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dbms: add tests for sequenceCount and sequenceMatch, fix infinite loop for sequenceCount of empty pattern, fix decltype deducing reference type [#METR-17427]

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This commit is contained in:
Andrey Mironov 2015-09-07 17:50:02 +03:00
parent 2311c69d53
commit f8b21b5fd6
3 changed files with 100 additions and 3 deletions
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10
dbms/include/DB/AggregateFunctions/AggregateFunctionSequenceMatch.h
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@ -346,17 +346,18 @@ private:
} }
protected: protected:
template <typename T1, typename T2> template <typename T>
bool match(T1 & events_it, const T2 events_end) const bool match(T & events_it, const T events_end) const
{ {
const auto action_begin = std::begin(actions); const auto action_begin = std::begin(actions);
const auto action_end = std::end(actions); const auto action_end = std::end(actions);
auto action_it = action_begin; auto action_it = action_begin;
const auto events_begin = events_it;
auto base_it = events_it; auto base_it = events_it;
/// an iterator to action plus an iterator to row in events list plus timestamp at the start of sequence /// an iterator to action plus an iterator to row in events list plus timestamp at the start of sequence
using backtrack_info = std::tuple<decltype(action_it), decltype(events_it), decltype(base_it)>; using backtrack_info = std::tuple<decltype(action_it), T, T>;
std::stack<backtrack_info> back_stack; std::stack<backtrack_info> back_stack;
/// backtrack if possible /// backtrack if possible
@ -473,6 +474,9 @@ protected:
++action_it; ++action_it;
} }
if (events_it == events_begin)
++events_it;
return action_it == action_end; return action_it == action_end;
} }

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dbms/tests/queries/0_stateless/00222_sequence_aggregate_function_family.reference Normal file
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51
dbms/tests/queries/0_stateless/00222_sequence_aggregate_function_family.sql Normal file
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@ -0,0 +1,51 @@
drop table if exists sequence_test;
create table sequence_test (time UInt32, data UInt8) engine=Memory;
insert into sequence_test values (0,0),(1,0),(2,0),(3,0),(4,1),(5,2),(6,0),(7,0),(8,0),(9,0),(10,1),(11,1);
select 1 = sequenceMatch('')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('.')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('.*')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceMatch('(?4)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?1)(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceMatch('(?1)(?1)(?1)(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?1)(?1)(?1)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?t>10)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceMatch('(?1)(?t>11)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?t<11)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?t<3)(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?1)(?t<=2)(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceMatch('(?1)(?t<2)(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?2)(?t>=7)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceMatch('(?2)(?t>7)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceMatch('(?2)(?3)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select count() = sequenceCount('')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select count() = sequenceCount('.')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select count() = sequenceCount('.*')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 8 = sequenceCount('(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 3 = sequenceCount('(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceCount('(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceCount('(?4)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 4 = sequenceCount('(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 2 = sequenceCount('(?1)(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 2 = sequenceCount('(?1)(?1)(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceCount('(?1)(?1)(?1)(?1)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 2 = sequenceCount('(?1)(?1)(?1)(?1)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceCount('(?1)(?t>10)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceCount('(?1)(?t>11)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 2 = sequenceCount('(?1)(?t<11)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceCount('(?1)(?t<3)(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceCount('(?1)(?t<=2)(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceCount('(?1)(?t<2)(?3)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceCount('(?2)(?t>=7)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 0 = sequenceCount('(?2)(?t>7)(?2)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
select 1 = sequenceCount('(?2)(?3)(?1)')(toDateTime(time), data = 0, data = 1, data = 2, data = 3) from sequence_test;
drop table sequence_test;