1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
|
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionsLogical.h>
#include <Columns/ColumnConst.h>
#include <Columns/ColumnNullable.h>
#include <Columns/ColumnVector.h>
#include <Columns/ColumnsNumber.h>
#include <Common/FieldVisitorConvertToNumber.h>
#include <Columns/MaskOperations.h>
#include <Common/typeid_cast.h>
#include <Columns/IColumn.h>
#include <DataTypes/DataTypeNullable.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeFactory.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/FunctionUnaryArithmetic.h>
#include <Common/FieldVisitors.h>
#include <cstring>
#include <algorithm>
namespace DB
{
REGISTER_FUNCTION(Logical)
{
factory.registerFunction<FunctionAnd>();
factory.registerFunction<FunctionOr>();
factory.registerFunction<FunctionXor>();
factory.registerFunction<FunctionNot>({}, FunctionFactory::CaseInsensitive); /// Operator NOT(x) can be parsed as a function.
}
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int TOO_FEW_ARGUMENTS_FOR_FUNCTION;
extern const int ILLEGAL_COLUMN;
}
namespace
{
using namespace FunctionsLogicalDetail;
using UInt8Container = ColumnUInt8::Container;
using UInt8ColumnPtrs = std::vector<const ColumnUInt8 *>;
MutableColumnPtr buildColumnFromTernaryData(const UInt8Container & ternary_data, const bool make_nullable)
{
const size_t rows_count = ternary_data.size();
auto new_column = ColumnUInt8::create(rows_count);
for (size_t i = 0; i < rows_count; ++i)
new_column->getData()[i] = (ternary_data[i] == Ternary::True);
if (!make_nullable)
return new_column;
auto null_column = ColumnUInt8::create(rows_count);
for (size_t i = 0; i < rows_count; ++i)
null_column->getData()[i] = (ternary_data[i] == Ternary::Null);
return ColumnNullable::create(std::move(new_column), std::move(null_column));
}
template <typename T>
bool tryConvertColumnToBool(const IColumn * column, UInt8Container & res)
{
const auto column_typed = checkAndGetColumn<ColumnVector<T>>(column);
if (!column_typed)
return false;
auto & data = column_typed->getData();
size_t data_size = data.size();
for (size_t i = 0; i < data_size; ++i)
res[i] = static_cast<bool>(data[i]);
return true;
}
void convertAnyColumnToBool(const IColumn * column, UInt8Container & res)
{
if (!tryConvertColumnToBool<Int8>(column, res) &&
!tryConvertColumnToBool<Int16>(column, res) &&
!tryConvertColumnToBool<Int32>(column, res) &&
!tryConvertColumnToBool<Int64>(column, res) &&
!tryConvertColumnToBool<UInt16>(column, res) &&
!tryConvertColumnToBool<UInt32>(column, res) &&
!tryConvertColumnToBool<UInt64>(column, res) &&
!tryConvertColumnToBool<Float32>(column, res) &&
!tryConvertColumnToBool<Float64>(column, res))
throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Unexpected type of column: {}", column->getName());
}
template <class Op, bool IsTernary, typename Func>
bool extractConstColumns(ColumnRawPtrs & in, UInt8 & res, Func && func)
{
bool has_res = false;
for (Int64 i = static_cast<Int64>(in.size()) - 1; i >= 0; --i)
{
UInt8 x;
if (in[i]->onlyNull())
x = func(Null());
else if (isColumnConst(*in[i]))
x = func((*in[i])[0]);
else
continue;
if (has_res)
{
if constexpr (IsTernary)
res = Op::ternaryApply(res, x);
else
res = Op::apply(res, x);
}
else
{
res = x;
has_res = true;
}
in.erase(in.begin() + i);
}
return has_res;
}
template <class Op>
inline bool extractConstColumnsAsBool(ColumnRawPtrs & in, UInt8 & res)
{
return extractConstColumns<Op, false>(
in, res,
[](const Field & value)
{
return !value.isNull() && applyVisitor(FieldVisitorConvertToNumber<bool>(), value);
}
);
}
template <class Op>
inline bool extractConstColumnsAsTernary(ColumnRawPtrs & in, UInt8 & res_3v)
{
return extractConstColumns<Op, true>(
in, res_3v,
[](const Field & value)
{
return value.isNull()
? Ternary::makeValue(false, true)
: Ternary::makeValue(applyVisitor(FieldVisitorConvertToNumber<bool>(), value));
}
);
}
/// N.B. This class calculates result only for non-nullable types
template <typename Op, size_t N>
class AssociativeApplierImpl
{
using ResultValueType = typename Op::ResultType;
public:
/// Remembers the last N columns from `in`.
