decimal-operators.cc File Reference

#include "exprs/decimal-operators.h"
#include <iomanip>
#include <sstream>
#include <math.h>
#include "exprs/anyval-util.h"
#include "exprs/case-expr.h"
#include "exprs/expr.h"
#include "runtime/tuple-row.h"
#include "util/decimal-util.h"
#include "util/string-parser.h"
#include "common/names.h"

Include dependency graph for decimal-operators.cc:

Go to the source code of this file.

Namespaces
	impala
	This file contains type definitions that are used throughout the code base.

Macros
#define	RETURN_IF_OVERFLOW(context, overflow)
#define	CAST_INT_TO_DECIMAL(from_type)
#define	CAST_FLOAT_TO_DECIMAL(from_type)
#define	CAST_DECIMAL_TO_INT(to_type)
#define	CAST_DECIMAL_TO_FLOAT(to_type)
#define	DECIMAL_ARITHMETIC_OP(FN_NAME, OP_FN)
#define	DECIMAL_ARITHMETIC_OP_CHECK_NAN(FN_NAME, OP_FN)
#define	DECIMAL_BINARY_OP(FN_NAME, OP_FN)

Functions
static Decimal4Value	impala::GetDecimal4Value (const DecimalVal &val, const ColumnType &type, bool *overflow)
static Decimal8Value	impala::GetDecimal8Value (const DecimalVal &val, const ColumnType &type, bool *overflow)
static Decimal16Value	impala::GetDecimal16Value (const DecimalVal &val, const ColumnType &type, bool *overflow)

Macro Definition Documentation

#define CAST_DECIMAL_TO_FLOAT

(

to_type

)

Value:

to_type DecimalOperators::CastTo##to_type( \
      FunctionContext* context, const DecimalVal& val) { \
    if (val.is_null) return to_type::null(); \
    ColumnType type = AnyValUtil::TypeDescToColumnType(*context->GetArgType(0)); \
    switch (type.GetByteSize()) {                                      \
      case 4: { \
        Decimal4Value dv(val.val4); \
        return to_type(dv.ToDouble(type)); \
      } \
      case 8: { \
        Decimal8Value dv(val.val8); \
        return to_type(dv.ToDouble(type)); \
      } \
      case 16: { \
        Decimal16Value dv(val.val16); \
        return to_type(dv.ToDouble(type)); \
      } \
      default:\
        DCHECK(false); \
        return to_type::null(); \
    } \
  }

Definition at line 268 of file decimal-operators.cc.

#define CAST_DECIMAL_TO_INT

(

to_type

)

Value:

to_type DecimalOperators::CastTo##to_type( \
      FunctionContext* context, const DecimalVal& val) { \
    if (val.is_null) return to_type::null(); \
    ColumnType type = AnyValUtil::TypeDescToColumnType(*context->GetArgType(0)); \
    switch (type.GetByteSize()) {                                      \
      case 4: { \
        Decimal4Value dv(val.val4); \
        return to_type(dv.whole_part(type)); \
      } \
      case 8: { \
        Decimal8Value dv(val.val8); \
        return to_type(dv.whole_part(type)); \
      } \
      case 16: { \
        Decimal16Value dv(val.val16); \
        return to_type(dv.whole_part(type)); \
      } \
      default:\
        DCHECK(false); \
        return to_type::null(); \
    } \
  }

Definition at line 244 of file decimal-operators.cc.

#define CAST_FLOAT_TO_DECIMAL

(

from_type

)

Value:

DecimalVal DecimalOperators::CastToDecimalVal( \
      FunctionContext* context, const from_type& val) { \
    if (val.is_null) return DecimalVal::null(); \
    ColumnType type = AnyValUtil::TypeDescToColumnType(context->GetReturnType()); \
    return FloatToDecimalVal(context, type, val.val); \
  }

Definition at line 236 of file decimal-operators.cc.

#define CAST_INT_TO_DECIMAL

(

from_type

)

Value:

DecimalVal DecimalOperators::CastToDecimalVal( \
      FunctionContext* context, const from_type& val) { \
    if (val.is_null) return DecimalVal::null(); \
    ColumnType type = AnyValUtil::TypeDescToColumnType(context->GetReturnType()); \
    return IntToDecimalVal(context, type, val.val); \
  }

Definition at line 228 of file decimal-operators.cc.

#define DECIMAL_ARITHMETIC_OP	(		FN_NAME,
			OP_FN
	)

Definition at line 552 of file decimal-operators.cc.

#define DECIMAL_ARITHMETIC_OP_CHECK_NAN	(		FN_NAME,
			OP_FN
	)

Definition at line 591 of file decimal-operators.cc.

#define DECIMAL_BINARY_OP	(		FN_NAME,
			OP_FN
	)

Definition at line 634 of file decimal-operators.cc.

#define RETURN_IF_OVERFLOW	(		context,
			overflow
	)

Value:

do {\
    if (UNLIKELY(overflow)) {\
      context->AddWarning("Expression overflowed, returning NULL");\
      return DecimalVal::null();\
    }\
  } while (false)

Definition at line 32 of file decimal-operators.cc.

Referenced by impala::DecimalOperators::FloatToDecimalVal(), impala::DecimalOperators::IntToDecimalVal(), and impala::DecimalOperators::ScaleDecimalValue().