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Public Member Functions | Static Public Member Functions | Public Attributes | List of all members
impala_udf::DecimalVal Struct Reference

#include <udf.h>

Inheritance diagram for impala_udf::DecimalVal:
Collaboration diagram for impala_udf::DecimalVal:

Public Member Functions

 DecimalVal ()
 
 DecimalVal (int32_t v)
 
 DecimalVal (int64_t v)
 
 DecimalVal (__int128_t v)
 
DecimalVal & operator= (const DecimalVal &other)
 
 DecimalVal (const DecimalVal &other)
 

Static Public Member Functions

static DecimalVal null ()
 

Public Attributes

union {
   int32_t   val4
 
   int64_t   val8
 
   __int128_t   val16
 
}; 
 
bool is_null
 

Detailed Description

Definition at line 556 of file udf.h.

Constructor & Destructor Documentation

impala_udf::DecimalVal::DecimalVal ( )
inline

Definition at line 575 of file udf.h.

impala_udf::DecimalVal::DecimalVal ( int32_t  v)
inline

Definition at line 576 of file udf.h.

impala_udf::DecimalVal::DecimalVal ( int64_t  v)
inline

Definition at line 577 of file udf.h.

impala_udf::DecimalVal::DecimalVal ( __int128_t  v)
inline

Definition at line 578 of file udf.h.

impala_udf::DecimalVal::DecimalVal ( const DecimalVal &  other)
inline

Definition at line 595 of file udf.h.

Member Function Documentation

static DecimalVal impala_udf::DecimalVal::null ( )
inlinestatic

Definition at line 580 of file udf.h.

References impala_udf::AnyVal::is_null.

Referenced by impala::NullLiteral::GetDecimalVal(), and VarSum().

DecimalVal& impala_udf::DecimalVal::operator= ( const DecimalVal &  other)
inline

Definition at line 586 of file udf.h.

Member Data Documentation

union { ... }

Decimal data is stored as an unscaled integer value. For example, the decimal 1.00 (precison 3, scale 2) is stored as 100. The byte size necessary to store the decimal depends on the precision, which determines which field of the union should be used to store and manipulate the unscaled value. precision between 0-9: val4 (4 bytes) precision between 10-18: val8 (8 bytes) precision between 19-38: val16 (16 bytes) While it is always safe to use a larger field than necessary, it may result in worse performance. For example, a UDF that only uses val16 can handle any precision but may be slower than one that uses val4 or val8.

bool impala_udf::AnyVal::is_null
inherited

Definition at line 359 of file udf.h.