explicit AssociativeApplierImpl(const UInt8ColumnPtrs & in)
: vec(in[in.size() - N]->getData()), next(in) {}
/// Returns a combination of values in the i-th row of all columns stored in the constructor.
inline ResultValueType apply(const size_t i) const
{
const auto a = !!vec[i];
return Op::apply(a, next.apply(i));
}
private:
const UInt8Container & vec;
const AssociativeApplierImpl<Op, N - 1> next;
};
template <typename Op>
class AssociativeApplierImpl<Op, 1>
{
using ResultValueType = typename Op::ResultType;
public:
explicit AssociativeApplierImpl(const UInt8ColumnPtrs & in)
: vec(in[in.size() - 1]->getData()) {}
inline ResultValueType apply(const size_t i) const { return !!vec[i]; }
private:
const UInt8Container & vec;
};
template <typename ... Types>
struct TernaryValueBuilderImpl;
template <typename Type, typename ...Types>
struct TernaryValueBuilderImpl<Type, Types...>
{
static void build(const IColumn * x, UInt8* __restrict ternary_column_data)
{
size_t size = x->size();
if (x->onlyNull())
{
memset(ternary_column_data, Ternary::Null, size);
}
else if (const auto * nullable_column = typeid_cast<const ColumnNullable *>(x))
{
if (const auto * nested_column = typeid_cast<const ColumnVector<Type> *>(nullable_column->getNestedColumnPtr().get()))
{
const auto& null_data = nullable_column->getNullMapData();
const auto& column_data = nested_column->getData();
if constexpr (sizeof(Type) == 1)
{
for (size_t i = 0; i < size; ++i)
{
auto has_value = static_cast<UInt8>(column_data[i] != 0);
auto is_null = !!null_data[i];
ternary_column_data[i] = ((has_value << 1) | is_null) & (1 << !is_null);
}
}
else
{
for (size_t i = 0; i < size; ++i)
{
auto has_value = static_cast<UInt8>(column_data[i] != 0);
ternary_column_data[i] = has_value;
}
for (size_t i = 0; i < size; ++i)
{
auto has_value = ternary_column_data[i];
auto is_null = !!null_data[i];
ternary_column_data[i] = ((has_value << 1) | is_null) & (1 << !is_null);
}
}
}
else
TernaryValueBuilderImpl<Types...>::build(x, ternary_column_data);
}
else if (const auto column = typeid_cast<const ColumnVector<Type> *>(x))
{
auto &column_data = column->getData();
for (size_t i = 0; i < size; ++i)
{
ternary_column_data[i] = (column_data[i] != 0) << 1;
}
}
else
TernaryValueBuilderImpl<Types...>::build(x, ternary_column_data);
}
};
template <>
struct TernaryValueBuilderImpl<>
{
[[noreturn]] static void build(const IColumn * x, UInt8 * /* nullable_ternary_column_data */)
{
throw Exception(ErrorCodes::LOGICAL_ERROR,
"Unknown numeric column of type: {}", demangle(typeid(*x).name()));
}
};
using TernaryValueBuilder =
TernaryValueBuilderImpl<UInt8, UInt16, UInt32, UInt64, Int8, Int16, Int32, Int64, Float32, Float64>;
/// This class together with helper class TernaryValueBuilder can be used with columns of arbitrary data type
/// Converts column of any data type into an intermediate UInt8Column of ternary representation for the
/// vectorized ternary logic evaluation.
template <typename Op, size_t N>
class AssociativeGenericApplierImpl
{
using ResultValueType = typename Op::ResultType;
public:
/// Remembers the last N columns from `in`.
explicit AssociativeGenericApplierImpl(const ColumnRawPtrs & in)
: vec(in[in.size() - N]->size()), next{in}
{
TernaryValueBuilder::build(in[in.size() - N], vec.data());
}
/// Returns a combination of values in the i-th row of all columns stored in the constructor.
