array

package
v0.177.1 Latest Latest
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 Go to latest Published: Aug 8, 2022 License: MIT Imports: 6 Imported by: 3

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Index

Constants

This section is empty.

Variables

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var (
	IntType     = arrow.PrimitiveTypes.Int64
	UintType    = arrow.PrimitiveTypes.Uint64
	FloatType   = arrow.PrimitiveTypes.Float64
	StringType  = arrow.BinaryTypes.String
	BooleanType = arrow.FixedWidthTypes.Boolean
)

Functions

This section is empty.

Types

type Array added in v0.158.0 

type Array interface {
	// DataType returns the type metadata for this instance.
	DataType() DataType

	// NullN returns the number of null values in the array.
	NullN() int

	// NullBitmapBytes returns a byte slice of the validity bitmap.
	NullBitmapBytes() []byte

	// IsNull returns true if value at index is null.
	// NOTE: IsNull will panic if NullBitmapBytes is not empty and 0 > i ≥ Len.
	IsNull(i int) bool

	// IsValid returns true if value at index is not null.
	// NOTE: IsValid will panic if NullBitmapBytes is not empty and 0 > i ≥ Len.
	IsValid(i int) bool

	// Len returns the number of elements in the array.
	Len() int

	// Retain increases the reference count by 1.
	// Retain may be called simultaneously from multiple goroutines.
	Retain()

	// Release decreases the reference count by 1.
	// Release may be called simultaneously from multiple goroutines.
	// When the reference count goes to zero, the memory is freed.
	Release()
}

Array represents an immutable sequence of values.

This type is derived from the arrow.Array interface.

func Slice added in v0.125.0 

func Slice(arr Array, i, j int) Array

Slice will construct a new slice of the array using the given start and stop index. The returned array must be released.

This is functionally equivalent to using array.NewSlice, but array.NewSlice will construct an array.String when the data type is a string rather than an array.Binary.

type Boolean 

type Boolean = array.Boolean

func And added in v0.168.0 

func And(l, r *Boolean, mem memory.Allocator) (*Boolean, error)

func BooleanConditional added in v0.177.0 

func BooleanConditional(t *Boolean, c, a *Boolean, mem memory.Allocator) (*Boolean, error)

func BooleanConditionalAConst added in v0.177.0 

func BooleanConditionalAConst(t *Boolean, c *Boolean, a bool, mem memory.Allocator) (*Boolean, error)

func BooleanConditionalCConst added in v0.177.0 

func BooleanConditionalCConst(t *Boolean, c bool, a *Boolean, mem memory.Allocator) (*Boolean, error)

func BooleanConditionalCConstAConst added in v0.177.0 

func BooleanConditionalCConstAConst(t *Boolean, c, a bool, mem memory.Allocator) (*Boolean, error)

func BooleanRepeat added in v0.125.0 

func BooleanRepeat(v bool, isNull bool, n int, mem memory.Allocator) *Boolean

func Or added in v0.168.0 

func Or(l, r *Boolean, mem memory.Allocator) (*Boolean, error)

type BooleanBuilder 

type BooleanBuilder struct {
	// contains filtered or unexported fields
}

func NewBooleanBuilder added in v0.125.0 

func NewBooleanBuilder(mem memory.Allocator) *BooleanBuilder

func (*BooleanBuilder) Append 

func (b *BooleanBuilder) Append(v bool)

func (*BooleanBuilder) AppendNull added in v0.125.0 

func (b *BooleanBuilder) AppendNull()

func (*BooleanBuilder) AppendValues 

func (b *BooleanBuilder) AppendValues(v []bool, valid []bool)

func (*BooleanBuilder) Cap added in v0.125.0 

func (b *BooleanBuilder) Cap() int

func (*BooleanBuilder) Len added in v0.125.0 

func (b *BooleanBuilder) Len() int

func (*BooleanBuilder) NewArray added in v0.125.0 

func (b *BooleanBuilder) NewArray() Array

func (*BooleanBuilder) NewBooleanArray added in v0.125.0 

func (b *BooleanBuilder) NewBooleanArray() *Boolean

func (*BooleanBuilder) NullN added in v0.125.0 

func (b *BooleanBuilder) NullN() int

func (*BooleanBuilder) Release added in v0.125.0 

func (b *BooleanBuilder) Release()