Referenced by impala::UdfBuiltins::Abs(), impala::DecimalFunctions::Abs(), AddUdf(), impala::AggregateFunctions::AppxMedianFinalize(), impala::StringFunctions::Ascii(), impala::AggregateFunctions::AvgInit(), AvgUpdate(), impala::MathFunctions::Bin(), impala::DecimalOperators::CastToBooleanVal(), impala::CastFunctions::CastToChar(), impala::DecimalOperators::CastToDecimalVal(), impala::DecimalOperators::CastToStringVal(), impala::CastFunctions::CastToStringVal(), impala::DecimalOperators::CastToTimestampVal(), impala::CastFunctions::CastToTimestampVal(), impala::StringFunctions::CharLength(), impala::StringFunctions::ConcatWs(), impala::LikePredicate::ConstantEndsWithFn(), impala::LikePredicate::ConstantEqualsFn(), impala::LikePredicate::ConstantRegexFn(), impala::LikePredicate::ConstantRegexFnPartial(), impala::LikePredicate::ConstantStartsWithFn(), impala::LikePredicate::ConstantSubstringFn(), impala::MathFunctions::ConvInt(), impala::MathFunctions::ConvString(), Count2Update(), Count3Update(), Count4Update(), CountInit(), impala::AggregateFunctions::CountMerge(), impala::AggregateFunctions::CountRemove(), impala::AggregateFunctions::CountStarRemove(), impala::AggregateFunctions::CountStarUpdate(), CountUpdate(), impala::AggregateFunctions::CountUpdate(), impala::TimestampFunctions::DateAddSub(), impala::TimestampFunctions::DateDiff(), impala::TimestampFunctions::DayName(), impala::TimestampFunctions::DayOfMonth(), impala::TimestampFunctions::DayOfWeek(), impala::TimestampFunctions::DayOfYear(), impala_udf::DebugString(), impala::AggregateFunctions::DecimalAvgAddOrRemove(), impala::AggregateFunctions::DecimalAvgInit(), impala::UdfBuiltins::DecodeVector(), impala::MathFunctions::Degrees(), impala::AggregateFunctions::DenseRankGetValue(), impala::DistinceEstimateFinalize(), impala::UdfBuiltins::EncodeVector(), impala::AnyValUtil::Equals(), impala::ExecNode::EvalConjuncts(), impala::HiveUdfCall::Evaluate(), impala::UdfBuiltins::Extract(), impala::StringFunctions::FindInSet(), impala::AggregateFunctions::FirstValUpdate(), impala::MathFunctions::FmodDouble(), impala::MathFunctions::FmodFloat(), impala::UtilityFunctions::FnvHashDecimal(), impala::UtilityFunctions::FnvHashString(), impala::UtilityFunctions::FnvHashTimestamp(), impala::TimestampValue::FromTimestampVal(), impala::TimestampFunctions::FromUnix(), impala::TimestampFunctions::FromUtc(), FuzzyCompare(), impala::AndPredicate::GetBooleanVal(), impala::OrPredicate::GetBooleanVal(), impala::GetVal(), impala::ExprContext::GetValue(), impala::MathFunctions::HexInt(), impala::MathFunctions::HexString(), impala::AggregateFunctions::HistogramFinalize(), HllFinalize(), impala::AggregateFunctions::HllFinalize(), HllInit(), impala::AggregateFunctions::HllInit(), HllMerge(), impala::AggregateFunctions::HllMerge(), HllSerialize(), HllUpdate(), impala::AggregateFunctions::HllUpdate(), impala::TimestampFunctions::Hour(), IncrementNdvFinalize(), impala::AggFnEvaluator::Init(), impala::StringFunctions::InitCap(), impala::AggregateFunctions::InitNull(), impala::AggregateFunctions::InitNullString(), impala::AggregateFunctions::InitZero(), impala::StringFunctions::Instr(), impala::ConditionalFunctions::IsFalse(), impala::UdfBuiltins::IsInf(), impala::UdfBuiltins::IsNan(), impala::ConditionalFunctions::IsNotFalse(), impala::IsNullPredicate::IsNotNull(), impala::ConditionalFunctions::IsNotTrue(), impala::IsNullPredicate::IsNull(), impala::ConditionalFunctions::IsTrue(), impala::AggregateFunctions::KnuthStddevFinalize(), impala::AggregateFunctions::KnuthStddevPopFinalize(), impala::AggregateFunctions::KnuthVarInit(), impala::AggregateFunctions::KnuthVarMerge(), impala::AggregateFunctions::KnuthVarPopFinalize(), impala::AggregateFunctions::KnuthVarUpdate(), impala::AggregateFunctions::LastValRemove(), impala::AggregateFunctions::LastValUpdate(), impala::StringFunctions::Length(), impala::LikePredicate::LikePrepare(), impala::StringFunctions::LocatePos(), impala::MathFunctions::Log(), impala::MathFunctions::Log2(), LogUdf(), impala::UdfBuiltins::Lower(), impala::StringFunctions::