extensions

package
v0.4.0 Latest Latest
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 Go to latest Published: Jun 21, 2023 License: Apache-2.0 Imports: 11 Imported by: 12

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Constants

View Source 
const SubstraitDefaultURIPrefix = "https://github.com/substrait-io/substrait/blob/main/extensions/"

Variables

This section is empty.

Functions

func EvaluateTypeExpression 

func EvaluateTypeExpression(nullHandling NullabilityHandling, expr parser.TypeExpression, paramTypeList ArgumentList, actualTypes []types.Type) (types.Type, error)

Types

type AdvancedExtension 

type AdvancedExtension = extensions.AdvancedExtension

type AggVariantOptions 

type AggVariantOptions struct {
	Variadic         *VariadicBehavior
	SessionDependant bool
	Deterministic    bool
	Ordered          bool
	// value of 0 == unlimited
	MaxSet       uint
	Decomposable DecomposeType
	// should be a type expression
	// must not be empty if decomposable is not DecomposeNone
	IntermediateOutputType string
}

type AggregateFunction 

type AggregateFunction struct {
	Name        string
	Description string
	Impls       []AggregateFunctionImpl
}

func (*AggregateFunction) GetVariants 

func (s *AggregateFunction) GetVariants(uri string) []*AggregateFunctionVariant

func (*AggregateFunction) ResolveURI 

func (s *AggregateFunction) ResolveURI(uri string) []FunctionVariant

type AggregateFunctionImpl 

type AggregateFunctionImpl struct {
	ScalarFunctionImpl `yaml:",inline"`
	Intermediate       parser.TypeExpression
	Ordered            bool
	MaxSet             int
	Decomposable       DecomposeType
}

type AggregateFunctionVariant 

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

func NewAggFuncVariant 

func NewAggFuncVariant(id ID) *AggregateFunctionVariant

NewAggFuncVariant constructs a variant with the provided name and uri and uses the defaults for everything else.

Return expressions aren't included here as using this variant to construct an expression requires an output type argument. This is for creating an on-the-fly function variant that will not be registered as an extension.

func NewAggFuncVariantOpts 

func NewAggFuncVariantOpts(id ID, opts AggVariantOptions) *AggregateFunctionVariant

func (*AggregateFunctionVariant) Args 

func (s *AggregateFunctionVariant) Args() ArgumentList

func (*AggregateFunctionVariant) CompoundName 

func (s *AggregateFunctionVariant) CompoundName() string

func (*AggregateFunctionVariant) Decomposability 

func (s *AggregateFunctionVariant) Decomposability() DecomposeType

func (*AggregateFunctionVariant) Description 

func (s *AggregateFunctionVariant) Description() string

func (*AggregateFunctionVariant) Deterministic 

func (s *AggregateFunctionVariant) Deterministic() bool

func (*AggregateFunctionVariant) Intermediate 

func (s *AggregateFunctionVariant) Intermediate() (types.Type, error)

func (*AggregateFunctionVariant) MaxSet 

func (s *AggregateFunctionVariant) MaxSet() int

func (*AggregateFunctionVariant) Name 

func (s *AggregateFunctionVariant) Name() string

func (*AggregateFunctionVariant) Nullability 

func (s *AggregateFunctionVariant) Nullability() NullabilityHandling

func (*AggregateFunctionVariant) Options 

func (s *AggregateFunctionVariant) Options() map[string]Option

func (*AggregateFunctionVariant) Ordered 

func (s *AggregateFunctionVariant) Ordered() bool

func (*AggregateFunctionVariant) ResolveType 

func (s *AggregateFunctionVariant) ResolveType(argumentTypes []types.Type) (types.Type, error)

func (*AggregateFunctionVariant) SessionDependent 

func (s *AggregateFunctionVariant) SessionDependent() bool

func (*AggregateFunctionVariant) URI 

func (s *AggregateFunctionVariant) URI() string

func (*AggregateFunctionVariant) Variadic 

func (s *AggregateFunctionVariant) Variadic() *VariadicBehavior

type Argument 

type Argument interface {
	// contains filtered or unexported methods
}

type ArgumentList 

type ArgumentList []Argument

func (*ArgumentList) UnmarshalYAML 

func (a *ArgumentList) UnmarshalYAML(fn func(interface{}) error) error

type Collection 

type Collection struct {
	// contains filtered or unexported fields
}
var DefaultCollection Collection

