mirror of
https://github.com/ClickHouse/ClickHouse.git
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95 lines
3.7 KiB
C++
95 lines
3.7 KiB
C++
#include "ExternalResultDescription.h"
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#include <DataTypes/DataTypeDate.h>
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#include <DataTypes/DataTypeDateTime.h>
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#include <DataTypes/DataTypeDateTime64.h>
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#include <DataTypes/DataTypeNullable.h>
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#include <DataTypes/DataTypeString.h>
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#include <DataTypes/DataTypeArray.h>
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#include <DataTypes/DataTypeFixedString.h>
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#include <DataTypes/DataTypeUUID.h>
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#include <DataTypes/DataTypesDecimal.h>
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#include <DataTypes/DataTypesNumber.h>
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#include <DataTypes/DataTypeEnum.h>
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#include <Common/typeid_cast.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 UNKNOWN_TYPE;
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}
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void ExternalResultDescription::init(const Block & sample_block_)
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{
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sample_block = sample_block_;
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types.reserve(sample_block.columns());
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for (auto & elem : sample_block)
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{
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/// If default value for column was not provided, use default from data type.
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if (elem.column->empty())
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elem.column = elem.type->createColumnConstWithDefaultValue(1)->convertToFullColumnIfConst();
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bool is_nullable = elem.type->isNullable();
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DataTypePtr type_not_nullable = removeNullable(elem.type);
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const IDataType * type = type_not_nullable.get();
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WhichDataType which(type);
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if (which.isUInt8())
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types.emplace_back(ValueType::vtUInt8, is_nullable);
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else if (which.isUInt16())
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types.emplace_back(ValueType::vtUInt16, is_nullable);
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else if (which.isUInt32())
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types.emplace_back(ValueType::vtUInt32, is_nullable);
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else if (which.isUInt64())
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types.emplace_back(ValueType::vtUInt64, is_nullable);
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else if (which.isInt8())
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types.emplace_back(ValueType::vtInt8, is_nullable);
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else if (which.isInt16())
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types.emplace_back(ValueType::vtInt16, is_nullable);
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else if (which.isInt32())
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types.emplace_back(ValueType::vtInt32, is_nullable);
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else if (which.isInt64())
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types.emplace_back(ValueType::vtInt64, is_nullable);
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else if (which.isFloat32())
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types.emplace_back(ValueType::vtFloat32, is_nullable);
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else if (which.isFloat64())
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types.emplace_back(ValueType::vtFloat64, is_nullable);
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else if (which.isString())
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types.emplace_back(ValueType::vtString, is_nullable);
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else if (which.isDate())
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types.emplace_back(ValueType::vtDate, is_nullable);
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else if (which.isDate32())
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types.emplace_back(ValueType::vtDate32, is_nullable);
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else if (which.isDateTime())
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types.emplace_back(ValueType::vtDateTime, is_nullable);
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else if (which.isUUID())
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types.emplace_back(ValueType::vtUUID, is_nullable);
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else if (which.isEnum8())
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types.emplace_back(ValueType::vtEnum8, is_nullable);
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else if (which.isEnum16())
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types.emplace_back(ValueType::vtEnum16, is_nullable);
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else if (which.isDateTime64())
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types.emplace_back(ValueType::vtDateTime64, is_nullable);
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else if (which.isDecimal32())
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types.emplace_back(ValueType::vtDecimal32, is_nullable);
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else if (which.isDecimal64())
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types.emplace_back(ValueType::vtDecimal64, is_nullable);
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else if (which.isDecimal128())
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types.emplace_back(ValueType::vtDecimal128, is_nullable);
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else if (which.isDecimal256())
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types.emplace_back(ValueType::vtDecimal256, is_nullable);
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else if (which.isArray())
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types.emplace_back(ValueType::vtArray, is_nullable);
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else if (which.isFixedString())
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types.emplace_back(ValueType::vtFixedString, is_nullable);
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else
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throw Exception{"Unsupported type " + type->getName(), ErrorCodes::UNKNOWN_TYPE};
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}
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}
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}
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