mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-18 21:44:02 +03:00
259 lines
7.2 KiB
C++
259 lines
7.2 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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Copyright (C) 2019 MariaDB Corporation
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: simplecolumn_int.h 9635 2013-06-19 21:42:30Z bwilkinson $
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*
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*
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***********************************************************************/
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/** @file */
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#pragma once
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#include <iostream>
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#include <string>
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#include "simplecolumn.h"
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#include "objectreader.h"
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#include "joblisttypes.h"
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#include "rowgroup.h"
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#include "mcs_decimal.h"
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/**
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* Namespace
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*/
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namespace execplan
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{
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/**
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* @brief A class to represent a simple returned column
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*
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* This class is a specialization of class ReturnedColumn that handles
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* a column name.
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*/
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template <int len>
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class SimpleColumn_INT : public SimpleColumn
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{
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/**
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* Public stuff
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*/
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public:
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/** Constructors */
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SimpleColumn_INT();
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explicit SimpleColumn_INT(const std::string& token, const uint32_t sessionID = 0);
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SimpleColumn_INT(const std::string& schema, const std::string& table, const std::string& col,
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const bool isColumnStore, const uint32_t sessionID = 0);
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explicit SimpleColumn_INT(const SimpleColumn& rhs, const uint32_t sessionID = 0);
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/** Destructor */
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~SimpleColumn_INT() override = default;
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inline SimpleColumn_INT* clone() const override
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{
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return new SimpleColumn_INT<len>(*this);
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}
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/** Evaluate methods */
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inline const utils::NullString& getStrVal(rowgroup::Row& row, bool& isNull) override;
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inline int64_t getIntVal(rowgroup::Row& row, bool& isNull) override;
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inline uint64_t getUintVal(rowgroup::Row& row, bool& isNull) override;
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inline float getFloatVal(rowgroup::Row& row, bool& isNull) override;
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inline double getDoubleVal(rowgroup::Row& row, bool& isNull) override;
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inline long double getLongDoubleVal(rowgroup::Row& row, bool& isNull) override;
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inline IDB_Decimal getDecimalVal(rowgroup::Row& row, bool& isNull) override;
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/** The serialize interface */
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void serialize(messageqcpp::ByteStream&) const override;
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void unserialize(messageqcpp::ByteStream&) override;
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uint64_t fNullVal;
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std::string toCppCode(IncludeSet& includes) const override;
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private:
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void setNullVal();
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};
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template <int len>
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std::string SimpleColumn_INT<len>::toCppCode(IncludeSet& includes) const
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{
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includes.insert("simplecolumn_int.h");
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std::stringstream ss;
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ss << "SimpleColumn_INT<" << len << ">(" << std::quoted(fSchemaName) << ", " << std::quoted(fTableName)
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<< ", " << std::quoted(fColumnName) << ", " << fisColumnStore << ", " << sessionID() << ")";
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return ss.str();
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}
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template <int len>
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SimpleColumn_INT<len>::SimpleColumn_INT() : SimpleColumn()
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{
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setNullVal();
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}
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template <int len>
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SimpleColumn_INT<len>::SimpleColumn_INT(const std::string& token, const uint32_t sessionID)
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: SimpleColumn(token, sessionID)
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{
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setNullVal();
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}
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template <int len>
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SimpleColumn_INT<len>::SimpleColumn_INT(const std::string& schema, const std::string& table,
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const std::string& col, const bool isColumnStore,
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const uint32_t sessionID)
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: SimpleColumn(schema, table, col, isColumnStore, sessionID)
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{
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setNullVal();
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}
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template <int len>
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SimpleColumn_INT<len>::SimpleColumn_INT(const SimpleColumn& rhs, const uint32_t sessionID)
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: SimpleColumn(rhs, sessionID)
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{
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setNullVal();
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}
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template <int len>
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void SimpleColumn_INT<len>::setNullVal()