DefaultCollection is loaded with the default Substrait extension definitions with the exception of decimal arithemtic. Decimal arithmetic functions are missing as the complex return type expressions are not yet implemented.

func (*Collection) GetAggregateFunc 

func (c *Collection) GetAggregateFunc(id ID) (*AggregateFunctionVariant, bool)

func (*Collection) GetScalarFunc 

func (c *Collection) GetScalarFunc(id ID) (*ScalarFunctionVariant, bool)

func (*Collection) GetType 

func (c *Collection) GetType(id ID) (t Type, ok bool)

func (*Collection) GetTypeVariation 

func (c *Collection) GetTypeVariation(id ID) (tv TypeVariation, ok bool)

func (*Collection) GetWindowFunc 

func (c *Collection) GetWindowFunc(id ID) (*WindowFunctionVariant, bool)

func (*Collection) Load 

func (c *Collection) Load(uri string, r io.Reader) error

func (*Collection) URILoaded 

func (c *Collection) URILoaded(uri string) bool

type DecomposeType 

type DecomposeType string
const (
	DecomposeNone DecomposeType = "NONE"
	DecomposeOne  DecomposeType = "ONE"
	DecomposeMany DecomposeType = "MANY"
)

type EnumArg 

type EnumArg struct {
	Name        string `yaml:",omitempty"`
	Description string `yaml:",omitempty"`
	Options     []string
}

type Function 

type Function interface {
	ResolveURI(uri string) []FunctionVariant
}

type FunctionVariant 

type FunctionVariant interface {
	Name() string
	CompoundName() string
	Description() string
	Args() ArgumentList
	Options() map[string]Option
	URI() string
	ResolveType(argTypes []types.Type) (types.Type, error)
	Variadic() *VariadicBehavior
}

type ID 

type ID struct {
	URI, Name string
}

type NullabilityHandling 

type NullabilityHandling string
const (
	MirrorNullability         NullabilityHandling = "MIRROR"
	DeclaredOutputNullability NullabilityHandling = "DECLARED_OUTPUT"
	DiscreteNullability       NullabilityHandling = "DISCRETE"
)

type Option 

type Option struct {
	Description string `yaml:",omitempty"`
	Values      []string
}

type ParamType 

type ParamType string
const (
	ParamDataType ParamType = "dataType"
	ParamBool     ParamType = "boolean"
	ParamInteger  ParamType = "integer"
	ParamEnum     ParamType = "enumeration"
	ParamString   ParamType = "string"
)

type ParameterConsistency 

type ParameterConsistency string
const (
	ConsistentParams   ParameterConsistency = "CONSISTENT"
	InconsistentParams ParameterConsistency = "INCONSISTENT"
)

type ScalarFunction 

type ScalarFunction struct {
	Name        string               `yaml:",omitempty"`
	Description string               `yaml:",omitempty,flow"`
	Impls       []ScalarFunctionImpl `yaml:",omitempty"`
}

func (*ScalarFunction) GetVariants 

func (s *ScalarFunction) GetVariants(uri string) []*ScalarFunctionVariant

func (*ScalarFunction) ResolveURI 

func (s *ScalarFunction) ResolveURI(uri string) []FunctionVariant

type ScalarFunctionImpl 

type ScalarFunctionImpl struct {
	Args             ArgumentList          `yaml:",omitempty"`
	Options          map[string]Option     `yaml:",omitempty"`
	Variadic         *VariadicBehavior     `yaml:",omitempty"`
	SessionDependent bool                  `yaml:"sessionDependent,omitempty"`
	Deterministic    bool                  `yaml:",omitempty"`
	Nullability      NullabilityHandling   `yaml:",omitempty"`
	Return           parser.TypeExpression `yaml:",omitempty"`
	Implementation   map[string]string     `yaml:",omitempty"`
}

type ScalarFunctionVariant 

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

func NewScalarFuncVariant 

func NewScalarFuncVariant(id ID) *ScalarFunctionVariant

NewScalarFuncVariant constructs a variant with the provided name and uri and uses the defaults for everything else.

