mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-14 10:22:10 +00:00
118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
#include "config.h"
|
|
|
|
#if USE_H3
|
|
|
|
#include <Columns/ColumnArray.h>
|
|
#include <Columns/ColumnsNumber.h>
|
|
#include <DataTypes/DataTypeArray.h>
|
|
#include <DataTypes/DataTypesNumber.h>
|
|
#include <Functions/FunctionFactory.h>
|
|
#include <Functions/IFunction.h>
|
|
#include <Common/typeid_cast.h>
|
|
#include <IO/WriteHelpers.h>
|
|
#include <base/range.h>
|
|
|
|
#include <constants.h>
|
|
#include <h3api.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
namespace ErrorCodes
|
|
{
|
|
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
|
|
extern const int ILLEGAL_COLUMN;
|
|
}
|
|
|
|
namespace
|
|
{
|
|
|
|
class FunctionH3Distance : public IFunction
|
|
{
|
|
public:
|
|
static constexpr auto name = "h3Distance";
|
|
|
|
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionH3Distance>(); }
|
|
|
|
std::string getName() const override { return name; }
|
|
|
|
size_t getNumberOfArguments() const override { return 2; }
|
|
bool useDefaultImplementationForConstants() const override { return true; }
|
|
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
|
|
|
|
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
|
|
{
|
|
const auto * arg = arguments[0].get();
|
|
if (!WhichDataType(arg).isUInt64())
|
|
throw Exception(
|
|
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
|
|
"Illegal type {} of argument {} of function {}. Must be UInt64",
|
|
arg->getName(), 1, getName());
|
|
|
|
arg = arguments[1].get();
|
|
if (!WhichDataType(arg).isUInt64())
|
|
throw Exception(
|
|
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
|
|
"Illegal type {} of argument {} of function {}. Must be UInt64",
|
|
arg->getName(), 2, getName());
|
|
|
|
return std::make_shared<DataTypeInt64>();
|
|
}
|
|
|
|
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_start_index = checkAndGetColumn<ColumnUInt64>(non_const_arguments[0].column.get());
|
|
if (!col_start_index)
|
|
throw Exception(
|
|
ErrorCodes::ILLEGAL_COLUMN,
|
|
"Illegal type {} of argument {} of function {}. Must be UInt64.",
|
|
arguments[0].type->getName(),
|
|
1,
|
|
getName());
|
|
|
|
const auto & data_start_index = col_start_index->getData();
|
|
|
|
const auto * col_end_index = checkAndGetColumn<ColumnUInt64>(non_const_arguments[1].column.get());
|
|
if (!col_end_index)
|
|
throw Exception(
|
|
ErrorCodes::ILLEGAL_COLUMN,
|
|
"Illegal type {} of argument {} of function {}. Must be UInt64.",
|
|
arguments[1].type->getName(),
|
|
2,
|
|
getName());
|
|
|
|
const auto & data_end_index = col_end_index->getData();
|
|
|
|
|
|
auto dst = ColumnVector<Int64>::create();
|
|
auto & dst_data = dst->getData();
|
|
dst_data.resize(input_rows_count);
|
|
|
|
for (size_t row = 0; row < input_rows_count; ++row)
|
|
{
|
|
const UInt64 start = data_start_index[row];
|
|
const UInt64 end = data_end_index[row];
|
|
|
|
auto size = gridPathCellsSize(start, end);
|
|
dst_data[row] = size;
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
REGISTER_FUNCTION(H3Distance)
|
|
{
|
|
factory.registerFunction<FunctionH3Distance>();
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|