func (*BooleanBuilder) Reserve added in v0.125.0 

func (b *BooleanBuilder) Reserve(n int)

func (*BooleanBuilder) Resize added in v0.125.0 

func (b *BooleanBuilder) Resize(n int)

func (*BooleanBuilder) Retain added in v0.125.0 

func (b *BooleanBuilder) Retain()

func (*BooleanBuilder) UnsafeAppend added in v0.125.0 

func (b *BooleanBuilder) UnsafeAppend(v bool)

func (*BooleanBuilder) UnsafeAppendBoolToBitmap added in v0.125.0 

func (b *BooleanBuilder) UnsafeAppendBoolToBitmap(isValid bool)

type Builder added in v0.125.0 

type Builder interface {
	// Retain increases the reference count by 1.
	// Retain may be called simultaneously from multiple goroutines.
	Retain()

	// Release decreases the reference count by 1.
	Release()

	// Len returns the number of elements in the array builder.
	Len() int

	// Cap returns the total number of elements that can be stored
	// without allocating additional memory.
	Cap() int

	// NullN returns the number of null values in the array builder.
	NullN() int

	// AppendNull adds a new null value to the array being built.
	AppendNull()

	// Reserve ensures there is enough space for appending n elements
	// by checking the capacity and calling Resize if necessary.
	Reserve(n int)

	// Resize adjusts the space allocated by b to n elements. If n is greater than b.Cap(),
	// additional memory will be allocated. If n is smaller, the allocated memory may reduced.
	Resize(n int)

	// NewArray creates a new array from the memory buffers used
	// by the builder and resets the Builder so it can be used to build
	// a new array.
	NewArray() Array
}

Builder provides an interface to build arrow arrays.

This type is derived from the arrow array.Builder interface.

type DataType added in v0.125.0 

type DataType = arrow.DataType

type Float 

type Float = array.Float64

func FloatAdd added in v0.165.0 

func FloatAdd(l, r *Float, mem memory.Allocator) (*Float, error)

func FloatAddLConst added in v0.175.0 

func FloatAddLConst(l float64, r *Float, mem memory.Allocator) (*Float, error)

func FloatAddRConst added in v0.175.0 

func FloatAddRConst(l *Float, r float64, mem memory.Allocator) (*Float, error)

func FloatConditional added in v0.177.0 

func FloatConditional(t *Boolean, c, a *Float, mem memory.Allocator) (*Float, error)

func FloatConditionalAConst added in v0.177.0 

func FloatConditionalAConst(t *Boolean, c *Float, a float64, mem memory.Allocator) (*Float, error)

func FloatConditionalCConst added in v0.177.0 

func FloatConditionalCConst(t *Boolean, c float64, a *Float, mem memory.Allocator) (*Float, error)

func FloatConditionalCConstAConst added in v0.177.0 

func FloatConditionalCConstAConst(t *Boolean, c, a float64, mem memory.Allocator) (*Float, error)

func FloatDiv added in v0.166.0 

func FloatDiv(l, r *Float, mem memory.Allocator) (*Float, error)

func FloatDivLConst added in v0.175.0 

func FloatDivLConst(l float64, r *Float, mem memory.Allocator) (*Float, error)

func FloatDivRConst added in v0.175.0 

func FloatDivRConst(l *Float, r float64, mem memory.Allocator) (*Float, error)

func FloatMod added in v0.166.0 

func FloatMod(l, r *Float, mem memory.Allocator) (*Float, error)

func FloatModLConst added in v0.175.0 

func FloatModLConst(l float64, r *Float, mem memory.Allocator) (*Float, error)

func FloatModRConst added in v0.175.0 

func FloatModRConst(l *Float, r float64, mem memory.Allocator) (*Float, error)

func FloatMul added in v0.166.0 

func FloatMul(l, r *Float, mem memory.Allocator) (*Float, error)

func FloatMulLConst added in v0.175.0 

func FloatMulLConst(l float64, r *Float, mem memory.Allocator) (*Float, error)

func FloatMulRConst added in v0.175.0 

func FloatMulRConst(l *Float, r float64, mem memory.Allocator) (*Float, error)

func FloatPow added in v0.166.0 

func FloatPow(l, r *Float, mem memory.Allocator) (*Float, error)