Lower(), impala::StringFunctions::Lpad(), impala::StringFunctions::Ltrim(), impala::AggregateFunctions::Max(), MemTestFinalize(), MemTestMerge(), MemTestSerialize(), MemTestUpdate(), impala::AggregateFunctions::Min(), Min3(), MinUpdate(), impala::TimestampFunctions::Minute(), impala::TimestampFunctions::Month(), impala::MathFunctions::Negative(), impala::CompoundPredicate::Not(), impala_udf::BooleanVal::null(), impala_udf::TinyIntVal::null(), impala_udf::SmallIntVal::null(), impala_udf::IntVal::null(), impala_udf::BigIntVal::null(), impala_udf::FloatVal::null(), impala_udf::DoubleVal::null(), impala_udf::TimestampVal::null(), impala_udf::StringVal::null(), null(), impala::ConditionalFunctions::NullIfZero(), impala_udf::BooleanVal::operator==(), impala_udf::TinyIntVal::operator==(), impala_udf::SmallIntVal::operator==(), impala_udf::IntVal::operator==(), impala_udf::BigIntVal::operator==(), impala_udf::FloatVal::operator==(), impala_udf::DoubleVal::operator==(), impala_udf::TimestampVal::operator==(), impala_udf::StringVal::operator==(), impala::StringFunctions::ParseUrl(), impala::StringFunctions::ParseUrlKey(), impala::AggregateFunctions::PcFinalize(), impala::AggregateFunctions::PcInit(), impala::AggregateFunctions::PcMerge(), impala::AggregateFunctions::PcsaFinalize(), impala::MathFunctions::PmodBigInt(), impala::MathFunctions::PmodDouble(), impala::MathFunctions::Pow(), impala::AnalyticEvalNode::PrevRowCompare(), impala::MathFunctions::QuotientDouble(), impala::MathFunctions::Radians(), impala::MathFunctions::RandSeed(), impala::AggregateFunctions::RankFinalize(), impala::AggregateFunctions::RankGetValue(), impala::AggregateFunctions::RankInit(), impala::AggregateFunctions::RankUpdate(), impala::LikePredicate::RegexMatch(), impala::StringFunctions::RegexpExtract(), impala::LikePredicate::RegexPrepare(), impala::StringFunctions::RegexpReplace(), impala::StringFunctions::Repeat(), impala::TimestampFunctions::ReportBadFormat(), impala::AggregateFunctions::ReservoirSampleFinalize(), impala::AggregateFunctions::ReservoirSampleInit(), impala::AggregateFunctions::ReservoirSampleMerge(), impala::AggregateFunctions::ReservoirSampleSerialize(), impala::AggregateFunctions::ReservoirSampleUpdate(), impala::StringFunctions::Reverse(), impala::MathFunctions::Round(), impala::DecimalOperators::RoundDecimal(), impala::DecimalOperators::RoundDecimalNegativeScale(), impala::DecimalFunctions::RoundTo(), impala::MathFunctions::RoundUpTo(), impala::StringFunctions::Rpad(), impala::StringFunctions::Rtrim(), impala::TimestampFunctions::Second(), impala::AnyValUtil::SetAnyVal(), impala::AggFnEvaluator::SetDstSlot(), impala::MathFunctions::Sign(), impala::UtilityFunctions::Sleep(), impala::StringFunctions::Space(), impala::AggregateFunctions::StringConcatFinalize(), StringConcatInit(), StringConcatMerge(), impala::AggregateFunctions::StringConcatMerge(), StringConcatUpdate(), impala::AggregateFunctions::StringConcatUpdate(), impala::AggregateFunctions::StringValGetValue(), impala::AggregateFunctions::StringValSerializeOrFinalize(), impala::StringFunctions::Substring(), impala::AggregateFunctions::SumDecimalAddOrSubtract(), impala::AggregateFunctions::SumDecimalMerge(), SumSmallDecimalInit(), SumSmallDecimalMerge(), SumSmallDecimalUpdate(), impala::InPredicate::TemplatedIn(), TEST(), impala::TimestampFunctions::TimeAddSub(), impala::AggregateFunctions::TimestampAvgRemove(), impala::AggregateFunctions::TimestampAvgUpdate(), impala::TimestampFunctions::ToDate(), impala::TimestampValue::ToTimestampVal(), impala::TimestampFunctions::ToUtc(), impala::StringFunctions::Translate(), impala::StringFunctions::Trim(), impala::UdfBuiltins::Trunc(), impala::DecimalFunctions::TruncateTo(), impala::MathFunctions::Unhex(), impala::TimestampFunctions::Unix(), impala::TimestampFunctions::UnixAndFromUnixPrepare(), impala::TimestampFunctions::UnixFromString(), impala::StringFunctions::Upper(), UpperUdf(), VarSumMultiply(), impala::UdfBuiltins::VectorGet(), impala::TimestampFunctions::WeekOfYear(), XorInit(), and impala::TimestampFunctions::Year().

