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d520413454
Remove MultiVersion for SymbolIndex structure since after #51873 it is useless. Follow-up for: #51873 Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
#if defined(__ELF__) && !defined(OS_FREEBSD)
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#include <Common/SymbolIndex.h>
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#include <Columns/ColumnString.h>
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#include <Columns/ColumnsNumber.h>
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#include <DataTypes/DataTypeString.h>
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#include <Functions/IFunction.h>
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#include <Functions/FunctionFactory.h>
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#include <Access/Common/AccessFlags.h>
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#include <Interpreters/Context.h>
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#include <IO/WriteHelpers.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int ILLEGAL_COLUMN;
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extern const int ILLEGAL_TYPE_OF_ARGUMENT;
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extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
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}
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namespace
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{
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class FunctionAddressToSymbol : public IFunction
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{
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public:
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static constexpr auto name = "addressToSymbol";
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static FunctionPtr create(ContextPtr context)
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{
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context->checkAccess(AccessType::addressToSymbol);
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return std::make_shared<FunctionAddressToSymbol>();
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}
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String getName() const override
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{
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return name;
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}
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size_t getNumberOfArguments() const override
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{
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return 1;
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}
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
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DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
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{
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if (arguments.size() != 1)
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throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH, "Function {} needs exactly one argument; passed {}.",
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getName(), arguments.size());
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const auto & type = arguments[0].type;
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if (!WhichDataType(type.get()).isUInt64())
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "The only argument for function {} must be UInt64. "
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"Found {} instead.", getName(), type->getName());
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return std::make_shared<DataTypeString>();
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}
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bool useDefaultImplementationForConstants() const override
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{
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return true;
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}
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
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{
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const SymbolIndex & symbol_index = SymbolIndex::instance();
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const ColumnPtr & column = arguments[0].column;
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const ColumnUInt64 * column_concrete = checkAndGetColumn<ColumnUInt64>(column.get());
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if (!column_concrete)
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throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of argument of function {}", column->getName(), getName());
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const typename ColumnVector<UInt64>::Container & data = column_concrete->getData();
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auto result_column = ColumnString::create();
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for (size_t i = 0; i < input_rows_count; ++i)
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{
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if (const auto * symbol = symbol_index.findSymbol(reinterpret_cast<const void *>(data[i])))
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result_column->insertData(symbol->name, strlen(symbol->name));
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else
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result_column->insertDefault();
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}
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return result_column;
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}
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};
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}
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REGISTER_FUNCTION(AddressToSymbol)
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{
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factory.registerFunction<FunctionAddressToSymbol>();
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}
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}
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#endif
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