Return expressions aren't included here as using this variant to construct an expression requires an output type argument. This is for creating an on-the-fly function variant that will not be registered as an extension.

func NewScalarFuncVariantWithProps 

func NewScalarFuncVariantWithProps(id ID, variadic *VariadicBehavior, sessionDependant, deterministic bool) *ScalarFunctionVariant

NewScalarFuncVariantWithProps is the same as NewScalarFuncVariant but allows setting the values for the SessionDependant, Variadic Behavior and Deterministic properties.

func (*ScalarFunctionVariant) Args 

func (s *ScalarFunctionVariant) Args() ArgumentList

func (*ScalarFunctionVariant) CompoundName 

func (s *ScalarFunctionVariant) CompoundName() string

func (*ScalarFunctionVariant) Description 

func (s *ScalarFunctionVariant) Description() string

func (*ScalarFunctionVariant) Deterministic 

func (s *ScalarFunctionVariant) Deterministic() bool

func (*ScalarFunctionVariant) Name 

func (s *ScalarFunctionVariant) Name() string

func (*ScalarFunctionVariant) Nullability 

func (s *ScalarFunctionVariant) Nullability() NullabilityHandling

func (*ScalarFunctionVariant) Options 

func (s *ScalarFunctionVariant) Options() map[string]Option

func (*ScalarFunctionVariant) ResolveType 

func (s *ScalarFunctionVariant) ResolveType(argumentTypes []types.Type) (types.Type, error)

func (*ScalarFunctionVariant) SessionDependent 

func (s *ScalarFunctionVariant) SessionDependent() bool

func (*ScalarFunctionVariant) URI 

func (s *ScalarFunctionVariant) URI() string

func (*ScalarFunctionVariant) Variadic 

func (s *ScalarFunctionVariant) Variadic() *VariadicBehavior

type Set 

type Set interface {
	DecodeTypeVariation(anchor uint32) (ID, bool)
	DecodeFunc(anchor uint32) (ID, bool)
	DecodeType(anchor uint32) (ID, bool)
	LookupTypeVariation(anchor uint32, c *Collection) (TypeVariation, bool)
	LookupType(anchor uint32, c *Collection) (Type, bool)
	LookupScalarFunction(anchor uint32, c *Collection) (*ScalarFunctionVariant, bool)
	LookupAggregateFunction(anchor uint32, c *Collection) (*AggregateFunctionVariant, bool)
	LookupWindowFunction(anchor uint32, c *Collection) (*WindowFunctionVariant, bool)

	FindURI(uri string) (uint32, bool)
	GetTypeAnchor(id ID) uint32
	GetFuncAnchor(id ID) uint32
	GetTypeVariationAnchor(id ID) uint32

	ToProto() ([]*extensions.SimpleExtensionURI, []*extensions.SimpleExtensionDeclaration)
}

func GetExtensionSet 

func GetExtensionSet(plan TopLevel) Set

func NewSet 

func NewSet() Set

type SimpleExtensionFile 

type SimpleExtensionFile struct {
	Types              []Type              `yaml:"types,omitempty"`
	TypeVariations     []TypeVariation     `yaml:"type_variations,omitempty"`
	ScalarFunctions    []ScalarFunction    `yaml:"scalar_functions,omitempty"`
	AggregateFunctions []AggregateFunction `yaml:"aggregate_functions,omitempty"`
	WindowFunctions    []WindowFunction    `yaml:"window_functions,omitempty"`
}

type TopLevel 

type TopLevel interface {
	GetExtensionUris() []*extensions.SimpleExtensionURI
	GetExtensions() []*extensions.SimpleExtensionDeclaration
}

type Type 

type Type struct {
	Name       string
	Variadic   bool
	Structure  TypeDef `yaml:",omitempty"`
	Parameters []TypeParamDef
}

type TypeArg 

type TypeArg struct {
	Name        string `yaml:",omitempty"`
	Description string `yaml:",omitempty"`
	Type        string
}

type TypeDef 

type TypeDef any

should be either a string or map[string]any

type TypeParamDef 

type TypeParamDef struct {
	Name        string
	Description string
	Type        ParamType
	Min         int
	Max         int
	Options     []string
	Optional    bool
}