inline ResultValueType apply(const size_t i) const
{
return Op::ternaryApply(vec[i], next.apply(i));
}
private:
UInt8Container vec;
const AssociativeGenericApplierImpl<Op, N - 1> next;
};
template <typename Op>
class AssociativeGenericApplierImpl<Op, 1>
{
using ResultValueType = typename Op::ResultType;
public:
/// Remembers the last N columns from `in`.
explicit AssociativeGenericApplierImpl(const ColumnRawPtrs & in)
: vec(UInt8Container(in[in.size() - 1]->size()))
{
TernaryValueBuilder::build(in[in.size() - 1], vec.data());
}
inline ResultValueType apply(const size_t i) const { return vec[i]; }
private:
UInt8Container vec;
};
/// Apply target function by feeding it "batches" of N columns
/// Combining 8 columns per pass is the fastest method, because it's the maximum when clang vectorizes a loop.
template <
typename Op, template <typename, size_t> typename OperationApplierImpl, size_t N = 8>
struct OperationApplier
{
template <typename Columns, typename ResultData>
static void apply(Columns & in, ResultData & result_data, bool use_result_data_as_input = false)
{
if (!use_result_data_as_input)
doBatchedApply<false>(in, result_data.data(), result_data.size());
while (!in.empty())
doBatchedApply<true>(in, result_data.data(), result_data.size());
}
template <bool CarryResult, typename Columns, typename Result>
static void NO_INLINE doBatchedApply(Columns & in, Result * __restrict result_data, size_t size)
{
if (N > in.size())
{
OperationApplier<Op, OperationApplierImpl, N - 1>
::template doBatchedApply<CarryResult>(in, result_data, size);
return;
}
const OperationApplierImpl<Op, N> operation_applier_impl(in);
for (size_t i = 0; i < size; ++i)
{
if constexpr (CarryResult)
{
if constexpr (std::is_same_v<OperationApplierImpl<Op, N>, AssociativeApplierImpl<Op, N>>)
result_data[i] = Op::apply(result_data[i], operation_applier_impl.apply(i));
else
result_data[i] = Op::ternaryApply(result_data[i], operation_applier_impl.apply(i));
}
else
result_data[i] = operation_applier_impl.apply(i);
}
in.erase(in.end() - N, in.end());
}
};
template <
typename Op, template <typename, size_t> typename OperationApplierImpl>
struct OperationApplier<Op, OperationApplierImpl, 0>
{
template <bool, typename Columns, typename Result>
static void NO_INLINE doBatchedApply(Columns &, Result &, size_t)
{
throw Exception(ErrorCodes::LOGICAL_ERROR, "OperationApplier<...>::apply(...): not enough arguments to run this method");
}
};
template <class Op>
ColumnPtr executeForTernaryLogicImpl(ColumnRawPtrs arguments, const DataTypePtr & result_type, size_t input_rows_count)
{
/// Combine all constant columns into a single constant value.
UInt8 const_3v_value = 0;
const bool has_consts = extractConstColumnsAsTernary<Op>(arguments, const_3v_value);
/// If the constant value uniquely determines the result, return it.
if (has_consts && (arguments.empty() || Op::isSaturatedValueTernary(const_3v_value)))
{
return ColumnConst::create(
buildColumnFromTernaryData(UInt8Container({const_3v_value}), result_type->isNullable()),
input_rows_count
);
}
const auto result_column = has_consts ?