func FloatPowLConst added in v0.175.0 

func FloatPowLConst(l float64, r *Float, mem memory.Allocator) (*Float, error)

func FloatPowRConst added in v0.175.0 

func FloatPowRConst(l *Float, r float64, mem memory.Allocator) (*Float, error)

func FloatRepeat added in v0.125.0 

func FloatRepeat(v float64, isNull bool, n int, mem memory.Allocator) *Float

func FloatSub added in v0.166.0 

func FloatSub(l, r *Float, mem memory.Allocator) (*Float, error)

func FloatSubLConst added in v0.175.0 

func FloatSubLConst(l float64, r *Float, mem memory.Allocator) (*Float, error)

func FloatSubRConst added in v0.175.0 

func FloatSubRConst(l *Float, r float64, mem memory.Allocator) (*Float, error)

func IntPow added in v0.166.0 

func IntPow(l, r *Int, mem memory.Allocator) (*Float, error)

func IntPowLConst added in v0.175.0 

func IntPowLConst(l int64, r *Int, mem memory.Allocator) (*Float, error)

func IntPowRConst added in v0.175.0 

func IntPowRConst(l *Int, r int64, mem memory.Allocator) (*Float, error)

func UintPow added in v0.166.0 

func UintPow(l, r *Uint, mem memory.Allocator) (*Float, error)

func UintPowLConst added in v0.175.0 

func UintPowLConst(l uint64, r *Uint, mem memory.Allocator) (*Float, error)

func UintPowRConst added in v0.175.0 

func UintPowRConst(l *Uint, r uint64, mem memory.Allocator) (*Float, error)

type FloatBuilder 

type FloatBuilder struct {
	// contains filtered or unexported fields
}

func NewFloatBuilder added in v0.125.0 

func NewFloatBuilder(mem memory.Allocator) *FloatBuilder

func (*FloatBuilder) Append 

func (b *FloatBuilder) Append(v float64)

func (*FloatBuilder) AppendNull added in v0.125.0 

func (b *FloatBuilder) AppendNull()

func (*FloatBuilder) AppendValues 

func (b *FloatBuilder) AppendValues(v []float64, valid []bool)

func (*FloatBuilder) Cap added in v0.125.0 

func (b *FloatBuilder) Cap() int

func (*FloatBuilder) Len added in v0.125.0 

func (b *FloatBuilder) Len() int

func (*FloatBuilder) NewArray added in v0.125.0 

func (b *FloatBuilder) NewArray() Array

func (*FloatBuilder) NewFloatArray added in v0.125.0 

func (b *FloatBuilder) NewFloatArray() *Float

func (*FloatBuilder) NullN added in v0.125.0 

func (b *FloatBuilder) NullN() int

func (*FloatBuilder) Release added in v0.125.0 

func (b *FloatBuilder) Release()

func (*FloatBuilder) Reserve added in v0.125.0 

func (b *FloatBuilder) Reserve(n int)

func (*FloatBuilder) Resize added in v0.125.0 

func (b *FloatBuilder) Resize(n int)

func (*FloatBuilder) Retain added in v0.125.0 

func (b *FloatBuilder) Retain()

func (*FloatBuilder) UnsafeAppend added in v0.125.0 

func (b *FloatBuilder) UnsafeAppend(v float64)

func (*FloatBuilder) UnsafeAppendBoolToBitmap added in v0.125.0 

func (b *FloatBuilder) UnsafeAppendBoolToBitmap(isValid bool)

type Int 

type Int = array.Int64

func IntAdd added in v0.165.0 

func IntAdd(l, r *Int, mem memory.Allocator) (*Int, error)

func IntAddLConst added in v0.175.0 

func IntAddLConst(l int64, r *Int, mem memory.Allocator) (*Int, error)

func IntAddRConst added in v0.175.0 

func IntAddRConst(l *Int, r int64, mem memory.Allocator) (*Int, error)

func IntConditional added in v0.177.0 

func IntConditional(t *Boolean, c, a *Int, mem memory.Allocator) (*Int, error)

func IntConditionalAConst added in v0.177.0 

func IntConditionalAConst(t *Boolean, c *Int, a int64, mem memory.Allocator) (*Int, error)