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{
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switch (len)
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{
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case 8: fNullVal = joblist::BIGINTNULL; break;
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case 4: fNullVal = joblist::INTNULL; break;
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case 2: fNullVal = joblist::SMALLINTNULL; break;
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case 1: fNullVal = joblist::TINYINTNULL; break;
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default: fNullVal = joblist::BIGINTNULL;
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}
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}
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template <int len>
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inline const utils::NullString& SimpleColumn_INT<len>::getStrVal(rowgroup::Row& row, bool& isNull)
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{
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if (row.equals<len>(fNullVal, fInputIndex))
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{
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isNull = true;
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fResult.strVal.dropString();
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}
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else
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{
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#ifndef __LP64__
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snprintf(tmp, 20, "%lld", (int64_t)row.getIntField<len>(fInputIndex));
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#else
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snprintf(tmp, 20, "%ld", (int64_t)row.getIntField<len>(fInputIndex));
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#endif
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fResult.strVal.assign(std::string(tmp));
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}
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return fResult.strVal;
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}
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template <int len>
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inline int64_t SimpleColumn_INT<len>::getIntVal(rowgroup::Row& row, bool& isNull)
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{
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if (row.equals<len>(fNullVal, fInputIndex))
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isNull = true;
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return (int64_t)row.getIntField<len>(fInputIndex);
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}
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template <int len>
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inline uint64_t SimpleColumn_INT<len>::getUintVal(rowgroup::Row& row, bool& isNull)
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{
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if (row.equals<len>(fNullVal, fInputIndex))
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isNull = true;
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return (uint64_t)row.getIntField<len>(fInputIndex);
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}
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template <int len>
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inline float SimpleColumn_INT<len>::getFloatVal(rowgroup::Row& row, bool& isNull)
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{
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if (row.equals<len>(fNullVal, fInputIndex))
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isNull = true;
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return (float)row.getIntField<len>(fInputIndex);
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}
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template <int len>
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inline double SimpleColumn_INT<len>::getDoubleVal(rowgroup::Row& row, bool& isNull)
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{
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if (row.equals<len>(fNullVal, fInputIndex))
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isNull = true;
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return (double)row.getIntField<len>(fInputIndex);
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}
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template <int len>
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inline long double SimpleColumn_INT<len>::getLongDoubleVal(rowgroup::Row& row, bool& isNull)
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{
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if (row.equals<len>(fNullVal, fInputIndex))
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isNull = true;
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return (long double)row.getIntField<len>(fInputIndex);
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}
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template <int len>
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inline IDB_Decimal SimpleColumn_INT<len>::getDecimalVal(rowgroup::Row& row, bool& isNull)
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{
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if (row.equals<len>(fNullVal, fInputIndex))
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isNull = true;
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fResult.decimalVal.value = (int64_t)row.getIntField<len>(fInputIndex);
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fResult.decimalVal.precision = datatypes::INT64MAXPRECISION;
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fResult.decimalVal.scale = 0;
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return fResult.decimalVal;
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}
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template <int len>
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void SimpleColumn_INT<len>::serialize(messageqcpp::ByteStream& b) const
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{
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switch (len)
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{
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case 1: b << (ObjectReader::id_t)ObjectReader::SIMPLECOLUMN_INT1; break;
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case 2: b << (ObjectReader::id_t)ObjectReader::SIMPLECOLUMN_INT2; break;
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case 4: b << (ObjectReader::id_t)ObjectReader::SIMPLECOLUMN_INT4; break;
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case 8: b << (ObjectReader::id_t)ObjectReader::SIMPLECOLUMN_INT8; break;
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}
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SimpleColumn::serialize(b);
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}
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template <int len>
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void SimpleColumn_INT<len>::unserialize(messageqcpp::ByteStream& b)
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{
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switch (len)
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{
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case 1: ObjectReader::checkType(b, ObjectReader::SIMPLECOLUMN_INT1); break;
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case 2: ObjectReader::checkType(b, ObjectReader::SIMPLECOLUMN_INT2); break;
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case 4: ObjectReader::checkType(b, ObjectReader::SIMPLECOLUMN_INT4); break;
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case 8: ObjectReader::checkType(b, ObjectReader::SIMPLECOLUMN_INT8); break;
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}
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SimpleColumn::unserialize(b);
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}
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} // namespace execplan
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