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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
#include "arrow/compute/api_aggregate.h"
#include "arrow/compute/exec.h"
#include "arrow/compute/function_internal.h"
#include "arrow/compute/registry.h"
#include "arrow/compute/util_internal.h"
#include "arrow/util/checked_cast.h"
#include "arrow/util/logging.h"
namespace arrow {
namespace internal {
template <>
struct EnumTraits<compute::QuantileOptions::Interpolation>
: BasicEnumTraits<compute::QuantileOptions::Interpolation,
compute::QuantileOptions::LINEAR, compute::QuantileOptions::LOWER,
compute::QuantileOptions::HIGHER, compute::QuantileOptions::NEAREST,
compute::QuantileOptions::MIDPOINT> {
static std::string name() { return "QuantileOptions::Interpolation"; }
static std::string value_name(compute::QuantileOptions::Interpolation value) {
switch (value) {
case compute::QuantileOptions::LINEAR:
return "LINEAR";
case compute::QuantileOptions::LOWER:
return "LOWER";
case compute::QuantileOptions::HIGHER:
return "HIGHER";
case compute::QuantileOptions::NEAREST:
return "NEAREST";
case compute::QuantileOptions::MIDPOINT:
return "MIDPOINT";
}
return "<INVALID>";
}
};
} // namespace internal
namespace compute {
// ----------------------------------------------------------------------
// Function options
using ::arrow::internal::checked_cast;
namespace internal {
namespace {
using ::arrow::internal::DataMember;
static auto kScalarAggregateOptionsType = GetFunctionOptionsType<ScalarAggregateOptions>(
DataMember("skip_nulls", &ScalarAggregateOptions::skip_nulls),
DataMember("min_count", &ScalarAggregateOptions::min_count));
static auto kModeOptionsType =
GetFunctionOptionsType<ModeOptions>(DataMember("n", &ModeOptions::n));
static auto kVarianceOptionsType =
GetFunctionOptionsType<VarianceOptions>(DataMember("ddof", &VarianceOptions::ddof));
static auto kQuantileOptionsType = GetFunctionOptionsType<QuantileOptions>(
DataMember("q", &QuantileOptions::q),
DataMember("interpolation", &QuantileOptions::interpolation));
static auto kTDigestOptionsType = GetFunctionOptionsType<TDigestOptions>(
DataMember("q", &TDigestOptions::q), DataMember("delta", &TDigestOptions::delta),
DataMember("buffer_size", &TDigestOptions::buffer_size));
static auto kIndexOptionsType =
GetFunctionOptionsType<IndexOptions>(DataMember("value", &IndexOptions::value));
} // namespace
} // namespace internal
ScalarAggregateOptions::ScalarAggregateOptions(bool skip_nulls, uint32_t min_count)
: FunctionOptions(internal::kScalarAggregateOptionsType),
skip_nulls(skip_nulls),
min_count(min_count) {}
constexpr char ScalarAggregateOptions::kTypeName[];
ModeOptions::ModeOptions(int64_t n) : FunctionOptions(internal::kModeOptionsType), n(n) {}
constexpr char ModeOptions::kTypeName[];
VarianceOptions::VarianceOptions(int ddof)
: FunctionOptions(internal::kVarianceOptionsType), ddof(ddof) {}
constexpr char VarianceOptions::kTypeName[];
QuantileOptions::QuantileOptions(double q, enum Interpolation interpolation)
: FunctionOptions(internal::kQuantileOptionsType),
q{q},
interpolation{interpolation} {}
QuantileOptions::QuantileOptions(std::vector<double> q, enum Interpolation interpolation)
: FunctionOptions(internal::kQuantileOptionsType),
q{std::move(q)},
interpolation{interpolation} {}
constexpr char QuantileOptions::kTypeName[];
TDigestOptions::TDigestOptions(double q, uint32_t delta, uint32_t buffer_size)
: FunctionOptions(internal::kTDigestOptionsType),
q{q},
delta{delta},
buffer_size{buffer_size} {}
TDigestOptions::TDigestOptions(std::vector<double> q, uint32_t delta,
uint32_t buffer_size)
: FunctionOptions(internal::kTDigestOptionsType),
q{std::move(q)},
delta{delta},
buffer_size{buffer_size} {}
constexpr char TDigestOptions::kTypeName[];
IndexOptions::IndexOptions(std::shared_ptr<Scalar> value)
: FunctionOptions(internal::kIndexOptionsType), value{std::move(value)} {}
IndexOptions::IndexOptions() : IndexOptions(std::make_shared<NullScalar>()) {}
constexpr char IndexOptions::kTypeName[];
namespace internal {
void RegisterAggregateOptions(FunctionRegistry* registry) {
DCHECK_OK(registry->AddFunctionOptionsType(kScalarAggregateOptionsType));
DCHECK_OK(registry->AddFunctionOptionsType(kModeOptionsType));
DCHECK_OK(registry->AddFunctionOptionsType(kVarianceOptionsType));
DCHECK_OK(registry->AddFunctionOptionsType(kQuantileOptionsType));
DCHECK_OK(registry->AddFunctionOptionsType(kTDigestOptionsType));
DCHECK_OK(registry->AddFunctionOptionsType(kIndexOptionsType));
}
} // namespace internal
// ----------------------------------------------------------------------
// Scalar aggregates
Result<Datum> Count(const Datum& value, const ScalarAggregateOptions& options,
ExecContext* ctx) {
return CallFunction("count", {value}, &options, ctx);
}
Result<Datum> Mean(const Datum& value, const ScalarAggregateOptions& options,
ExecContext* ctx) {
return CallFunction("mean", {value}, &options, ctx);
}
Result<Datum> Sum(const Datum& value, const ScalarAggregateOptions& options,
ExecContext* ctx) {
return CallFunction("sum", {value}, &options, ctx);
}
Result<Datum> MinMax(const Datum& value, const ScalarAggregateOptions& options,
ExecContext* ctx) {
return CallFunction("min_max", {value}, &options, ctx);
}
Result<Datum> Any(const Datum& value, const ScalarAggregateOptions& options,
ExecContext* ctx) {
return CallFunction("any", {value}, &options, ctx);
}
Result<Datum> All(const Datum& value, const ScalarAggregateOptions& options,
ExecContext* ctx) {
return CallFunction("all", {value}, &options, ctx);
}
Result<Datum> Mode(const Datum& value, const ModeOptions& options, ExecContext* ctx) {
return CallFunction("mode", {value}, &options, ctx);
}
Result<Datum> Stddev(const Datum& value, const VarianceOptions& options,
ExecContext* ctx) {
return CallFunction("stddev", {value}, &options, ctx);
}
Result<Datum> Variance(const Datum& value, const VarianceOptions& options,
ExecContext* ctx) {
return CallFunction("variance", {value}, &options, ctx);
}
Result<Datum> Quantile(const Datum& value, const QuantileOptions& options,
ExecContext* ctx) {
return CallFunction("quantile", {value}, &options, ctx);
}
Result<Datum> TDigest(const Datum& value, const TDigestOptions& options,
ExecContext* ctx) {
return CallFunction("tdigest", {value}, &options, ctx);
}
Result<Datum> Index(const Datum& value, const IndexOptions& options, ExecContext* ctx) {
return CallFunction("index", {value}, &options, ctx);
}
} // namespace compute
} // namespace arrow
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