ColumnUInt8::create(input_rows_count, const_3v_value) : ColumnUInt8::create(input_rows_count);
OperationApplier<Op, AssociativeGenericApplierImpl>::apply(arguments, result_column->getData(), has_consts);
return buildColumnFromTernaryData(result_column->getData(), result_type->isNullable());
}
template <typename Op, typename ... Types>
struct TypedExecutorInvoker;
template <typename Op>
using FastApplierImpl =
TypedExecutorInvoker<Op, UInt8, UInt16, UInt32, UInt64, Int8, Int16, Int32, Int64, Float32, Float64>;
template <typename Op, typename Type, typename ... Types>
struct TypedExecutorInvoker<Op, Type, Types ...>
{
template <typename T, typename Result>
static void apply(const ColumnVector<T> & x, const IColumn & y, Result & result)
{
if (const auto column = typeid_cast<const ColumnVector<Type> *>(&y))
std::transform(
x.getData().cbegin(), x.getData().cend(),
column->getData().cbegin(), result.begin(),
[](const auto a, const auto b) { return Op::apply(static_cast<bool>(a), static_cast<bool>(b)); });
else
TypedExecutorInvoker<Op, Types ...>::template apply<T>(x, y, result);
}
template <typename Result>
static void apply(const IColumn & x, const IColumn & y, Result & result)
{
if (const auto column = typeid_cast<const ColumnVector<Type> *>(&x))
FastApplierImpl<Op>::template apply<Type>(*column, y, result);
else
TypedExecutorInvoker<Op, Types ...>::apply(x, y, result);
}
};
template <typename Op>
struct TypedExecutorInvoker<Op>
{
template <typename T, typename Result>
static void apply(const ColumnVector<T> &, const IColumn & y, Result &)
{
throw Exception(ErrorCodes::LOGICAL_ERROR, "Unknown numeric column y of type: {}", demangle(typeid(y).name()));
}
template <typename Result>
static void apply(const IColumn & x, const IColumn &, Result &)
{
throw Exception(ErrorCodes::LOGICAL_ERROR, "Unknown numeric column x of type: {}", demangle(typeid(x).name()));
}
};
/// Types of all of the arguments are guaranteed to be non-nullable here
template <class Op>
ColumnPtr basicExecuteImpl(ColumnRawPtrs arguments, size_t input_rows_count)
{
/// Combine all constant columns into a single constant value.
UInt8 const_val = 0;
bool has_consts = extractConstColumnsAsBool<Op>(arguments, const_val);
/// If the constant value uniquely determines the result, return it.
if (has_consts && (arguments.empty() || Op::apply(const_val, 0) == Op::apply(const_val, 1)))
{
if (!arguments.empty())
const_val = Op::apply(const_val, 0);
return DataTypeUInt8().createColumnConst(input_rows_count, toField(const_val));
}
/// If the constant value is a neutral element, let's forget about it.
if (has_consts && Op::apply(const_val, 0) == 0 && Op::apply(const_val, 1) == 1)
has_consts = false;
auto col_res = has_consts ?
ColumnUInt8::create(input_rows_count, const_val) : ColumnUInt8::create(input_rows_count);
/// FastPath detection goes in here
if (arguments.size() == (has_consts ? 1 : 2))
{
if (has_consts)
FastApplierImpl<Op>::apply(*arguments[0], *col_res, col_res->getData());
else
FastApplierImpl<Op>::apply(*arguments[0], *arguments[1], col_res->getData());
return col_res;
}
/// Convert all columns to UInt8
UInt8ColumnPtrs uint8_args;
Columns converted_columns_holder;
for (const IColumn * column : arguments)
{
if (const auto * uint8_column = checkAndGetColumn<ColumnUInt8>(column))
{
uint8_args.push_back(uint8_column);
}
else
{
auto converted_column = ColumnUInt8::create(input_rows_count);
convertAnyColumnToBool(column, converted_column->getData());
uint8_args.push_back(converted_column.get());
converted_columns_holder.emplace_back(std::move(converted_column));
}
}
OperationApplier<Op, AssociativeApplierImpl>::apply(uint8_args, col_res->getData(), has_consts);
return col_res;
}
}
template <typename Impl, typename Name>
DataTypePtr FunctionAnyArityLogical<Impl, Name>::getReturnTypeImpl(const DataTypes & arguments) const
{
if (arguments.size() < 2)
throw Exception(ErrorCodes::TOO_FEW_ARGUMENTS_FOR_FUNCTION,
"Number of arguments for function \"{}\" should be at least 2: passed {}",
getName(), arguments.size());
bool has_nullable_arguments = false;
bool has_bool_arguments = false;
for (size_t i = 0; i < arguments.size(); ++i)
{
const auto & arg_type = arguments[i];
if (isBool(arg_type))
has_bool_arguments = true;
if (!has_nullable_arguments)
{
has_nullable_arguments = arg_type->isNullable();
if (has_nullable_arguments && !Impl::specialImplementationForNulls())
throw Exception(ErrorCodes::LOGICAL_ERROR, "Logical error: Unexpected type of argument for function \"{}\": "
" argument {} is of type {}", getName(), i + 1, arg_type->getName());