__int128_t impala_udf::DecimalVal::val16

Definition at line 572 of file udf.h.

Referenced by impala::DecimalFunctions::Abs(), impala::DecimalOperators::CastToBooleanVal(), impala::DecimalOperators::CastToStringVal(), impala::DecimalOperators::CastToTimestampVal(), impala::AggregateFunctions::DecimalAvgAddOrRemove(), impala::AggregateFunctions::DecimalAvgGetValue(), impala::AggregateFunctions::DecimalAvgMerge(), impala::AnyValUtil::Equals(), impala::UtilityFunctions::FnvHashDecimal(), impala::GetDecimal16Value(), impala::GetDecimal4Value(), impala::GetDecimal8Value(), impala::GetVal(), impala::ExprContext::GetValue(), impala::AnyValUtil::Hash(), impala::AnyValUtil::Hash64(), impala::AggregateFunctions::InitZero(), impala::MathFunctions::LeastGreatest(), impala::AggregateFunctions::Max(), impala::AggregateFunctions::Min(), impala::MathFunctions::Negative(), impala::ConditionalFunctions::NullIfZero(), impala::PrintSample(), impala::DecimalOperators::RoundDecimal(), impala::DecimalOperators::RoundDecimalNegativeScale(), impala::SampleValLess(), impala::AggregateFunctions::SumDecimalAddOrSubtract(), impala::AggregateFunctions::SumDecimalMerge(), and TEST().

int32_t impala_udf::DecimalVal::val4

Definition at line 570 of file udf.h.

Referenced by impala::DecimalFunctions::Abs(), AllTypes(), impala::DecimalOperators::CastToBooleanVal(), impala::DecimalOperators::CastToStringVal(), impala::DecimalOperators::CastToTimestampVal(), impala::AggregateFunctions::DecimalAvgAddOrRemove(), impala::AnyValUtil::Equals(), impala::GetDecimal16Value(), impala::GetDecimal4Value(), impala::GetDecimal8Value(), impala::GetVal(), impala::ExprContext::GetValue(), impala::AnyValUtil::Hash(), impala::AnyValUtil::Hash64(), impala::MathFunctions::LeastGreatest(), impala::AggregateFunctions::Max(), impala::AggregateFunctions::Min(), impala::MathFunctions::Negative(), impala::ConditionalFunctions::NullIfZero(), impala::DecimalOperators::RoundDecimal(), impala::DecimalOperators::RoundDecimalNegativeScale(), impala::AggregateFunctions::SumDecimalAddOrSubtract(), SumSmallDecimalInit(), SumSmallDecimalMerge(), SumSmallDecimalUpdate(), and VarSum().

int64_t impala_udf::DecimalVal::val8

Definition at line 571 of file udf.h.

Referenced by impala::DecimalFunctions::Abs(), impala::DecimalOperators::CastToBooleanVal(), impala::DecimalOperators::CastToStringVal(), impala::DecimalOperators::CastToTimestampVal(), impala::AggregateFunctions::DecimalAvgAddOrRemove(), impala::AnyValUtil::Equals(), impala::GetDecimal16Value(), impala::GetDecimal4Value(), impala::GetDecimal8Value(), impala::GetVal(), impala::ExprContext::GetValue(), impala::AnyValUtil::Hash(), impala::AnyValUtil::Hash64(), impala::MathFunctions::LeastGreatest(), impala::AggregateFunctions::Max(), impala::AggregateFunctions::Min(), impala::MathFunctions::Negative(), impala::ConditionalFunctions::NullIfZero(), impala::DecimalOperators::RoundDecimal(), impala::DecimalOperators::RoundDecimalNegativeScale(), and impala::AggregateFunctions::SumDecimalAddOrSubtract().

The documentation for this struct was generated from the following file: