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#if defined(__ELF__) && !defined(OS_FREEBSD)
#include <Common/SymbolIndex.h>
#include <Columns/ColumnString.h>
#include <Columns/ColumnsNumber.h>
#include <DataTypes/DataTypeString.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Access/Common/AccessFlags.h>
#include <Interpreters/Context.h>
#include <IO/WriteHelpers.h>
namespace DB
{
namespace ErrorCodes
{
extern const int ILLEGAL_COLUMN;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
}
namespace
{
class FunctionAddressToSymbol : public IFunction
{
public:
static constexpr auto name = "addressToSymbol";
static FunctionPtr create(ContextPtr context)
{
context->checkAccess(AccessType::addressToSymbol);
return std::make_shared<FunctionAddressToSymbol>();
}
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override
{
return 1;
}
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
{
if (arguments.size() != 1)
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH, "Function {} needs exactly one argument; passed {}.",
getName(), arguments.size());
const auto & type = arguments[0].type;
if (!WhichDataType(type.get()).isUInt64())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "The only argument for function {} must be UInt64. "
"Found {} instead.", getName(), type->getName());
return std::make_shared<DataTypeString>();
}
bool useDefaultImplementationForConstants() const override
{
return true;
}
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
{
const SymbolIndex & symbol_index = SymbolIndex::instance();
const ColumnPtr & column = arguments[0].column;
const ColumnUInt64 * column_concrete = checkAndGetColumn<ColumnUInt64>(column.get());
if (!column_concrete)
throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of argument of function {}", column->getName(), getName());
const typename ColumnVector<UInt64>::Container & data = column_concrete->getData();
auto result_column = ColumnString::create();
for (size_t i = 0; i < input_rows_count; ++i)
{
if (const auto * symbol = symbol_index.findSymbol(reinterpret_cast<const void *>(data[i])))
result_column->insertData(symbol->name, strlen(symbol->name));
else
result_column->insertDefault();
}
return result_column;
}
};
}
REGISTER_FUNCTION(AddressToSymbol)
{
factory.registerFunction<FunctionAddressToSymbol>();
}
}
#endif
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