}
if (!(isNativeNumber(arg_type)
|| (Impl::specialImplementationForNulls() && (arg_type->onlyNull() || isNativeNumber(removeNullable(arg_type))))))
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type ({}) of {} argument of function {}",
arg_type->getName(), i + 1, getName());
}
auto result_type = has_bool_arguments ? DataTypeFactory::instance().get("Bool") : std::make_shared<DataTypeUInt8>();
return has_nullable_arguments
? makeNullable(result_type)
: result_type;
}
template <bool inverted>
static void applyTernaryLogicImpl(const IColumn::Filter & mask, IColumn::Filter & null_bytemap)
{
for (size_t i = 0; i != mask.size(); ++i)
{
UInt8 value = mask[i];
if constexpr (inverted)
value = !value;
if (null_bytemap[i] && value)
null_bytemap[i] = 0;
}
}
template <typename Name>
static void applyTernaryLogic(const IColumn::Filter & mask, IColumn::Filter & null_bytemap)
{
if (Name::name == NameAnd::name)
applyTernaryLogicImpl<true>(mask, null_bytemap);
else if (Name::name == NameOr::name)
applyTernaryLogicImpl<false>(mask, null_bytemap);
}
template <typename Impl, typename Name>
ColumnPtr FunctionAnyArityLogical<Impl, Name>::executeShortCircuit(ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type) const
{
if (Name::name != NameAnd::name && Name::name != NameOr::name)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Function {} doesn't support short circuit execution", getName());
executeColumnIfNeeded(arguments[0]);
/// Let's denote x_i' = maskedExecute(x_i, mask).
/// 1) AND(x_0, x_1, x_2, ..., x_n)
/// We will support mask_i = x_0 & x_1 & ... & x_i.
/// Base:
/// mask_0 is 1 everywhere, x_0' = x_0.
/// Iteration:
/// mask_i = extractMask(mask_{i - 1}, x_{i - 1}')
/// x_i' = maskedExecute(x_i, mask)
/// Also we will treat NULL as 1 if x_i' is Nullable
/// to support ternary logic.
/// The result is mask_n.
///
/// 1) OR(x_0, x_1, x_2, ..., x_n)
/// We will support mask_i = !x_0 & !x_1 & ... & !x_i.
/// mask_0 is 1 everywhere, x_0' = x_0.
/// mask = extractMask(mask, !x_{i - 1}')
/// x_i' = maskedExecute(x_i, mask)
/// Also we will treat NULL as 0 if x_i' is Nullable
/// to support ternary logic.
/// The result is !mask_n.
bool inverted = Name::name != NameAnd::name;
UInt8 null_value = static_cast<UInt8>(Name::name == NameAnd::name);
IColumn::Filter mask(arguments[0].column->size(), 1);
/// If result is nullable, we need to create null bytemap of the resulting column.
/// We will fill it while extracting mask from arguments.
std::unique_ptr<IColumn::Filter> nulls;
if (result_type->isNullable())
nulls = std::make_unique<IColumn::Filter>(arguments[0].column->size(), 0);
MaskInfo mask_info;
for (size_t i = 1; i <= arguments.size(); ++i)
{
if (inverted)
mask_info = extractInvertedMask(mask, arguments[i - 1].column, nulls.get(), null_value);
else
mask_info = extractMask(mask, arguments[i - 1].column, nulls.get(), null_value);
/// If mask doesn't have ones, we don't need to execute the rest arguments,
/// because the result won't change.
if (!mask_info.has_ones || i == arguments.size())
break;
maskedExecute(arguments[i], mask, mask_info);
}
/// For OR function we need to inverse mask to get the resulting column.
if (inverted)
inverseMask(mask, mask_info);
if (nulls)
applyTernaryLogic<Name>(mask, *nulls);
auto res = ColumnUInt8::create();
res->getData() = std::move(mask);
if (!nulls)
return res;
auto bytemap = ColumnUInt8::create();
bytemap->getData() = std::move(*nulls);
return ColumnNullable::create(std::move(res), std::move(bytemap));
}
template <typename Impl, typename Name>
ColumnPtr FunctionAnyArityLogical<Impl, Name>::executeImpl(
const ColumnsWithTypeAndName & args, const DataTypePtr & result_type, size_t input_rows_count) const
{
ColumnsWithTypeAndName arguments = args;
/// Special implementation for short-circuit arguments.
if (checkShortCircuitArguments(arguments) != -1)
return executeShortCircuit(arguments, result_type);
ColumnRawPtrs args_in;
for (const auto & arg_index : arguments)
args_in.push_back(arg_index.column.get());
if (result_type->isNullable())
return executeForTernaryLogicImpl<Impl>(std::move(args_in), result_type, input_rows_count);
else
return basicExecuteImpl<Impl>(std::move(args_in), input_rows_count);
}
template <typename Impl, typename Name>
ColumnPtr FunctionAnyArityLogical<Impl, Name>::getConstantResultForNonConstArguments(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type) const
{
/** Try to perform optimization for saturable functions (AndFunction, OrFunction) in case some arguments are
* constants.