type TypeVariation 

type TypeVariation struct {
	Name        string
	Parent      parser.TypeExpression
	Description string
	Functions   TypeVariationFunctions
}

type TypeVariationFunctions 

type TypeVariationFunctions string
const (
	TypeVariationInheritsFuncs TypeVariationFunctions = "INHERITS"
	TypeVariationSeparateFuncs TypeVariationFunctions = "SEPARATE"
)

type ValueArg 

type ValueArg struct {
	Name        string `yaml:",omitempty"`
	Description string `yaml:",omitempty"`
	Value       *parser.TypeExpression
	Constant    bool `yaml:",omitempty"`
}

type VariadicBehavior 

type VariadicBehavior struct {
	Min                  int                  `yaml:",omitempty"`
	Max                  int                  `yaml:",omitempty"`
	ParameterConsistency ParameterConsistency `yaml:"parameterConsistency,omitempty"`
}

type WindowFunction 

type WindowFunction struct {
	Name        string
	Description string
	Impls       []WindowFunctionImpl
}

func (*WindowFunction) GetVariants 

func (s *WindowFunction) GetVariants(uri string) []*WindowFunctionVariant

func (*WindowFunction) ResolveURI 

func (s *WindowFunction) ResolveURI(uri string) []FunctionVariant

type WindowFunctionImpl 

type WindowFunctionImpl struct {
	AggregateFunctionImpl `yaml:",inline"`
	WindowType            WindowType `yaml:"window_type"`
}

type WindowFunctionVariant 

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

func NewWindowFuncVariant 

func NewWindowFuncVariant(id ID) *WindowFunctionVariant

func NewWindowFuncVariantOpts 

func NewWindowFuncVariantOpts(id ID, opts WindowVariantOpts) *WindowFunctionVariant

func (*WindowFunctionVariant) Args 

func (s *WindowFunctionVariant) Args() ArgumentList

func (*WindowFunctionVariant) CompoundName 

func (s *WindowFunctionVariant) CompoundName() string

func (*WindowFunctionVariant) Decomposability 

func (s *WindowFunctionVariant) Decomposability() DecomposeType

func (*WindowFunctionVariant) Description 

func (s *WindowFunctionVariant) Description() string

func (*WindowFunctionVariant) Deterministic 

func (s *WindowFunctionVariant) Deterministic() bool

func (*WindowFunctionVariant) Intermediate 

func (s *WindowFunctionVariant) Intermediate() (types.Type, error)

func (*WindowFunctionVariant) MaxSet 

func (s *WindowFunctionVariant) MaxSet() int

func (*WindowFunctionVariant) Name 

func (s *WindowFunctionVariant) Name() string

func (*WindowFunctionVariant) Nullability 

func (s *WindowFunctionVariant) Nullability() NullabilityHandling

func (*WindowFunctionVariant) Options 

func (s *WindowFunctionVariant) Options() map[string]Option

func (*WindowFunctionVariant) Ordered 

func (s *WindowFunctionVariant) Ordered() bool

func (*WindowFunctionVariant) ResolveType 

func (s *WindowFunctionVariant) ResolveType(argumentTypes []types.Type) (types.Type, error)

func (*WindowFunctionVariant) SessionDependent 

func (s *WindowFunctionVariant) SessionDependent() bool

func (*WindowFunctionVariant) URI 

func (s *WindowFunctionVariant) URI() string

func (*WindowFunctionVariant) Variadic 

func (s *WindowFunctionVariant) Variadic() *VariadicBehavior

func (*WindowFunctionVariant) WindowType 

func (s *WindowFunctionVariant) WindowType() WindowType

type WindowType 

type WindowType string
const (
	StreamingWindow WindowType = "STREAMING"
	PartitionWindow WindowType = "PARTITION"
)

type WindowVariantOpts 

type WindowVariantOpts struct {
	Variadic         *VariadicBehavior
	SessionDependant bool
	Deterministic    bool
	Ordered          bool
	// value of 0 == unlimited
	MaxSet       uint
	Decomposable DecomposeType
	// should be a type expression
	// must not be empty if decomposable is not DecomposeNone
	IntermediateOutputType string
	WindowType             WindowType
}

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