func IntConditionalCConst added in v0.177.0 

func IntConditionalCConst(t *Boolean, c int64, a *Int, mem memory.Allocator) (*Int, error)

func IntConditionalCConstAConst added in v0.177.0 

func IntConditionalCConstAConst(t *Boolean, c, a int64, mem memory.Allocator) (*Int, error)

func IntDiv added in v0.166.0 

func IntDiv(l, r *Int, mem memory.Allocator) (*Int, error)

func IntDivLConst added in v0.175.0 

func IntDivLConst(l int64, r *Int, mem memory.Allocator) (*Int, error)

func IntDivRConst added in v0.175.0 

func IntDivRConst(l *Int, r int64, mem memory.Allocator) (*Int, error)

func IntMod added in v0.166.0 

func IntMod(l, r *Int, mem memory.Allocator) (*Int, error)

func IntModLConst added in v0.175.0 

func IntModLConst(l int64, r *Int, mem memory.Allocator) (*Int, error)

func IntModRConst added in v0.175.0 

func IntModRConst(l *Int, r int64, mem memory.Allocator) (*Int, error)

func IntMul added in v0.166.0 

func IntMul(l, r *Int, mem memory.Allocator) (*Int, error)

func IntMulLConst added in v0.175.0 

func IntMulLConst(l int64, r *Int, mem memory.Allocator) (*Int, error)

func IntMulRConst added in v0.175.0 

func IntMulRConst(l *Int, r int64, mem memory.Allocator) (*Int, error)

func IntRepeat added in v0.125.0 

func IntRepeat(v int64, isNull bool, n int, mem memory.Allocator) *Int

func IntSub added in v0.166.0 

func IntSub(l, r *Int, mem memory.Allocator) (*Int, error)

func IntSubLConst added in v0.175.0 

func IntSubLConst(l int64, r *Int, mem memory.Allocator) (*Int, error)

func IntSubRConst added in v0.175.0 

func IntSubRConst(l *Int, r int64, mem memory.Allocator) (*Int, error)

type IntBuilder 

type IntBuilder struct {
	// contains filtered or unexported fields
}

func NewIntBuilder added in v0.125.0 

func NewIntBuilder(mem memory.Allocator) *IntBuilder

func (*IntBuilder) Append 

func (b *IntBuilder) Append(v int64)

func (*IntBuilder) AppendNull added in v0.125.0 

func (b *IntBuilder) AppendNull()

func (*IntBuilder) AppendValues 

func (b *IntBuilder) AppendValues(v []int64, valid []bool)

func (*IntBuilder) Cap added in v0.125.0 

func (b *IntBuilder) Cap() int

func (*IntBuilder) Len added in v0.125.0 

func (b *IntBuilder) Len() int

func (*IntBuilder) NewArray added in v0.125.0 

func (b *IntBuilder) NewArray() Array

func (*IntBuilder) NewIntArray added in v0.125.0 

func (b *IntBuilder) NewIntArray() *Int

func (*IntBuilder) NullN added in v0.125.0 

func (b *IntBuilder) NullN() int

func (*IntBuilder) Release added in v0.125.0 

func (b *IntBuilder) Release()

func (*IntBuilder) Reserve added in v0.125.0 

func (b *IntBuilder) Reserve(n int)

func (*IntBuilder) Resize added in v0.125.0 

func (b *IntBuilder) Resize(n int)

func (*IntBuilder) Retain added in v0.125.0 

func (b *IntBuilder) Retain()

func (*IntBuilder) UnsafeAppend added in v0.125.0 

func (b *IntBuilder) UnsafeAppend(v int64)

func (*IntBuilder) UnsafeAppendBoolToBitmap added in v0.125.0 

func (b *IntBuilder) UnsafeAppendBoolToBitmap(isValid bool)

type String 

type String struct {
	// contains filtered or unexported fields
}

func NewStringFromBinaryArray added in v0.150.0 

func NewStringFromBinaryArray(data *array.Binary) *String

NewStringFromBinaryArray creates an instance of String from an Arrow Binary array.

Note: Generally client code should be using the types for arrays defined in Flux. This method allows string data created outside of Flux (such as from Arrow Flight) to be used in Flux.

func StringAdd added in v0.165.0 

func StringAdd(l, r *String, mem memory.Allocator) (*String, error)

func StringAddLConst added in v0.175.0 

func StringAddLConst(l string, r *String, mem memory.Allocator) (*String, error)

func StringAddRConst added in v0.175.0 

func StringAddRConst(l *String, r string, mem memory.Allocator) (*String, error)

func StringConditional added in v0.177.0 

func StringConditional(t *Boolean, c, a *String, mem memory.Allocator) (*String, error)

func StringConditionalAConst added in v0.177.0 

func StringConditionalAConst(t *Boolean, c *String, a string, mem memory.Allocator) (*String, error)

func StringConditionalCConst added in v0.177.0 

func StringConditionalCConst(t *Boolean, c string, a *String, mem memory.Allocator) (*String, error)

func StringConditionalCConstAConst added in v0.177.0 

func StringConditionalCConstAConst(t *Boolean, c, a string, mem memory.Allocator) (*String, error)

func StringRepeat added in v0.125.0 

func StringRepeat(v string, n int, mem memory.Allocator) *String

func (*String) DataType added in v0.125.0 

func (a *String) DataType() DataType

func (*String) IsConstant added in v0.154.0 

func (a *String) IsConstant() bool

func (*String) IsNull added in v0.125.0 

func (a *String) IsNull(i int) bool

func (*String) IsValid added in v0.125.0 

func (a *String) IsValid(i int) bool

func (*String) Len added in v0.125.0 

func (a *String) Len() int

func (*String) NullBitmapBytes added in v0.125.0 

func (a *String) NullBitmapBytes() []byte

func (*String) NullN added in v0.125.0 

func (a *String) NullN() int

func (*String) Release added in v0.125.0 

func (a *String) Release()

func (*String) Retain added in v0.125.0 

func (a *String) Retain()

func (*String) Slice added in v0.125.0 

func (a *String) Slice(i, j int) Array

func (*String) Value 

func (a *String) Value(i int) string

func (*String) ValueLen added in v0.125.0 

func (a *String) ValueLen(i int) int

type StringBuilder 

type StringBuilder struct {
	// contains filtered or unexported fields
}

func NewStringBuilder added in v0.125.0 

func NewStringBuilder(mem memory.Allocator) *StringBuilder

func (*StringBuilder) Append 

func (b *StringBuilder) Append(v string)

func (*StringBuilder) AppendNull added in v0.125.0 

func (b *StringBuilder) AppendNull()

func (*StringBuilder) AppendValues 

func (b *StringBuilder) AppendValues(v []string, valid []bool)

func (*StringBuilder) Cap added in v0.125.0 

func (b *StringBuilder) Cap() int

func (*StringBuilder) Len added in v0.125.0 

func (b *StringBuilder) Len() int

func (*StringBuilder) NewArray added in v0.125.0 

func (b *StringBuilder) NewArray() Array

func (*StringBuilder) NewStringArray added in v0.125.0 

func (b *StringBuilder) NewStringArray() *String

func (*StringBuilder) NullN added in v0.125.0 

func (b *StringBuilder) NullN() int

func (*StringBuilder) Release added in v0.125.0 

func (b *StringBuilder) Release()

func (*StringBuilder) Reserve added in v0.125.0 

func (b *StringBuilder) Reserve(n int)

func (*StringBuilder) ReserveData added in v0.125.0 

func (b *StringBuilder) ReserveData(n int)

func (*StringBuilder) Resize added in v0.125.0 

func (b *StringBuilder) Resize(n int)

func (*StringBuilder) Retain added in v0.125.0 

func (b *StringBuilder) Retain()

func (*StringBuilder) UnsafeAppendBoolToBitmap added in v0.125.0 

func (b *StringBuilder) UnsafeAppendBoolToBitmap(isValid bool)

type Uint added in v0.125.0 

type Uint = array.Uint64

func UintAdd added in v0.165.0 

func UintAdd(l, r *Uint, mem memory.Allocator) (*Uint, error)

func UintAddLConst added in v0.175.0 

func UintAddLConst(l uint64, r *Uint, mem memory.Allocator) (*Uint, error)

func UintAddRConst added in v0.175.0 

func UintAddRConst(l *Uint, r uint64, mem memory.Allocator) (*Uint, error)

