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Leonid Fedorov
@ -17,10 +17,10 @@
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: functioncolumn.h 9679 2013-07-11 22:32:03Z zzhu $
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*
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*
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***********************************************************************/
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* $Id: functioncolumn.h 9679 2013-07-11 22:32:03Z zzhu $
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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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@ -41,7 +41,6 @@ class ByteStream;
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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 functional column
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*
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@ -50,279 +49,279 @@ namespace execplan
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*/
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class FunctionColumn : public ReturnedColumn
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{
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public:
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FunctionColumn();
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FunctionColumn(std::string& funcName);
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FunctionColumn(const std::string& functionName, const std::string& funcParmsInString,
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const uint32_t sessionID = 0);
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FunctionColumn(const FunctionColumn& rhs, const uint32_t sessionID = 0);
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virtual ~FunctionColumn();
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public:
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FunctionColumn();
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FunctionColumn(std::string& funcName);
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FunctionColumn(const std::string& functionName, const std::string& funcParmsInString, const uint32_t sessionID = 0);
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FunctionColumn( const FunctionColumn& rhs, const uint32_t sessionID = 0);
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virtual ~FunctionColumn();
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/** get function name
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*
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* get the function name for this function column
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*/
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inline const std::string& functionName() const
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{
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return fFunctionName;
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}
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/** get function name
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*
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* get the function name for this function column
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*/
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inline const std::string& functionName() const
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/** set function name
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*
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* set the function name for this function column
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*/
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inline void functionName(const std::string functionName)
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{
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fFunctionName = functionName;
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}
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/** get function parameters
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*
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* get the function parameters for this function column.
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* @return a vector of paramenters in string format
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*/
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inline const funcexp::FunctionParm& functionParms() const
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{
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return fFunctionParms;
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}
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/** set function parameters
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*
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* set the function parameters for this function column.
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*/
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void functionParms(const funcexp::FunctionParm& functionParms)
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{
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fFunctionParms = functionParms;
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}
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/** set function parameters
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*
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* set the function parameters for this function column.
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* pass in the functionParms with parenthesis as one string.
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* tokenize the string with ' ' or ',' and form a vector of
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* parameters in string.
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*/
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void funcParms(const std::string& funcParmsInString);
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/** get table alias name
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*
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* get the table alias name for this function
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*/
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inline const std::string& tableAlias() const
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{
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return fTableAlias;
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}
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/** set table alias name
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*
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* set the table alias name for this function
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*/
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inline void tableAlias(const std::string& tableAlias)
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{
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fTableAlias = tableAlias;
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}
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inline const std::string timeZone() const
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{
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return fTimeZone;
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}
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inline void timeZone(const std::string& timeZone)
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{
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fTimeZone = timeZone;
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}
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virtual const std::string data() const;
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virtual void data(const std::string data)
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{
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fData = data;
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}
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virtual const std::string toString() const;
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/** return a copy of this pointer
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*
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* deep copy of this pointer and return the copy
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*/
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inline virtual FunctionColumn* clone() const
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{
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return new FunctionColumn(*this);
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}
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/**
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* The serialization interface
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*/
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virtual void serialize(messageqcpp::ByteStream&) const;
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virtual void unserialize(messageqcpp::ByteStream&);
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using ReturnedColumn::hasAggregate;
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virtual bool hasAggregate();
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virtual bool hasWindowFunc();
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virtual void setDerivedTable();
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virtual void replaceRealCol(std::vector<SRCP>&);
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virtual const std::vector<SimpleColumn*>& simpleColumnList() const
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{
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return fSimpleColumnList;
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}
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virtual void setSimpleColumnList();
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/**
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* Return the tableAlias name of the table that the column arguments belong to.
