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common

package

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Versions in this module

v0

v0.0.2

Sep 5, 2019

Changes in this version

+ const HeadersKey

+ const MatrixDataKey

+ const NULLString

+ var DataTypeToExprType = map[memCom.DataType]expr.Type

+ func BuildVectorsFromHLLResult(result AQLQueryResult, dimDataTypes []memCom.DataType, ...) (hllVector, dimVector, countVector []byte, err error)

+ func CreateTimeFilterExpr(expression expr.Expr, from, to *AlignedTime) (fromExpr, toExpr expr.Expr)

+ func DimValResVectorSize(resultSize int, numDimsPerDimWidth DimCountsPerDimWidth) int

+ func GetCurrentCalendarUnit(base time.Time, unit string) (start, end time.Time, err error)

+ func GetDimensionDataBytes(expression expr.Expr) int

+ func GetDimensionDataType(expression expr.Expr) memCom.DataType

+ func ParseTimezone(timezone string) (*time.Location, error)

+ type AQLQuery struct

+ Dimensions []Dimension

+ Filters []string

+ FiltersParsed []expr.Expr

+ Joins []Join

+ Limit int

+ Measures []Measure

+ Now int64

+ SQLQuery string

+ Shards []int

+ Sorts []SortField

+ SupportingDimensions []Dimension

+ SupportingMeasures []Measure

+ Table string

+ TimeFilter TimeFilter

+ Timezone string

+ type AQLQueryResult map[string]interface

+ func (r AQLQueryResult) Append(dimValues []*string)

+ func (r AQLQueryResult) Set(dimValues []*string, measureValue *float64)

+ func (r AQLQueryResult) SetHLL(dimValues []*string, hll HLL)

+ func (r AQLQueryResult) SetHeaders(headers []string)

+ func ComputeHLLResult(result AQLQueryResult) AQLQueryResult

+ type AQLRequest struct

+ Queries []AQLQuery

+ type AQLResponse struct

+ Errors []error

+ QueryContext []string

+ Results []AQLQueryResult

+ type AlignedTime struct

+ Time time.Time

+ Unit string

+ func ParseTimeFilter(filter TimeFilter, loc *time.Location, now time.Time) (from, to *AlignedTime, err error)

+ type Dimension struct

+ Alias string

+ Expr string

+ ExprParsed expr.Expr

+ NumericBucketizer NumericBucketizerDef

+ TimeBucketizer string

+ TimeUnit string

+ func (d Dimension) IsTimeDimension() bool

type HLL

+ func (hll *HLL) EncodeBinary() []byte

+ type HLLDataWriter struct

+ Buffer []byte

+ func (builder *HLLDataWriter) SerializeHeader() error

+ type HLLQueryResults struct

+ func NewHLLQueryResults() *HLLQueryResults

+ func (r *HLLQueryResults) GetBytes() []byte

+ func (r *HLLQueryResults) WriteError(err error)

+ func (r *HLLQueryResults) WriteResult(result []byte)

+ type Join struct

+ Alias string

+ Conditions []string

+ ConditionsParsed []expr.Expr

+ Table string

+ type Measure struct

+ Alias string

+ Expr string

+ ExprParsed expr.Expr

+ Filters []string

+ FiltersParsed []expr.Expr

+ type NumericBucketizerDef struct

+ BucketWidth float64

+ LogBase float64

+ ManualPartitions []float64

+ type SortField struct

+ Name string

+ Order string

+ type TimeFilter struct

+ Column string

+ From string

+ To string

v0.0.1

Nov 27, 2018

Changes in this version

+ const DaysPerWeek

+ const DenseDataLength

+ const DenseThreshold

+ const EnumDelimiter

+ const HLLDataHeader

+ const OldHLLDataHeader

+ const SecondsPer4Day

+ const SecondsPerDay

+ const SecondsPerHour

+ const SecondsPerMinute

+ const SecondsPerWeek

+ const WeekdayOffset

+ var BucketSizeToseconds = map[string]int

+ func CalculateEnumCasesBytes(enumCases []string) uint32

+ func GetDimensionStartOffsets(numDimsPerDimWidth DimCountsPerDimWidth, dimIndex int, length int) (valueOffset, nullOffset int)

+ func ReadDimension(valueStart, nullStart unsafe.Pointer, index int, dataType memCom.DataType, ...) *string

+ type AQLTimeSeriesResult map[string]interface

+ func (r AQLTimeSeriesResult) Set(dimValues []*string, measureValue *float64)

+ func (r AQLTimeSeriesResult) SetHLL(dimValues []*string, hll HLL)

+ func NewTimeSeriesHLLResult(buffer []byte, magicHeader uint32) (AQLTimeSeriesResult, error)

+ func ParseHLLQueryResults(data []byte) (queryResults []AQLTimeSeriesResult, queryErrors []error, err error)

+ type DimCountsPerDimWidth [5]uint8

+ type HLL struct

+ DenseData []byte

+ NonZeroRegisters uint16

+ SparseData []HLLRegister

+ func (hll *HLL) Compute() float64

+ func (hll *HLL) ConvertToDense()

+ func (hll *HLL) ConvertToSparse() bool

+ func (hll *HLL) Decode(data []byte)

+ func (hll *HLL) Encode() []byte

+ func (hll *HLL) Merge(other HLL)

+ func (hll *HLL) Set(index uint16, rho byte)

+ type HLLData struct

+ DataTypes []memCom.DataType

+ DimIndexes []int

+ EnumDicts map[int][]string

+ NumDimsPerDimWidth DimCountsPerDimWidth

+ PaddedHLLVectorLength int64

+ PaddedRawDimValuesVectorLength uint32

+ ResultSize uint32

+ func (data *HLLData) CalculateSizes() (uint32, int64)

+ type HLLRegister struct

+ Index uint16

+ Rho byte

+ type TimeDimensionMeta struct

+ DSTSwitchTs int64

+ FromOffset int

+ IsTimezoneTable bool

+ TimeBucketizer string

+ TimeUnit string

+ TimeZone *time.Location

+ ToOffset int

+ type TimeSeriesBucketizer struct

+ Size int

+ Unit string

+ func ParseRegularTimeBucketizer(timeBucketizerString string) (TimeSeriesBucketizer, error)