, storage_type}), Tab, Pos), + Ops = find_ops(Store, Tab, '_'), + add_ix_match(Ops, Objs, IxF, Key, val({Tab, setorbag})). + add_written_match(S, Pat, Tab, Objs) -> Ops = find_ops(S, Tab, Pat), FixedRes = add_match(Ops, Objs, val({Tab, setorbag})), @@ -1303,6 +1311,46 @@ add_match([{_Oid, Val, write}|R], Objs, bag) -> add_match([{Oid, Val, write}|R], Objs, set) -> add_match(R, [Val | deloid(Oid,Objs)],set). +add_ix_match([], Objs, _IxF, _Key, _Type) -> + Objs; +add_ix_match(Written, Objs, IxF, Key, ordered_set) -> + %% Must use keysort which is stable + add_ordered_match(lists:keysort(1, ix_filter_ops(IxF, Key, Written)), Objs, []); +add_ix_match([{Oid, _, delete}|R], Objs, IxF, Key, Type) -> + add_ix_match(R, deloid(Oid, Objs), IxF, Key, Type); +add_ix_match([{_Oid, Val, delete_object}|R], Objs, IxF, Key, Type) -> + case ix_match(Val, IxF, Key) of + true -> + add_ix_match(R, lists:delete(Val, Objs), IxF, Key, Type); + false -> + add_ix_match(R, Objs, IxF, Key, Type) + end; +add_ix_match([{_Oid, Val, write}|R], Objs, IxF, Key, bag) -> + case ix_match(Val, IxF, Key) of + true -> + add_ix_match(R, [Val | lists:delete(Val, Objs)], IxF, Key, bag); + false -> + add_ix_match(R, Objs, IxF, Key, bag) + end; +add_ix_match([{Oid, Val, write}|R], Objs, IxF, Key, set) -> + case ix_match(Val, IxF, Key) of + true -> + add_ix_match(R, [Val | deloid(Oid,Objs)],IxF,Key,set); + false -> + add_ix_match(R, Objs, IxF, Key, set) + end. + +ix_match(Val, IxF, Key) -> + lists:member(Key, IxF(Val)). + +ix_filter_ops(IxF, Key, Ops) -> + lists:filter( + fun({_Oid, Obj, write}) -> + ix_match(Obj, IxF, Key); + (_) -> + true + end, Ops). + %% For ordered_set only !! add_ordered_match(Written = [{{_, Key}, _, _}|_], [Obj|Objs], Acc) when Key > element(2, Obj) -> @@ -1641,6 +1689,16 @@ index_match_object(Tid, Ts, Tab, Pat, Attr, LockKind) dirty_index_match_object(Tab, Pat, Attr); % Should be optimized? tid -> case mnesia_schema:attr_tab_to_pos(Tab, Attr) of + {_} -> + case LockKind of + read -> + Store = Ts#tidstore.store, + mnesia_locker:rlock_table(Tid, Store, Tab), + Objs = dirty_match_object(Tab, Pat), + add_written_match(Store, Pat, Tab, Objs); + _ -> + abort({bad_type, Tab, LockKind}) + end; Pos when Pos =< tuple_size(Pat) -> case LockKind of read -> @@ -1688,8 +1746,8 @@ index_read(Tid, Ts, Tab, Key, Attr, LockKind) false -> Store = Ts#tidstore.store, Objs = mnesia_index:read(Tid, Store, Tab, Key, Pos), - Pat = setelement(Pos, val({Tab, wild_pattern}), Key), - add_written_match(Store, Pat, Tab, Objs); + add_written_index( + Ts#tidstore.store, Pos, Tab, Key, Objs); true -> abort({bad_type, Tab, Attr, Key}) end; @@ -1825,7 +1883,7 @@ remote_dirty_match_object(Tab, Pat) -> false -> mnesia_lib:db_match_object(Tab, Pat); true -> - PosList = val({Tab, index}), + PosList = regular_indexes(Tab), remote_dirty_match_object(Tab, Pat, PosList) end. @@ -1857,7 +1915,7 @@ remote_dirty_select(Tab, Spec) -> false -> mnesia_lib:db_select(Tab, Spec); true -> - PosList = val({Tab, index}), + PosList = regular_indexes(Tab), remote_dirty_select(Tab, Spec, PosList) end; _ -> @@ -1924,6 +1982,8 @@ dirty_index_match_object(Pat, _Attr) -> dirty_index_match_object(Tab, Pat, Attr) when is_atom(Tab), Tab /= schema, is_tuple(Pat), tuple_size(Pat) > 2 -> case mnesia_schema:attr_tab_to_pos(Tab, Attr) of + {_} -> + dirty_match_object(Tab, Pat); Pos when Pos =< tuple_size(Pat) -> case has_var(element(2, Pat)) of false -> @@ -3254,3 +3314,7 @@ put_activity_id(Activity) -> mnesia_tm:put_activity_id(Activity). put_activity_id(Activity,Fun) -> mnesia_tm:put_activity_id(Activity,Fun). + +regular_indexes(Tab) -> + PosList = val({Tab, index}), + [P || P <- PosList, is_integer(P)]. diff --git a/lib/mnesia/src/mnesia_index.erl b/lib/mnesia/src/mnesia_index.erl index 098265d5fc..6f1c21e3b9 100644 --- a/lib/mnesia/src/mnesia_index.erl +++ b/lib/mnesia/src/mnesia_index.erl @@ -14,7 +14,7 @@ %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %% See the License for the specific language governing permissions and %% limitations under the License. -%% +%% %% %CopyrightEnd% %% @@ -37,7 +37,7 @@ db_match_erase/2, get_index_table/2, get_index_table/3, - + tab2filename/2, init_index/2, init_indecies/3, @@ -45,6 +45,7 @@ del_transient/3, del_index_table/3, + index_vals_f/3, index_info/2, ext_index_instances/1]). @@ -60,9 +61,14 @@ read(Tid, Store, Tab, IxKey, Pos) -> ResList = mnesia_locker:ixrlock(Tid, Store, Tab, IxKey, Pos), %% Remove all tuples which don't include Ixkey, happens when Tab is a bag case val({Tab, setorbag}) of - bag -> + bag when is_integer(Pos) -> mnesia_lib:key_search_all(IxKey, Pos, ResList); - _ -> + bag when is_tuple(Pos) -> + TabStorage = val({Tab, storage_type}), + ValsF = index_vals_f(TabStorage, Tab, Pos), + [Obj || Obj <- ResList, + lists:member(IxKey, ValsF(Obj))]; + _ -> ResList end. @@ -136,7 +142,7 @@ del_object_index2([], _, _Storage, _Tab, _K, _Obj) -> ok; del_object_index2([{{Pos, Type}, Ixt} | Tail], SoB, Storage, Tab, K, Obj) -> ValsF = index_vals_f(Storage, Tab, Pos), case SoB of - bag -> + bag -> del_object_bag(Type, ValsF, Tab, K, Obj, Ixt); _ -> %% If set remove the tuple in index table del_ixes(Type, Ixt, ValsF, Obj, K) @@ -197,7 +203,7 @@ merge([], _, _, Ack) -> realkeys(Tab, Pos, IxKey) -> Index = get_index_table(Tab, Pos), db_get(Index, IxKey). % a list on the form [{IxKey, RealKey1} , .... - + dirty_select(Tab, Spec, Pos) when is_integer(Pos) -> %% Assume that we are on the node where the replica is %% Returns the records without applying the match spec @@ -233,7 +239,7 @@ dirty_read2(Tab, IxKey, Pos) -> end, Acc, mnesia_lib:db_get(Storage, Tab, K)) end, [], Keys)). -pick_index([{{{Pfx,_},IxType}, Ixt}|_], _Tab, {_} = Pfx) -> +pick_index([{{{Pfx,_,_},IxType}, Ixt}|_], _Tab, {_} = Pfx) -> {IxType, Ixt}; pick_index([{{Pos,IxType}, Ixt}|_], _Tab, Pos) -> {IxType, Ixt}; @@ -242,7 +248,7 @@ pick_index([_|T], Tab, Pos) -> pick_index([], Tab, Pos) -> mnesia:abort({no_exist, Tab, {index, Pos}}). - + %%%%%%% Creation, Init and deletion routines for index tables %% We can have several indexes on the same table @@ -387,12 +393,12 @@ init_ext_index(Tab, Storage, Alias, Mod, [{Pos,Type} | Tail]) -> create_fun(Cont, Tab, Pos) -> IxF = index_vals_f(disc_only_copies, Tab, Pos), fun(read) -> - Data = + Data = case Cont of {start, KeysPerChunk} -> mnesia_lib:db_init_chunk( disc_only_copies, Tab, KeysPerChunk); - '$end_of_table' -> + '$end_of_table' -> '$end_of_table'; _Else -> mnesia_lib:db_chunk(disc_only_copies, Cont) @@ -462,7 +468,7 @@ add_index_info(Tab, SetOrBag, IxElem) -> %% Check later if mnesia_tm is sensitive about the order mnesia_lib:set({Tab, index_info}, IndexInfo), mnesia_lib:set({Tab, index}, index_positions(IndexInfo)), - mnesia_lib:set({Tab, commit_work}, + mnesia_lib:set({Tab, commit_work}, mnesia_lib:sort_commit([IndexInfo | Commit])); {value, Old} -> %% We could check for consistency here @@ -470,7 +476,7 @@ add_index_info(Tab, SetOrBag, IxElem) -> mnesia_lib:set({Tab, index_info}, Index), mnesia_lib:set({Tab, index}, index_positions(Index)), NewC = lists:keyreplace(index, 1, Commit, Index), - mnesia_lib:set({Tab, commit_work}, + mnesia_lib:set({Tab, commit_work}, mnesia_lib:sort_commit(NewC)) end. @@ -488,19 +494,19 @@ del_index_info(Tab, Pos) -> element(1,P)=/=Pos end, Old#index.pos_list) of - [] -> + [] -> IndexInfo = index_info(Old#index.setorbag,[]), mnesia_lib:set({Tab, index_info}, IndexInfo), mnesia_lib:set({Tab, index}, index_positions(IndexInfo)), NewC = lists:keydelete(index, 1, Commit), - mnesia_lib:set({Tab, commit_work}, + mnesia_lib:set({Tab, commit_work}, mnesia_lib:sort_commit(NewC)); New -> Index = Old#index{pos_list = New}, mnesia_lib:set({Tab, index_info}, Index), mnesia_lib:set({Tab, index}, index_positions(Index)), NewC = lists:keyreplace(index, 1, Commit, Index), - mnesia_lib:set({Tab, commit_work}, + mnesia_lib:set({Tab, commit_work}, mnesia_lib:sort_commit(NewC)) end end. @@ -537,7 +543,7 @@ db_match_erase({{ext,_,_} = Ext, Ixt}, Pat) -> mnesia_lib:db_match_erase(Ext, Ixt, Pat); db_match_erase({dets, Ixt}, Pat) -> ok = dets:match_delete(Ixt, Pat). - + db_select({ram, Ixt}, Pat) -> ets:select(Ixt, Pat); db_select({{ext,_,_} = Ext, Ixt}, Pat) -> @@ -545,7 +551,7 @@ db_select({{ext,_,_} = Ext, Ixt}, Pat) -> db_select({dets, Ixt}, Pat) -> dets:select(Ixt, Pat). - + get_index_table(Tab, Pos) -> get_index_table(Tab, val({Tab, storage_type}), Pos). diff --git a/lib/mnesia/test/Makefile b/lib/mnesia/test/Makefile index 5b61b1af65..b43bc82801 100644 --- a/lib/mnesia/test/Makefile +++ b/lib/mnesia/test/Makefile @@ -53,7 +53,8 @@ MODULES= \ mnesia_measure_test \ mnesia_cost \ mnesia_dbn_meters \ - ext_test + ext_test \ + mnesia_index_plugin_test DocExamplesDir := ../doc/src/ diff --git a/lib/mnesia/test/mnesia_SUITE.erl b/lib/mnesia/test/mnesia_SUITE.erl index 24c1def6da..b41bf22efa 100644 --- a/lib/mnesia/test/mnesia_SUITE.erl +++ b/lib/mnesia/test/mnesia_SUITE.erl @@ -69,12 +69,13 @@ groups() -> %% covered. [{light, [], [{group, install}, {group, nice}, {group, evil}, - {group, mnesia_frag_test, light}, {group, qlc}, + {group, mnesia_frag_test, light}, {group, qlc}, {group, index_plugins}, {group, registry}, {group, config}, {group, examples}]}, {install, [], [{mnesia_install_test, all}]}, {nice, [], [{mnesia_nice_coverage_test, all}]}, {evil, [], [{mnesia_evil_coverage_test, all}]}, {qlc, [], [{mnesia_qlc_test, all}]}, + {index_plugins, [], [{mnesia_index_plugin_test, all}]}, {registry, [], [{mnesia_registry_test, all}]}, {config, [], [{mnesia_config_test, all}]}, {examples, [], [{mnesia_examples_test, all}]}, diff --git a/lib/mnesia/test/mnesia_index_plugin_test.erl b/lib/mnesia/test/mnesia_index_plugin_test.erl new file mode 100644 index 0000000000..44fe047c50 --- /dev/null +++ b/lib/mnesia/test/mnesia_index_plugin_test.erl @@ -0,0 +1,261 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% + +%% +-module(mnesia_index_plugin_test). +-author('ulf@wiger.net'). + +-export([init_per_testcase/2, end_per_testcase/2, + init_per_group/2, end_per_group/2, + init_per_suite/1, end_per_suite/1, + all/0, groups/0]). + +-export([ + add_rm_plugin/1, + tab_with_plugin_index/1, + tab_with_multiple_plugin_indexes/1, + ix_match_w_plugin/1, + ix_match_w_plugin_ordered/1, + ix_match_w_plugin_bag/1 + ]). + +-export([ix_prefixes/3, % test plugin + ix_prefixes2/3]). % test plugin 2 + +-include("mnesia_test_lib.hrl"). + +init_per_suite(Conf) -> + Conf. + +end_per_suite(Conf) -> + Conf. + +init_per_testcase(Func, Conf) -> + mnesia_test_lib:init_per_testcase(Func, Conf). + +end_per_testcase(Func, Conf) -> + mnesia_test_lib:end_per_testcase(Func, Conf). + +all() -> + [add_rm_plugin, + tab_with_plugin_index, + tab_with_multiple_plugin_indexes, + ix_match_w_plugin, + ix_match_w_plugin_ordered, + ix_match_w_plugin_bag]. + +groups() -> + []. + +init_per_group(_GroupName, Config) -> + Config. + +end_per_group(_GroupName, Config) -> + Config. + + +add_rm_plugin(suite) -> []; +add_rm_plugin(Config) when is_list(Config) -> + [N1, N2] = Nodes = ?acquire_nodes(2, Config), + ok = add_plugin(), + ok = rpc_check_plugin(N1), + ok = rpc_check_plugin(N2), + ok = add_plugin2(), + ok = del_plugin(), + ok = del_plugin2(), + ok = add_plugin(), + ok = add_plugin2(), + ok = del_plugin(), + ok = del_plugin2(), + ?verify_mnesia(Nodes, []). + +-define(PLUGIN1, {{pfx},?MODULE,ix_prefixes}). +-define(PLUGIN2, {{pfx2},?MODULE,ix_prefixes2}). + +add_plugin() -> + {atomic, ok} = mnesia_schema:add_index_plugin({pfx}, ?MODULE, ix_prefixes), + [?PLUGIN1] = mnesia_schema:index_plugins(), + ok. + +add_plugin2() -> + {atomic, ok} = mnesia_schema:add_index_plugin({pfx2}, ?MODULE, ix_prefixes2), + [?PLUGIN1, ?PLUGIN2] = lists:sort(mnesia_schema:index_plugins()), + ok. + +del_plugin() -> + {atomic, ok} = mnesia_schema:delete_index_plugin({pfx}), + [?PLUGIN2] = mnesia_schema:index_plugins(), + ok. + +del_plugin2() -> + {atomic, ok} = mnesia_schema:delete_index_plugin({pfx2}), + [] = mnesia_schema:index_plugins(), + ok. + +rpc_check_plugin(N) -> + [?PLUGIN1] = + rpc:call(N, mnesia_schema, index_plugins, []), + ok. + +tab_with_plugin_index(suite) -> []; +tab_with_plugin_index(Config) when is_list(Config) -> + [_N1] = Nodes = ?acquire_nodes(1, Config), + ok = add_plugin(), + {atomic, ok} = mnesia:create_table(t, [{attributes, [k,v1,v2]}, + {index, [{{pfx}, ordered}, + {v1, ordered}, + v2]}]), + [ok,ok,ok,ok] = + [mnesia:dirty_write({t, K, V1, V2}) + || {K,V1,V2} <- [{1,a,"123"}, + {2,b,"12345"}, + {3,c,"6789"}, + {4,d,nil}]], + [{t,1,a,"123"},{t,2,b,"12345"}] = + mnesia:dirty_index_read(t,<<"123">>,{pfx}), + [{t,3,c,"6789"}] = + mnesia:dirty_index_read(t,"6789",v2), + [{t,1,a,"123"}] = + mnesia:dirty_match_object({t,'_',a,"123"}), + [{t,1,a,"123"}] = + mnesia:dirty_select(t, [{ {t,'_',a,"123"}, [], ['$_']}]), + mnesia:dirty_delete(t,2), + [{t,1,a,"123"}] = + mnesia:dirty_index_read(t,<<"123">>,{pfx}), + ?verify_mnesia(Nodes, []). + +tab_with_multiple_plugin_indexes(suite) -> []; +tab_with_multiple_plugin_indexes(Config) when is_list(Config) -> + [_N1] = Nodes = ?acquire_nodes(1, Config), + ok = add_plugin(), + ok = add_plugin2(), + {atomic, ok} = + mnesia:create_table(u, [{attributes, [k,v1,v2]}, + {index, [{{pfx}, ordered}, + {{pfx2}, ordered}]}]), + [ok,ok,ok,ok] = + [mnesia:dirty_write({u, K, V1, V2}) + || {K,V1,V2} <- [{1,a,"123"}, + {2,b,"12345"}, + {3,c,"6789"}, + {4,d,nil}]], + [{u,1,a,"123"},{u,2,b,"12345"}] = + mnesia:dirty_index_read(u,<<"123">>,{pfx}), + [{u,1,a,"123"},{u,2,b,"12345"}] = + mnesia:dirty_index_read(u,<<"321">>,{pfx2}), + ?verify_mnesia(Nodes, []). + +ix_match_w_plugin(suite) -> []; +ix_match_w_plugin(Config) when is_list(Config) -> + [_N1] = Nodes = ?acquire_nodes(1, Config), + ok = add_plugin(), + {atomic, ok} = mnesia:create_table(im1, [{attributes, [k, v1, v2]}, + {index, [{{pfx}, ordered}, + {v1, ordered}]}]), + fill_and_test_index_match(im1, set), + ?verify_mnesia(Nodes, []). + + +ix_match_w_plugin_ordered(suite) -> []; +ix_match_w_plugin_ordered(Config) when