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*
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* @param TableAliasName that will be set in the function
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* @return true, if all arguments belong to one table
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* false, if multiple tables are involved in the function
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*/
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virtual bool singleTable(CalpontSystemCatalog::TableAliasName& tan);
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private:
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/**
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* Fields
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*/
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std::string fFunctionName; /// function name
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std::string fTableAlias; /// table alias which has the column
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std::string fData; /// SQL representation
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std::string fTimeZone;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return true iff every member of t is a duplicate copy of every member of this; false otherwise
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*/
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virtual bool operator==(const TreeNode* t) const;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return true iff every member of t is a duplicate copy of every member of this; false otherwise
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*/
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bool operator==(const FunctionColumn& t) const;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return false iff every member of t is a duplicate copy of every member of this; true otherwise
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*/
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virtual bool operator!=(const TreeNode* t) const;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return false iff every member of t is a duplicate copy of every member of this; true otherwise
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*/
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bool operator!=(const FunctionColumn& t) const;
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/***********************************************************
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* F&E framework *
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***********************************************************/
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public:
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virtual const std::string& getStrVal(rowgroup::Row& row, bool& isNull)
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{
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fResult.strVal = fFunctor->getStrVal(row, fFunctionParms, isNull, fOperationType);
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return fResult.strVal;
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}
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virtual int64_t getIntVal(rowgroup::Row& row, bool& isNull)
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{
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return fFunctor->getIntVal(row, fFunctionParms, isNull, fOperationType);
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}
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virtual uint64_t getUintVal(rowgroup::Row& row, bool& isNull)
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{
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return fFunctor->getUintVal(row, fFunctionParms, isNull, fOperationType);
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}
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virtual float getFloatVal(rowgroup::Row& row, bool& isNull)
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{
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return fFunctor->getFloatVal(row, fFunctionParms, isNull, fOperationType);
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}
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virtual double getDoubleVal(rowgroup::Row& row, bool& isNull)
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{
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return fFunctor->getDoubleVal(row, fFunctionParms, isNull, fOperationType);
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}
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virtual long double getLongDoubleVal(rowgroup::Row& row, bool& isNull)
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{
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return fFunctor->getLongDoubleVal(row, fFunctionParms, isNull, fOperationType);
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}
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virtual IDB_Decimal getDecimalVal(rowgroup::Row& row, bool& isNull)
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{
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IDB_Decimal decimal = fFunctor->getDecimalVal(row, fFunctionParms, isNull, fOperationType);
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if (UNLIKELY(fResultType.colWidth == utils::MAXLEGACYWIDTH && fResultType.scale == decimal.scale))
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return decimal;
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if (LIKELY(fResultType.isWideDecimalType()))
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{
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return fFunctionName;
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}
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decimal.s128Value = (datatypes::Decimal::isWideDecimalTypeByPrecision(decimal.precision))
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? decimal.s128Value
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: decimal.value;
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/** set function name
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*
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* set the function name for this function column
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*/
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inline void functionName(const std::string functionName)
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{
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fFunctionName = functionName;
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}
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int128_t scaleMultiplier;
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int32_t scaleDiff = fResultType.scale - decimal.scale;
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datatypes::getScaleDivisor(scaleMultiplier, abs(scaleDiff));
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/** get function parameters
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*
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* get the function parameters for this function column.
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* @return a vector of paramenters in string format
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*/
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inline const funcexp::FunctionParm& functionParms() const
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{
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return fFunctionParms;
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}
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/** set function parameters
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*
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* set the function parameters for this function column.
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*/
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void functionParms(const funcexp::FunctionParm& functionParms)
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{
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fFunctionParms = functionParms;
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}
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/** set function parameters
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*
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* set the function parameters for this function column.
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* pass in the functionParms with parenthesis as one string.
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* tokenize the string with ' ' or ',' and form a vector of
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* parameters in string.
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*/
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void funcParms(const std::string& funcParmsInString);
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/** get table alias name
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*
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* get the table alias name for this function
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*/
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inline const std::string& tableAlias () const
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{
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return fTableAlias;
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}
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/** set table alias name
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*
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* set the table alias name for this function
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*/
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inline void tableAlias (const std::string& tableAlias)
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{
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fTableAlias = tableAlias;
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}
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inline const std::string timeZone () const
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{
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return fTimeZone;
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}
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inline void timeZone (const std::string& timeZone)
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{
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fTimeZone = timeZone;
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}
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virtual const std::string data() const;
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virtual void data(const std::string data)
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{
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fData = data;
|
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}
|
||||
|
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virtual const std::string toString() const;
|
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|
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/** return a copy of this pointer
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*
|
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* deep copy of this pointer and return the copy
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*/
|
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inline virtual FunctionColumn* clone() const
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{
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return new FunctionColumn (*this);
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}
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/**
|
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* The serialization interface
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*/
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virtual void serialize(messageqcpp::ByteStream&) const;
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virtual void unserialize(messageqcpp::ByteStream&);
|
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|
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using ReturnedColumn::hasAggregate;
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virtual bool hasAggregate();
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virtual bool hasWindowFunc();
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virtual void setDerivedTable();
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virtual void replaceRealCol(std::vector<SRCP>&);
|
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virtual const std::vector<SimpleColumn*>& simpleColumnList() const
|
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{
|
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return fSimpleColumnList;
|
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}
|
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|
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virtual void setSimpleColumnList();
|
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/**
|
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* Return the tableAlias name of the table that the column arguments belong to.