* If function is not saturable (XorFunction) we cannot perform such optimization.
* If function is AndFunction and in arguments there is constant false, result is false.
* If function is OrFunction and in arguments there is constant true, result is true.
*/
if constexpr (!Impl::isSaturable())
return nullptr;
bool has_true_constant = false;
bool has_false_constant = false;
for (const auto & argument : arguments)
{
ColumnPtr column = argument.column;
if (!column || !isColumnConst(*column))
continue;
DataTypePtr non_nullable_type = removeNullable(argument.type);
TypeIndex data_type_index = non_nullable_type->getTypeId();
if (!isNativeNumber(data_type_index))
continue;
const ColumnConst * const_column = static_cast<const ColumnConst *>(column.get());
Field constant_field_value = const_column->getField();
if (constant_field_value.isNull())
continue;
auto field_type = constant_field_value.getType();
bool constant_value_bool = false;
if (field_type == Field::Types::Float64)
constant_value_bool = static_cast<bool>(constant_field_value.get<Float64>());
else if (field_type == Field::Types::Int64)
constant_value_bool = static_cast<bool>(constant_field_value.get<Int64>());
else if (field_type == Field::Types::UInt64)
constant_value_bool = static_cast<bool>(constant_field_value.get<UInt64>());
has_true_constant = has_true_constant || constant_value_bool;
has_false_constant = has_false_constant || !constant_value_bool;
}
ColumnPtr result_column;
if constexpr (std::is_same_v<Impl, AndImpl>)
{
if (has_false_constant)
result_column = result_type->createColumnConst(0, static_cast<UInt8>(false));
}
else if constexpr (std::is_same_v<Impl, OrImpl>)
{
if (has_true_constant)
result_column = result_type->createColumnConst(0, static_cast<UInt8>(true));
}
return result_column;
}
template <template <typename> class Impl, typename Name>
DataTypePtr FunctionUnaryLogical<Impl, Name>::getReturnTypeImpl(const DataTypes & arguments) const
{
if (!isNativeNumber(arguments[0]))
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type ({}) of argument of function {}",
arguments[0]->getName(),
getName());
return isBool(arguments[0]) ? DataTypeFactory::instance().get("Bool") : std::make_shared<DataTypeUInt8>();
}
template <template <typename> class Impl, typename T>
ColumnPtr functionUnaryExecuteType(const ColumnsWithTypeAndName & arguments)
{
if (auto col = checkAndGetColumn<ColumnVector<T>>(arguments[0].column.get()))
{
auto col_res = ColumnUInt8::create(col->getData().size());
auto & vec_res = col_res->getData();
UnaryOperationImpl<T, Impl<T>>::vector(col->getData(), vec_res);
return col_res;
}
return nullptr;
}
template <template <typename> class Impl, typename Name>
ColumnPtr FunctionUnaryLogical<Impl, Name>::executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const
{
ColumnPtr res;
if (!((res = functionUnaryExecuteType<Impl, UInt8>(arguments))
|| (res = functionUnaryExecuteType<Impl, UInt16>(arguments))
|| (res = functionUnaryExecuteType<Impl, UInt32>(arguments))
|| (res = functionUnaryExecuteType<Impl, UInt64>(arguments))
|| (res = functionUnaryExecuteType<Impl, Int8>(arguments))
|| (res = functionUnaryExecuteType<Impl, Int16>(arguments))
|| (res = functionUnaryExecuteType<Impl, Int32>(arguments))
|| (res = functionUnaryExecuteType<Impl, Int64>(arguments))
|| (res = functionUnaryExecuteType<Impl, Float32>(arguments))
|| (res = functionUnaryExecuteType<Impl, Float64>(arguments))))
throw Exception(ErrorCodes::ILLEGAL_COLUMN,
"Illegal column {} of argument of function {}",
arguments[0].column->getName(),
getName());
return res;
}
}
|