func UintConditional added in v0.177.0 

func UintConditional(t *Boolean, c, a *Uint, mem memory.Allocator) (*Uint, error)

func UintConditionalAConst added in v0.177.0 

func UintConditionalAConst(t *Boolean, c *Uint, a uint64, mem memory.Allocator) (*Uint, error)

func UintConditionalCConst added in v0.177.0 

func UintConditionalCConst(t *Boolean, c uint64, a *Uint, mem memory.Allocator) (*Uint, error)

func UintConditionalCConstAConst added in v0.177.0 

func UintConditionalCConstAConst(t *Boolean, c, a uint64, mem memory.Allocator) (*Uint, error)

func UintDiv added in v0.166.0 

func UintDiv(l, r *Uint, mem memory.Allocator) (*Uint, error)

func UintDivLConst added in v0.175.0 

func UintDivLConst(l uint64, r *Uint, mem memory.Allocator) (*Uint, error)

func UintDivRConst added in v0.175.0 

func UintDivRConst(l *Uint, r uint64, mem memory.Allocator) (*Uint, error)

func UintMod added in v0.166.0 

func UintMod(l, r *Uint, mem memory.Allocator) (*Uint, error)

func UintModLConst added in v0.175.0 

func UintModLConst(l uint64, r *Uint, mem memory.Allocator) (*Uint, error)

func UintModRConst added in v0.175.0 

func UintModRConst(l *Uint, r uint64, mem memory.Allocator) (*Uint, error)

func UintMul added in v0.166.0 

func UintMul(l, r *Uint, mem memory.Allocator) (*Uint, error)

func UintMulLConst added in v0.175.0 

func UintMulLConst(l uint64, r *Uint, mem memory.Allocator) (*Uint, error)

func UintMulRConst added in v0.175.0 

func UintMulRConst(l *Uint, r uint64, mem memory.Allocator) (*Uint, error)

func UintRepeat added in v0.125.0 

func UintRepeat(v uint64, isNull bool, n int, mem memory.Allocator) *Uint

func UintSub added in v0.166.0 

func UintSub(l, r *Uint, mem memory.Allocator) (*Uint, error)

func UintSubLConst added in v0.175.0 

func UintSubLConst(l uint64, r *Uint, mem memory.Allocator) (*Uint, error)

func UintSubRConst added in v0.175.0 

func UintSubRConst(l *Uint, r uint64, mem memory.Allocator) (*Uint, error)

type UintBuilder added in v0.125.0 

type UintBuilder struct {
	// contains filtered or unexported fields
}

func NewUintBuilder added in v0.125.0 

func NewUintBuilder(mem memory.Allocator) *UintBuilder

func (*UintBuilder) Append added in v0.125.0 

func (b *UintBuilder) Append(v uint64)

func (*UintBuilder) AppendNull added in v0.125.0 

func (b *UintBuilder) AppendNull()

func (*UintBuilder) AppendValues added in v0.125.0 

func (b *UintBuilder) AppendValues(v []uint64, valid []bool)

func (*UintBuilder) Cap added in v0.125.0 

func (b *UintBuilder) Cap() int

func (*UintBuilder) Len added in v0.125.0 

func (b *UintBuilder) Len() int

func (*UintBuilder) NewArray added in v0.125.0 

func (b *UintBuilder) NewArray() Array

func (*UintBuilder) NewUintArray added in v0.125.0 

func (b *UintBuilder) NewUintArray() *Uint

func (*UintBuilder) NullN added in v0.125.0 

func (b *UintBuilder) NullN() int

func (*UintBuilder) Release added in v0.125.0 

func (b *UintBuilder) Release()

func (*UintBuilder) Reserve added in v0.125.0 

func (b *UintBuilder) Reserve(n int)

func (*UintBuilder) Resize added in v0.125.0 

func (b *UintBuilder) Resize(n int)

func (*UintBuilder) Retain added in v0.125.0 

func (b *UintBuilder) Retain()

func (*UintBuilder) UnsafeAppend added in v0.125.0 

func (b *UintBuilder) UnsafeAppend(v uint64)

func (*UintBuilder) UnsafeAppendBoolToBitmap added in v0.125.0 

func (b *UintBuilder) UnsafeAppendBoolToBitmap(isValid bool)

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