|
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*
|
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* @param TableAliasName that will be set in the function
|
||||
* @return true, if all arguments belong to one table
|
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* false, if multiple tables are involved in the function
|
||||
*/
|
||||
virtual bool singleTable(CalpontSystemCatalog::TableAliasName& tan);
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|
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private:
|
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/**
|
||||
* Fields
|
||||
*/
|
||||
std::string fFunctionName; /// function name
|
||||
std::string fTableAlias; /// table alias which has the column
|
||||
std::string fData; /// SQL representation
|
||||
std::string fTimeZone;
|
||||
|
||||
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
||||
*
|
||||
* Do a deep, strict (as opposed to semantic) equivalence test.
|
||||
* @return true iff every member of t is a duplicate copy of every member of this; false otherwise
|
||||
*/
|
||||
virtual bool operator==(const TreeNode* t) const;
|
||||
|
||||
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
||||
*
|
||||
* Do a deep, strict (as opposed to semantic) equivalence test.
|
||||
* @return true iff every member of t is a duplicate copy of every member of this; false otherwise
|
||||
*/
|
||||
bool operator==(const FunctionColumn& t) const;
|
||||
|
||||
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
||||
*
|
||||
* Do a deep, strict (as opposed to semantic) equivalence test.
|
||||
* @return false iff every member of t is a duplicate copy of every member of this; true otherwise
|
||||
*/
|
||||
virtual bool operator!=(const TreeNode* t) const;
|
||||
|
||||
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
||||
*
|
||||
* Do a deep, strict (as opposed to semantic) equivalence test.
|
||||
* @return false iff every member of t is a duplicate copy of every member of this; true otherwise
|
||||
*/
|
||||
bool operator!=(const FunctionColumn& t) const;
|
||||
|
||||
/***********************************************************
|
||||
* F&E framework *
|
||||
***********************************************************/
|
||||
public:
|
||||
virtual const std::string& getStrVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
fResult.strVal = fFunctor->getStrVal(row, fFunctionParms, isNull, fOperationType);
|
||||
return fResult.strVal;
|
||||
}
|
||||
virtual int64_t getIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual uint64_t getUintVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getUintVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual float getFloatVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getFloatVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual double getDoubleVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getDoubleVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual long double getLongDoubleVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getLongDoubleVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual IDB_Decimal getDecimalVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
IDB_Decimal decimal = fFunctor->getDecimalVal(row, fFunctionParms, isNull, fOperationType);
|
||||
|
||||
if (UNLIKELY(fResultType.colWidth == utils::MAXLEGACYWIDTH
|
||||
&& fResultType.scale == decimal.scale))
|
||||
return decimal;
|
||||
|
||||
if (LIKELY(fResultType.isWideDecimalType()))
|
||||
if (scaleMultiplier > 1)
|
||||
{
|
||||
if (scaleDiff > 0)
|
||||
{
|
||||
decimal.s128Value =
|
||||
(datatypes::Decimal::isWideDecimalTypeByPrecision(decimal.precision)) ?