is_list(Config) -> + [_N1] = Nodes = ?acquire_nodes(1, Config), + ok = add_plugin(), + {atomic, ok} = mnesia:create_table(im2, [{attributes, [k, v1, v2]}, + {type, ordered_set}, + {index, [{{pfx}, ordered}, + {v1, ordered}]}]), + fill_and_test_index_match(im2, ordered_set), + ?verify_mnesia(Nodes, []). + +ix_match_w_plugin_bag(suite) -> []; +ix_match_w_plugin_bag(Config) when is_list(Config) -> + [_N1] = Nodes = ?acquire_nodes(1, Config), + ok = add_plugin(), + {atomic, ok} = mnesia:create_table(im3, [{attributes, [k, v1, v2]}, + {type, bag}, + {index, [{{pfx}, ordered}, + {v1, ordered}]}]), + fill_and_test_index_match(im3, bag), + ?verify_mnesia(Nodes, []). + +fill_and_test_index_match(Tab, Type) -> + [ok,ok,ok,ok,ok,ok,ok,ok,ok] = + [mnesia:dirty_write({Tab, K, V1, V2}) + || {K,V1,V2} <- [{1,a,"123"}, + {2,b,"12345"}, + {3,c,"123"}, + {4,d,nil}, + {5,e,nil}, + {6,f,nil}, + {7,g,nil}, %% overwritten if not bag + {7,g,"234"}, + {8,h,"123"}]], + mnesia:activity( + transaction, + fun() -> + ok = mnesia:write({Tab, 1, aa, "1234"}), %% replaces if not bag + ok = mnesia:delete({Tab, 2}), + ok = mnesia:delete({Tab, 4}), + ok = mnesia:write({Tab, 6, ff, nil}), + ok = mnesia:write({Tab, 7, gg, "123"}), + ok = mnesia:write({Tab, 100, x, nil}), + ok = mnesia:delete_object({Tab,3,c,"123"}), + ok = mnesia:delete_object({Tab,5,e,nil}), + Res = mnesia:index_read(Tab, <<"123">>, {pfx}), + SetRes = [{Tab,1,aa,"1234"}, {Tab,7,gg,"123"}, {Tab,8,h,"123"}], + case Type of + set -> + SetRes = lists:sort(Res); + ordered_set -> + SetRes = Res; + bag -> + [{Tab,1,a,"123"}, {Tab,1,aa,"1234"}, + {Tab,7,gg,"123"}, {Tab,8,h,"123"}] = lists:sort(Res) + end + end). + +%% ============================================================ +%% +ix_prefixes(_Tab, _Pos, Obj) -> + lists:foldl( + fun(V, Acc) when is_list(V) -> + try Pfxs = prefixes(list_to_binary(V)), + Pfxs ++ Acc + catch + error:_ -> + Acc + end; + (V, Acc) when is_binary(V) -> + Pfxs = prefixes(V), + Pfxs ++ Acc; + (_, Acc) -> + Acc + end, [], tl(tuple_to_list(Obj))). + +ix_prefixes2(Tab, Pos, Obj) -> + [rev(P) || P <- ix_prefixes(Tab, Pos, Obj)]. + +rev(B) when is_binary(B) -> + list_to_binary(lists:reverse(binary_to_list(B))). + +prefixes(<<P:3/binary, _/binary>>) -> + [P]; +prefixes(_) -> + []. diff --git a/lib/mnesia/test/mt.erl b/lib/mnesia/test/mt.erl index 5a981bf539..037d6adb38 100644 --- a/lib/mnesia/test/mt.erl +++ b/lib/mnesia/test/mt.erl @@ -67,6 +67,7 @@ alias(recovery) -> mnesia_recovery_test; alias(registry) -> mnesia_registry_test; alias(suite) -> mnesia_SUITE; alias(trans) -> mnesia_trans_access_test; +alias(ixp) -> mnesia_index_plugin_test; alias(Other) -> Other. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -- 2.16.4
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