mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 19:02:04 +00:00
70d1adfe4b
* save format string for NetException * format exceptions * format exceptions 2 * format exceptions 3 * format exceptions 4 * format exceptions 5 * format exceptions 6 * fix * format exceptions 7 * format exceptions 8 * Update MergeTreeIndexGin.cpp * Update AggregateFunctionMap.cpp * Update AggregateFunctionMap.cpp * fix
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
#include <Functions/FunctionFactory.h>
|
|
#include <Functions/GeoHash.h>
|
|
#include <Functions/FunctionHelpers.h>
|
|
|
|
#include <Columns/ColumnString.h>
|
|
#include <Columns/ColumnFixedString.h>
|
|
#include <Columns/ColumnsNumber.h>
|
|
#include <Columns/ColumnTuple.h>
|
|
#include <DataTypes/DataTypeTuple.h>
|
|
#include <DataTypes/DataTypesNumber.h>
|
|
|
|
#include <string>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
namespace ErrorCodes
|
|
{
|
|
extern const int ILLEGAL_COLUMN;
|
|
}
|
|
|
|
namespace
|
|
{
|
|
|
|
// geohashDecode(string) => (lon float64, lat float64)
|
|
class FunctionGeohashDecode : public IFunction
|
|
{
|
|
public:
|
|
static constexpr auto name = "geohashDecode";
|
|
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionGeohashDecode>(); }
|
|
|
|
String getName() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
size_t getNumberOfArguments() const override { return 1; }
|
|
bool useDefaultImplementationForConstants() const override { return true; }
|
|
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
|
|
|
|
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
|
|
{
|
|
validateArgumentType(*this, arguments, 0, isStringOrFixedString, "string or fixed string");
|
|
|
|
return std::make_shared<DataTypeTuple>(
|
|
DataTypes{std::make_shared<DataTypeFloat64>(), std::make_shared<DataTypeFloat64>()},
|
|
Strings{"longitude", "latitude"});
|
|
}
|
|
|
|
template <typename ColumnTypeEncoded>
|
|
bool tryExecute(const IColumn * encoded_column, ColumnPtr & result_column) const
|
|
{
|
|
const auto * encoded = checkAndGetColumn<ColumnTypeEncoded>(encoded_column);
|
|
if (!encoded)
|
|
return false;
|
|
|
|
const size_t count = encoded->size();
|
|
|
|
auto latitude = ColumnFloat64::create(count);
|
|
auto longitude = ColumnFloat64::create(count);
|
|
|
|
ColumnFloat64::Container & lon_data = longitude->getData();
|
|
ColumnFloat64::Container & lat_data = latitude->getData();
|
|
|
|
for (size_t i = 0; i < count; ++i)
|
|
{
|
|
std::string_view encoded_string = encoded->getDataAt(i).toView();
|
|
geohashDecode(encoded_string.data(), encoded_string.size(), &lon_data[i], &lat_data[i]);
|
|
}
|
|
|
|
MutableColumns result;
|
|
result.emplace_back(std::move(longitude));
|
|
result.emplace_back(std::move(latitude));
|
|
result_column = ColumnTuple::create(std::move(result));
|
|
|
|
return true;
|
|
}
|
|
|
|
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
|
|
{
|
|
const IColumn * encoded = arguments[0].column.get();
|
|
ColumnPtr res_column;
|
|
|
|
if (tryExecute<ColumnString>(encoded, res_column) ||
|
|
tryExecute<ColumnFixedString>(encoded, res_column))
|
|
return res_column;
|
|
|
|
throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Unsupported argument type:{} of argument of function {}",
|
|
arguments[0].column->getName(), getName());
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
REGISTER_FUNCTION(GeohashDecode)
|
|
{
|
|
factory.registerFunction<FunctionGeohashDecode>();
|
|
}
|
|
|
|
}
|