|
||||
decimal.s128Value : decimal.value;
|
||||
|
||||
int128_t scaleMultiplier;
|
||||
int32_t scaleDiff = fResultType.scale - decimal.scale;
|
||||
datatypes::getScaleDivisor(scaleMultiplier, abs(scaleDiff));
|
||||
|
||||
if (scaleMultiplier > 1)
|
||||
{
|
||||
if (scaleDiff > 0)
|
||||
{
|
||||
// TODO MCOL-641 Unconditional overflow check
|
||||
datatypes::MultiplicationNoOverflowCheck mul;
|
||||
mul(decimal.s128Value, scaleMultiplier, decimal.s128Value);
|
||||
}
|
||||
else
|
||||
{
|
||||
decimal = decimal.integralWideRound();
|
||||
}
|
||||
}
|
||||
// TODO MCOL-641 Unconditional overflow check
|
||||
datatypes::MultiplicationNoOverflowCheck mul;
|
||||
mul(decimal.s128Value, scaleMultiplier, decimal.s128Value);
|
||||
}
|
||||
else if (fResultType.colWidth == utils::MAXLEGACYWIDTH)
|
||||
else
|
||||
{
|
||||
if (fResultType.scale > decimal.scale)
|
||||
decimal.value *= IDB_pow[fResultType.scale - decimal.scale];
|
||||
else
|
||||
decimal.value = (int64_t)(decimal.value > 0 ?
|
||||
(double)decimal.value / IDB_pow[decimal.scale - fResultType.scale] + 0.5 :
|
||||
(double)decimal.value / IDB_pow[decimal.scale - fResultType.scale] - 0.5);
|
||||
decimal = decimal.integralWideRound();
|
||||
}
|
||||
|
||||
decimal.scale = fResultType.scale;
|
||||
decimal.precision = std::max(fResultType.precision, static_cast<int32_t>(decimal.precision));
|
||||
return decimal;
|
||||
}
|
||||
}
|
||||
virtual bool getBoolVal(rowgroup::Row& row, bool& isNull)
|
||||
else if (fResultType.colWidth == utils::MAXLEGACYWIDTH)
|
||||
{
|
||||
return fFunctor->getBoolVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int32_t getDateIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getDateIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int64_t getDatetimeIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getDatetimeIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int64_t getTimestampIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getTimestampIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int64_t getTimeIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getTimeIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
if (fResultType.scale > decimal.scale)
|
||||
decimal.value *= IDB_pow[fResultType.scale - decimal.scale];
|
||||
else
|
||||
decimal.value =
|
||||
(int64_t)(decimal.value > 0
|
||||
? (double)decimal.value / IDB_pow[decimal.scale - fResultType.scale] + 0.5
|
||||
: (double)decimal.value / IDB_pow[decimal.scale - fResultType.scale] - 0.5);
|
||||
}
|
||||
|
||||
void setFunctor(funcexp::Func* functor)
|
||||
{
|
||||
fFunctor = functor;
|
||||
}
|
||||
private:
|
||||
funcexp::FunctionParm fFunctionParms;
|
||||
funcexp::Func* fFunctor; /// functor to execute this function
|
||||
funcexp::Func* fDynamicFunctor = NULL; // for rand encode decode
|
||||
bool fFixed = false;
|
||||
decimal.scale = fResultType.scale;
|
||||
decimal.precision = std::max(fResultType.precision, static_cast<int32_t>(decimal.precision));
|
||||
return decimal;
|
||||
}
|
||||
virtual bool getBoolVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getBoolVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int32_t getDateIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getDateIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int64_t getDatetimeIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getDatetimeIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int64_t getTimestampIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getTimestampIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
virtual int64_t getTimeIntVal(rowgroup::Row& row, bool& isNull)
|
||||
{
|
||||
return fFunctor->getTimeIntVal(row, fFunctionParms, isNull, fOperationType);
|
||||
}
|
||||
|
||||
void setFunctor(funcexp::Func* functor)
|
||||
{
|
||||
fFunctor = functor;
|
||||
}
|
||||
|
||||
private:
|
||||
funcexp::FunctionParm fFunctionParms;
|
||||
funcexp::Func* fFunctor; /// functor to execute this function
|
||||
funcexp::Func* fDynamicFunctor = NULL; // for rand encode decode
|
||||
bool fFixed = false;
|
||||
};
|
||||
|
||||
/**
|
||||
* ostream operator
|
||||
*/
|
||||
* ostream operator
|
||||
*/
|
||||
std::ostream& operator<<(std::ostream& output, const FunctionColumn& rhs);
|
||||
|
||||
}
|
||||
|
||||
} // namespace execplan
|
||||
|
||||
Reference in New Issue
Block a user