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#include "clickhouse_config.h"
#if USE_S2_GEOMETRY
#include <Columns/ColumnsNumber.h>
#include <Columns/ColumnTuple.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeTuple.h>
#include <Functions/FunctionFactory.h>
#include <Common/typeid_cast.h>
#include <Common/NaNUtils.h>
#include <base/range.h>
#error #include "s2_fwd.h"
namespace DB
{
namespace ErrorCodes
{
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int BAD_ARGUMENTS;
extern const int ILLEGAL_COLUMN;
}
namespace
{
/**
* The cap represents a portion of the sphere that has been cut off by a plane.
* See comment for s2CapContains function.
* This function returns the smallest cap that contains both of input caps.
* It is represented by identifier of the center and a radius.
*/
class FunctionS2CapUnion : public IFunction
{
public:
static constexpr auto name = "s2CapUnion";
static FunctionPtr create(ContextPtr)
{
return std::make_shared<FunctionS2CapUnion>();
}
std::string getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 4; }
bool useDefaultImplementationForConstants() const override { return true; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
for (size_t index = 0; index < getNumberOfArguments(); ++index)
{
const auto * arg = arguments[index].get();
if (index == 1 || index == 3)
{
if (!WhichDataType(arg).isFloat64())
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of argument {} of function {}. Must be Float64",
arg->getName(), index + 1, getName());
}
else if (!WhichDataType(arg).isUInt64())
throw Exception(
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of argument {} of function {}. Must be UInt64",
arg->getName(), index + 1, getName()
);
}
DataTypePtr center = std::make_shared<DataTypeUInt64>();
DataTypePtr radius = std::make_shared<DataTypeFloat64>();
return std::make_shared<DataTypeTuple>(DataTypes{center, radius});
}
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
{
auto non_const_arguments = arguments;
for (auto & argument : non_const_arguments)
argument.column = argument.column->convertToFullColumnIfConst();
const auto * col_center1 = checkAndGetColumn<ColumnUInt64>(non_const_arguments[0].column.get());
if (!col_center1)
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal type {} of argument {} of function {}. Must be UInt64",
arguments[0].type->getName(),
1,
getName());
const auto & data_center1 = col_center1->getData();
const auto * col_radius1 = checkAndGetColumn<ColumnFloat64>(non_const_arguments[1].column.get());
if (!col_radius1)
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal type {} of argument {} of function {}. Must be Float64",
arguments[1].type->getName(),
2,
getName());
const auto & data_radius1 = col_radius1->getData();
const auto * col_center2 = checkAndGetColumn<ColumnUInt64>(non_const_arguments[2].column.get());
if (!col_center2)
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal type {} of argument {} of function {}. Must be UInt64",
arguments[2].type->getName(),
3,
getName());
const auto & data_center2 = col_center2->getData();
const auto * col_radius2 = checkAndGetColumn<ColumnFloat64>(non_const_arguments[3].column.get());
if (!col_radius2)
throw Exception(
ErrorCodes::ILLEGAL_COLUMN,
"Illegal type {} of argument {} of function {}. Must be Float64",
arguments[3].type->getName(),
4,
getName());
const auto & data_radius2 = col_radius2->getData();
auto col_res_center = ColumnUInt64::create();
auto col_res_radius = ColumnFloat64::create();
auto & vec_res_center = col_res_center->getData();
vec_res_center.reserve(input_rows_count);
auto & vec_res_radius = col_res_radius->getData();
vec_res_radius.reserve(input_rows_count);
for (size_t row = 0; row < input_rows_count; ++row)
{
const UInt64 first_center = data_center1[row];
const Float64 first_radius = data_radius1[row];
const UInt64 second_center = data_center2[row];
const Float64 second_radius = data_radius2[row];
if (isNaN(first_radius) || isNaN(second_radius))
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Radius of the cap must not be nan");
if (std::isinf(first_radius) || std::isinf(second_radius))
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Radius of the cap must not be infinite");
auto first_center_cell = S2CellId(first_center);
auto second_center_cell = S2CellId(second_center);
if (!first_center_cell.is_valid() || !second_center_cell.is_valid())
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Center of the cap is not valid");
S2Cap cap1(first_center_cell.ToPoint(), S1Angle::Degrees(first_radius));
S2Cap cap2(second_center_cell.ToPoint(), S1Angle::Degrees(second_radius));
S2Cap cap_union = cap1.Union(cap2);
vec_res_center.emplace_back(S2CellId(cap_union.center()).id());
vec_res_radius.emplace_back(cap_union.GetRadius().degrees());
}
return ColumnTuple::create(Columns{std::move(col_res_center), std::move(col_res_radius)});
}
};
}
REGISTER_FUNCTION(S2CapUnion)
{
factory.registerFunction<FunctionS2CapUnion>();
}
}
#endif
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